FIGARO费加罗TGS8100检测甲醛、VOC、酒精等贴片型空气质量传感器芯片
tgs2602.pdf tgs2000 系列传感器产品介绍，空气污染、臭味检测用说明书
TGS2602 空气污染、臭味检测用特点： 应用：・低功耗 ・空气清新机、换气扇控制 ・对VOC 、氨气、硫化氢有高灵敏度 ・脱臭器控制・长寿命、低成本 ・室内空气监视器・可利用简单电路下图是典型的香烟烟雾灵感度特性。
香烟的根数是约10平米的房间吸烟情况下的数值。
这里的纵轴也用传感器电阻比Rs/Rs(Air)来表示， 这里的Rs ､Rs(Air)定义如下： Rs ＝香烟的烟雾存在时的传感器电阻值 Rs(Air) ＝清洁大气中的传感器电阻值 香烟灵敏度特性：敏感素子由集成的加热器以及在氧化铝基板上形成的金属氧化物半导体构成。
当可检知的气体存在时，空气中该气体的浓度越高，传感器的电导率就越高。
使用简单的电路就可以将这种电导率的变化变换为与气体浓度对应的输出信号。
TGS2602不仅对香烟的烟雾或烹调臭味有很高的灵敏度，而且对硫化氢、VOC 、氨气有高灵敏度。
这种传感器是利用相对值检知来实现更接近人类感觉的控制，即以空气清洁的时候为基准，通过传感器电阻值比空气清洁时变化了多少来检测空气的污染程度。
下图是典型的灵敏度特性，全部是在标准试验条件下得出的结果。
（请看背面） 纵轴以传感器电阻比Rs/Rs(Air)表示，Rs ､Rs(Air)的定义如下： Rs ＝各种浓度气体中的传感器电阻值Rs(Air)＝清洁大气中的传感器电阻值灵敏度特性：规格： 结构及尺寸：型 号 TGS2602素子类型 26系列 标准封装 金属 对象气体氢气、酒精等检测范围 1 ～10 ppm标准回路加热器电压 VH 5.0±0.2V DC/AC 回路电压 VC 5.0±0.2V DC Ps 15mW ≦ 负载电阻 RL 可变Ps 15mW ≦标准试验加热器电阻 RH59 Ω（室温）加热器电流 IH 56mA 加热器功耗 PH 280mW VH ＝5.0V DC/AC 传感器电阻Rs10～100 K Ω（空气中） 灵敏度(Rs 的变化率)0.15～0.5Rs(乙醇：10 )Rs(Air)标准试验试验气体条件 20±2℃，65±5％RH 回路条件 VC ＝5.0±0.2V DCVH ＝5.0±0.2V DC/AC试验前预热时间 96小时以上功耗（Ps ）值可用下式计算： 传感器电阻（Rs ），可根据VOUT测定值，用下式计算：为提高性能，本规格书将不事先预告而变更。
日本费加罗Figaro氧气传感器
日本费加罗Figaro氧气传感器广州南创陈工FIGARO是一家专业生产半导体气体传感器的公司，1962年发明全球第一款半导体产品，目前全球第一。
FIGARO的产品远销38个国家，在多个国家设立了分支机构或办事处，生产基地遍布美洲、东欧、中国等地；并在中国设立了广州南创传感器事业部，可为用户的实验和生产提供最佳的服务与解决方案。
半导体气体传感器采用金属氧化物半导体烧结工艺，对被检测的检测气体具有灵敏度高、响应时间短、成本低、长期稳定性好等优点。
我们的产品包括可燃气体、有毒气体、空气质量、一氧化碳、二氧化碳、氨气、汽车尾气、酒精等传感器元件、传感模块等，以及各种气体传感器的配套产品。
目前已经被广泛应用于家用燃气报警器、工业有毒气体报警器、空气清新机、换气空调、空气质量控制、汽车尾气检测、蔬菜大棚、酒精检测、孵化机械等。
日本费加罗Figaro氧气传感器KE-25KE-50信息日本费加罗Figaro氧气传感器KE-25KE-50性能：测量范围：0-100％O2精度：氧气传感器KE-25：±1％（全量程）；氧气传感器KE-50：±2％（全量程）工作温度：5～40℃储存温度：-20～＋60℃响应时间：KE-25：14±2秒；KE-50：60±5秒初始输出：KE-25：10.0–15.5mv；KE-50：47.0-65.0mv期望寿命：KE-25：5年；KE-50：10年日本费加罗Figaro氧气传感器KE-25KE-50特性：长寿命（KE-25-5年，KE-50-10年）不受CO2，CO，H2S，NOx，H2影响低成本，在常温下工作信号输出定，无需外部电源不需加热以上日本费加罗Figaro氧气传感器技术参数以《OIML60号国际建议》92年版为基础，最新具体变化可查看《JJG669—12FIGARO广州南创传感器事业部检定规程》产品特性描述：氧气传感器KE-25KE-50属于半导体气体传感器不受CO2，CO，H2S，NOx，H2影响，氧气传感器KE-25KE-50低成本在常温下工作信号输出定，无需外部电源不需加热；精度氧气传。
环境测试舱法测定装饰装修材料游离甲醛VOC释放量
环境测试舱法测定装饰装修材料游离甲醛VOC释放量
游离甲醛是一种常见的室内VOC，它是许多装饰装修材料（如刨花板、胶合板、涂料和胶水等）的主要释放源。
长期暴露在高浓度的甲醛环境中
可能会导致眼痛、嗓子痛、头痛、皮肤过敏甚至呼吸系统疾病。
因此，对
装饰装修材料中甲醛含量的准确测定是室内空气质量监测的重要工作之一环境测试舱通常包括一个闭合的房间，该房间内设置有恒温恒湿系统、空气流通系统和甲醛检测仪器。
在测试过程中，选择一种或多种待测材料
置于环境测试舱内，然后控制室温和湿度。
通风系统会不断循环室内空气，保持室内空气流通和新鲜。
在一定时间的测试过程中，甲醛检测仪器会实
时监测室内空气中甲醛的浓度。
测试完成后，可以通过计算得到装修材料的甲醛释放量，通常以
mg/m3或mg/kg的形式给出。
这种量化的结果可以作为消费者选择装修材
料时的重要参考指标。
除了甲醛，环境测试舱还可以测定其他VOC的释放量。
VOC是一类易
挥发的有机化合物，包括苯、甲苯、二甲苯、乙醛等。
这些化合物也是装
饰装修材料中常见的释放物质，严重的室内VOC污染可能导致呼吸系统疾病、头痛、乏力等不适症状。
因此，对装修材料中VOC含量的测定也是室
内空气质量监测的重要内容。
总之，环境测试舱可用于测定装饰装修材料游离甲醛和VOC的释放量。
它通过对材料在初始状态下的游离甲醛和VOC含量以及室内环境中的浓度
进行实时监测，最终得到材料的甲醛和VOC释放量。
这种测试方法能够全
面评估装修材料对室内空气质量的影响，帮助人们选择健康环保的装饰装
修材料。
贴片式检测VOC、烟气、酒精等气体传感器TGS8100
[年] 贴片式检测VOC、烟气、酒精等气体传感器TGS8100特征:应用:* 表贴封装* 功耗低* 对香烟烟气、厨房油烟和气态空气污染物高度敏感* 寿命长* 成本低* 室内空气质量监测器* 空气净化器* 通风控制* 厨房抽油烟机控制* 小体积智能穿戴传感元件由传感芯片、采用MEMS技术在硅衬底上形成的集成加热器以及传感芯片上形成的金属氧化物半导体层构成。
该元件被安置在陶瓷表贴封装中。
基于传感芯片的微型化设计，TGS8100仅需15mW的加热功率，非常适合低功耗和电池供电的设备。
如果存在可检测的气体，传感器电导率将随空气中气体浓度上升。
此时，简单的电路即可将电导率的改变转换成与气体浓度相符的输出信号。
TGS8100对低浓度气态空气污染物如香烟烟气和厨房油烟高度敏感。
通过利用传感器电阻相对其在洁净空气中电阻的改变率，并将其作为相对响应值，即可模拟人类对空气污染物的感知，进而实现实用的空气质量控制。
空气检测传感器测量范围：1-30ppm检测端电压： Vc = 最大3VDC持续2ms,0VDC持续998ms 电路加热端电压：Vh = 1.8V DC±2%灵敏度（电阻比）：0--0.6（10ppmH2阻值/空气中阻值）环境温度： -10～50℃空气质量传感器TGS8100主要特点:功耗低：全球最低功耗----15mW全球最小尺寸： 3.2*2.5*0.99（mm）响应速度快、对污染气体高的灵敏性、长寿命，低价位、应用电路简单，可用于空气质量检测及室内空气质量检测，小体积智能穿戴产品等。
[年]下图所示为典型灵敏度特性，所有数据均在标准测试条件（见背 面参数表）下采集 。
Y 轴表示传感器电阻比（Rs/Ro ），定义如 下：Rs =不同浓度的各类气体中传感器电阻 Ro = 洁净空气中传感器电阻下图所示为典型温度和湿度特性，同样，Y 轴表示传感器电 阻比（Rs/Ro ），定义如下： Rs =不同温度/湿度环境下传感器在洁净空气中的电阻Ro = 温度20℃，湿度65%时传感器在洁净空气中电阻灵敏度特性: 温度/湿度特性:1010.10.011101001000气体浓度 (ppm)重要提示: 由于各客户对费加罗传感器的特定应用环境和条件存在差异，我们强烈建议在您的应用中布置传感器之前请咨询费加罗技术人员。
空气质量传感器
举例来说，下面是温度影响一氧化碳敏感度的基准数据：
—10℃
24nA/ppm CO
25℃
31nA/ppm CO
50℃
34nA/ppm CO
产品构造 产品的尺寸为 35mm 的方形，9.5mm 的高度。在四个角的位置各有一个安全的孔。表面上 有一个可以接入 1.5mm*31mm 的 ID 口的 O 形凹槽，确保了产品的密封性。这样可以防止 污染气体从传感器后面进入而引起的读数错误的现象出现。
低成本 设计构造简单以及很少的部件使得其成本得到降低，从而形成更有竞争力的价格。
感应气体种类广 对一氧化碳，二氧化硫，硫化氢，酒精，乙醛，氢气，二甲醚和乙烯敏感，对烷烃，酮，芳 香烃，二氧化碳和水蒸气不具有敏感性。
长寿命 它使用的是在世界范围内已经有 30 多年使用经验的呼吸酒精传感器的元件。而呼吸酒精传 感器的精度，稳定性和长久性都是已经得到了验证的。
响应快速 一条短小且低阻抗的扩散路径使其响应时间很少
电源要求低 燃料电池原理意味着它并不需要电源激励，仅仅在信号的处理和显示时需要电能，所以仅仅 一个简单的小电池单元即可。
稳定性 非常好的稳定性，允许在使用过程中非常长的校准周期
可承受高压 采用非薄膜构造，不包含在高压环境下容易破碎的元件，经验证，可以承受 10 个大气压力。
信号放大 输出信号放大的首选方法是使用一个直接的电流到电压放大的运算放大器。这样的话传感器 将工作在其最好的模式下。得到的信号值取决于反馈电阻的大小；比方说使用 1000 欧姆的 电阻值，那么一个输出为 5nA 的信号将会转化为 5mV 的输出信号。 因为在开路状态传感器可能会逐渐引起偏移，虽然不会对产品有损伤，但是也要花费时间去 放电。所以在储藏期间一般将输出端子进行短路处理，这样就不会出现明显的长期的偏移量 。 在使用过程中，为了避免在放大器被断开的时候偏移量的增加，可以在两端子之间连接一个 低阻值的电阻（典型值为 620 欧姆）。另外，也可将放大器持续供电。 下面给出典型的应用电路：
费加罗TGS681x催化燃烧式气体传感器应用手册说明书
TGS681x 气体传感器是采用独一无二的失效保护理念设计而成的非常独特的催化燃烧式传感器。
本手册提供了关于使用费加罗的独特催化型传感器TGS6810和TGS6812的气体检测器在设计和制造方面的重要技术建议。
目 录概要.....................................................................................................................................2电路设计 基本电路................................................................................................................2 传感器故障............................................................................................................3 加热过程中的报警预防......................................................................................3 报警延迟电路.......................................................................................................3印刷电路板和壳体设计 传感器的位置依赖性...........................................................................................3 快速响应之壳体设计 (4)制造工艺 传感器操作和保管...............................................................................................4 印刷电路板装配...................................................................................................4 传感器装配............................................................................................................4 预热...................................................................................................4 校正........................................................................................................................5 最终装配................................................................................................................6 气体调校................................................................................................................6 成品的保管 (6)采用TGS681x的可燃气体检测器应用手册重要提示：费加罗传感器的使用条件将因不同客户的具体运用不同而不同。
日本费加罗FIGARO TGS5042民用一氧化碳传感器
Technical Information for Carbon Monoxide SensorsF igaro’s TGS5042 is a battery operable electrochemical sensor which offers several advantages over traditional electrochemical sensors. Its electrolyte is environmentally friendly, it poses no risk of electrolyte leakage, can detect concentrations as high as 1% CO, operates in a range from -5˚ and +55˚C, and it has lower sensitivity to interference gases. With a long life, good long term stability, and high accuracy, this sensor is the ideal choice for CO detectors with digital display. OEM customers will find individual sensors data printed on each sensor in bar code from, enabling users to skip the costly gas calibration process and allowing for individual sensor tracking. TGS5042 utilizes a standard AA battery-sized package.S p e c i f i c a t i o n s P a g e Features..................................................................................................2 Applications...............................................................................................2 Structure...........................................................................................2 Basic Measuring Circuit...........................................................................2 Operating Conditions & Specifications...................................................3 Mechanical Strength..............................................................................3 Dimensions...................................................................................................3Operation Principle ......................................................................................................4Basic Sensitivity Characteristics Sensitivity to Various Gases............................................................5 Temperature and Humidity Dependency.............................................5 Gas Response Pattern.................................................................................6 Repeatability.............................................................................6 Influence of Storage...................................................................................6 Normal Operation Test.....................................................................................7 Sensitivity Test...................................................................................7Reliability Interference Gas Test......................................................................................8 Long-Term Stability................................................................................9 Corrosion Test...........................................................................................9 Variable Ambient Temperature Test................................................................9 Humidity Test.............................................................................................10 Stability Tests..................................................................................................11 Sequential Test...........................................................................................11 Dust Test................................................................................................12 Water Loss Test.......................................................................................12Marking ..........................................................................................................................12Cautions .......................................................................................................13Appendix . (14)a n I S O 9001 c o m p a n yIMPORTANT NOTE: OPERATING CONDITIONS IN WHICH FIGARO SENSORS ARE USED WILL VARY WITH EACH CUSTOMER’S SPECIFIC APPLICATIONS. FIGARO STRONGLY RECOMMENDS CONSULT-ING OUR TECHNICAL STAFF BEFORE DEPLOYING FIGARO SENSORS IN YOUR APPLICATION AND, IN PARTICULAR, WHEN CUSTOMER’S TARGET GASES ARE NOT LISTED HEREIN. FIGARO CANNOT ASSUME ANY RESPONSIBILITY FOR ANY USE OF ITS SENSORS IN A PRODUCT OR APPLICATION FORWHICH SENSOR HAS NOT BEEN SPECIFICALLY TESTED BY FIGARO.TGS5042 is a UL recognized component in accordance with the requirements of UL2034. Please note that component recognition testing has confirmed long term stability in 15ppm of carbon monoxide; other characteristics shown in this brochure have not been confirmed by UL as part of component recognition.1. Specifications1-1 Features* Battery operable* High repeatability/selectivity to carbon monoxide * Linear relationship between CO gas concentration and sensor output* Simple calibration* Long life* UL recognized component* Meets UL2034, EN50291, and RoHS requirements 1-2 Applications* Residential and commercial CO detectors* CO monitors for industrial applications* Ventilation control for indoor parking garages* Fire detection1-3 StructureFigure 1 shows the structure of TGS5042. The gas sensing layer is sandwiched between a stainless steel washer (counter electrode) and a stainless steel cap (working electrode), together with gas diffusion control stainless film and backing layers. This assembly is placed in the compartment of the stainless steel can. Water is stored in the bottom compartment and a charcoal filter is installed inside the stainless steel cap.1-4 Basic measuring circuitF igure 2 shows the basic measuring circuit of TGS5042. The sensor generates a minute electric current which is converted into sensor output voltage (Vout) by an op-amp/ resistor (R1) combination.Figaro recommends the following electrical parts:R1 : 1MΩC1 : 1µFIC : AD708An additional resistor or F ET is required to prevent polarization of the sensor when circuit voltage is off. NOTE: When voltage is applied to the sensor output terminal, the sensor may be damaged. Voltage applied to the sensor should be strictly limited to less than ±10mV.1-5 Operating conditions & specifications (Table 1)Figure 1 - Sensor structureFigure 2 - Basic measuring circuit(Including equivalent circuit)Cap /Working electrodeVoutNOTE 1: Sensor output in air under operating conditionsNOTE 2:If the water in the reservoir should freeze very rapidly (typically occurs only under artifically created conditions), irreversible change to sensor characteristics would occur. To avoid this risk, the sensor is recommended to be positioned with its cap (working electrode) facing up. NOTE 3: Please contact Figaro for more information if the required temperature range would exceed the specified limits.Table 1 - Operating conditions and specifications1-6 Mechanical strengthThe sensor shall have no abnormal findings in its structure and shall satisfy the above electrical specifications after the following performance tests: Withstand force -withstand force of 10kg (cap from metal can) along a vertical axisVibration - frequency--10~500Hz (equiv. to 10G), duration - 6 hours, x-y-z directionShock - acceleration-100G, repeat 5 times 1-7 Dimensions (see Fig. 3)Figure 3 - DimensionsAll sensor characteristics shown in this brochu re represent typical characteristics. Actu al characteristics vary from sensor to sensor and from production lot to production lot. The only characteristics warranted are those shown in the Specification.NOTE: The sensor can be supplied with lead pins. Please refer to the Appendix for detailsTop viewBottom viewSide view2. Operation PrincipleThe electrolyte of TGS5042 is a very low concentra-tion of mixed/prepared alkaline electrolyteconsisting of KOH, KHCO 3, and K 2CO 3. Themixed alkaline electrolyte acts as a buffer solution with a pH value maintained between 7~10. When CO passes through the backing layer and reaches to the working electrode, electrons are generated resulting from the reaction between CO and anionsin the electrolyte such as OH -, HCO 3-, and CO 32-(see equations 1a~1c ). By creating a short circuitbetween the working and counter electrodes with external wiring, electrons move to the counter electrode through the external wiring. At that point, the consumed anions in the electrolyte at the working electrode are replenished and move to the electrolyte by the reaction of CO 2, water, and electrons as shown in equations 2a~2c. The total reaction is expressed as shown in equation 3.A linear relationship exists between the sensor'selectric current and CO concentration (see equation 4). By calibrating the sensor with a known concentration of CO gas, the output current of the sensor can then be used to quantitatively determine CO concentration.Since, unlike conventional dry batteries, there is no consumption of active materials or of the electrodes, TGS5042 possesses excellent long-term stability for its output signal and enables maintenance-free operation. Furthermore, the sensor's self-generating output current makes it ideal for usage in battery-operated CO detectors.Figure 4 - Operation principleFigure 5 - Schematic diagram of TGS5042operating principleSeparator immersed in liquid alkaline electrolyteWorking electrode (Anodic reaction)CO + 2OH - → CO 2 + H 2O + 2e - (equation 1a )CO + 2HCO 3- → 3CO 2 + H 2O + 2e - (equation 1b )CO + CO 32- → 2CO 2 + 2e - (equation 1c )Counter electrode (Cathodic reaction)1/2O 2 + H 2O + 2e - → 2OH - (equation 2a ) 1/2O 2 + 2CO 2 + H 2O + 2e - → 2HCO 3- (equation 2b ) 1/2O 2 + CO 2 + 2e - → CO 32- (equation 2c )Total reactionCO + 1/2 O 2 → CO 2 (equation 3)Theoretical output current valueI = F x (A/σ) x D x C x n (equation 4) where :F : Faraday constant A: Surface area of diffusion filmD: Gas diffusion co-efficient C: Gas concentration σ: Thickness of diffusion filmn: Number of reaction electrons深圳市深国安电子科技有限公司3. Basic Sensitivity Characteristics 3-1 Sensitivity to various gasesF igure 6 shows the sensor’s sensitivity to various gases. The Y-axis shows output current (Iout/µA) in each gas. The output current is linear to CO concen-tration, with a deviation of less than ±5% in the range of 0~500ppm. Cross sensitivity data for other gases than those in Figure 6 are tabulated in Table Y.3-2 Temperature and humidity dependencyF igure 7a shows the temperature dependency of TGS5042 under a constant humidity of 50%RH. The Y-axis shows the ratio of output current in 400ppm of CO at various temperatures (I) to the output current in 400ppm of CO at 20˚C/50%RH (Io). Temperature dependency is based on the difference in the catalytic reaction rate on the electrodes, and it can be simply compensated by utilizing a thermistor. This linear relationship between I/Io and CO concentration is constant regardless of CO concentration range, according to the sensor's operating principle.F igure 7b shows the humidity dependency of TGS5042 under constant temperatures of 20˚C and 50˚C. The Y-axis shows the ratio of output current in 400ppm of CO at various relative humidities (I) to the output current in 400ppm of CO at 20˚C/50%RH (Io). This data demonstrates that humidity dependency is negligible as temperature varies.Figure 6 - Sensitivity to various gasesFigure 7a - Temperature dependency at 400ppm CO/50%RH(Io=sensor output current at 20˚C)Figure 7b - Humidity dependency at 400ppm CO(Io=sensor output current at 50%RH)0.00.51.01.52.020406080100Relative Humidity (%)Note : The figures in this table are typical values and should not be used as a basis for cross calibration. Cross sensitivity for various gases may not be linear and should not be scaled. All data based on a 4 minute exposure. For some gases, filter saturation and gas breakthrough mayoccur if gas is applied for a longer time period.0.00.51.01.52.0-10102030405060Temperature (˚C)3-3 Gas response patternF igure 8 shows the gas response pattern of the output signal when the sensor is placed into 30, 70, 150 and 400ppm of CO and then returned to normal air. The response time to 90% of the saturated signal level is within 60 seconds, and the recovery of the signal back to 90% of the base level is within 120 seconds. This data demonstrates that TGS5042 possesses sufficient response speed for meeting UL requirements for CO detectors.3-4 RepeatabilityF igure 9 shows the pattern of the output signal when the sensor is repeatedly exposed to 400ppm of CO at a constant interval of 240 seconds. The data demonstrates extremely high reproducibility of the output signal, the deviation being less than ±5%.3-5 Influence of storageF igure 10 shows the initial action of the sensor's output current signal in fresh air. F or the purpose of this test, sensors were stored for more than six months under two separate conditions between the working and counter electrodes: in short-circuited condition, and in open-circuited condition. The chart illustrates the behavior of sensor output current for each group just after installation into the operating circuit. The output current signal of sensors stored in a short-circuited condition reaches its saturated level quickly, while those stored with an open-circuit exhibit much slower behavior. Since sensors are shipped in an open-circuit condition, stabilization time of one hour (typical) is recommended. If an anti-polarization circuit is used (see Item 2-5 in Application Notes for TGS5042), placing the sensor onto the pcb for one hour should be sufficient to stabilize the output. If no anti-polarization circuit is used, placing the sensor into the detector circuit and powering the circuit for about one hour should be sufficient to stabilize sensor output.Figure 8 - Response patternFigure 9 - Repeatability (in 400ppm of CO)0.00.20.40.60.81.00500100015002000Time (sec.)-0.20.00.20.40.60.81.00500100015002000Time (sec.)Figure 10 - Influence of storage(in fresh air)Figure 11a shows the result of the “Normal Operation Test” required by UL2034, Sec. 35.3 where the sensor is exposed to 600ppm of CO for 12 hours at 20˚C/40%RH. Stable output current signal can be seen throughout the exposure.In addition, F igure 11b shows the CO sensitivity characteristics of the sensor before, during, and after the Normal Operation Test, demonstrating that TGS5042 is hardly influenced by exposure to high concentrations of CO.3-7 Sensitivity testFigure 12a shows the results of the “Sensitivity Test” as required by UL2034, Sec. 38. Under this test, the sensor was exposed to 30, 70, 150 and 400ppm of CO at 20˚C/40%RH. The period of exposure was varied by concentration, corresponding with the maximum time in which a CO detector should generate an alarm for the subject concentration. Throughout the test exposures, TGS5042 displayed a reasonable and stable output current signal.Figure 11a - Normal operation test (CO 600±30ppm for 12 hours at 20˚C/40%RH) 0.00.51.01.5Figure 11b - Normal operation test(20˚C/40%RH)0.20.40.60.81Figure 12a - Sensitivity test(20˚C/40%RH)In addition, Figure 12b indicates the CO sensitivity characteristics of the sensor before, during, and after the Sensitivity Test, demonstrating the excellent reproducibility of TGS5042's CO sensitiv-ity characteristics.4. ReliabilityT ests conducted in this section demonstrate that TGS5042 can meet the requirements of various testing standards without incurring adverse long term effects from such tests.4-1 Interference gas testFigure 13a shows the results of testing the TGS5042 sensor for durability against various interference gases as specified by UL2034, Sec. 39. The test was conducted by exposing the sensor to each gas shown in Figure 13a (starting with CO 30ppm) for two hours, then removing the sensor to fresh air for just one hour, and followed by inserting the sensor into the next gas. This procedure was repeated for the full range of gases shown in Figure 13a. Because the sensor is exposed to each of the test gases consecutively, to some small extent the effect of the previous test gas may affect subsequent tests for a short period. However, despite the short-term effects of such gases remaining after exposure, the sensor still shows significantly less sensitivity to each test gas when compared to 30ppm of CO, and CO sensitivity remains unaffected.In addition, F igure 13b shows the CO sensitivity characteristics of the sensor before and after this test, further demonstrating the excellent reproducibility of the CO sensitivity characteristics of TGS5042, demonstrating its durability against the interference gases listed in the requirements of UL2034, Sec. 39.Fig. 12b - Sensitivity test(20˚C/40%RH)Figure 13a - Interference gas test(20˚C/40%RH)-0.020.020.040.060.08AC O30p pM et h an e500ppB ut a ne300p pH ep t an e500ppE th yl ac et a te200p pI P A200ppC O25000ppN H3100p pE th an ol200p pT ol u en e200ppT ri c hl o ro et h an e200ppA ce t on e200ppC O30p p AFigure 13b - Interference gas test(20˚C/40%RH)深圳市深国安电子科技有限公司4-2 Long-term stabilityigure 14 shows long-term stability data for TGS5042. Test samples were stored in natural clean air under a short-circuit condition and measured at various intervals as dictated by the standard test conditions of UL2034, Sec. 38. The Y-axis shows the ratio of output current in 300ppm of CO at any point in time (I) over output current in 300ppm of CO on the first day of the test (Io). This chart demonstrates very stable characteristics with a variation of less than ±15% for more than 7 years.4-3 Corrosion testTo demonstrate the durability of TGS5042 against corrosion, samples were subjected to test conditions called for by UL2034, Sec.58-Corrosion Test. Over a three-week period, a mixture of 100ppb of H2S, 20ppb of Cl2, and 200ppb of NO2 was supplied to the sensors at a rate sufficient to achieve an air exchange rate of five times per hour. Figure 15 shows the CO sensitivity characteristics before and after exposure in the above conditions, demonstrating that TGS5042 is hardly influenced by such corrosive gases. In addition, the sensor's stainless steel housing did not show any sign of corrosion as a result of this test.4-4 Variable ambient temperature testTo demonstrate the ability of TGS5042 to withstand the effects of high and low temperature, the “Variable Ambient Temperature Test” of UL2034, Sec. 45 was conducted.(1) Operation in high and low temperature test Figure 16a shows the results for the “Operation in High and Low Temperature Test” of UL2034, Sec.45.1. The sensor was exposed to environments of 0˚C/15%RH and 49˚C/40%RH for at least three hours each, with measurements taken before and during the exposure in accordance with the test conditions of UL2034, Sec. 38. By plotting the output current values from these test measurements atop the data taken prior to this test at a constant 50%RH (representing standard temperature dependency), it can be seen that the test data are still in line with data taken at a constant RH. The conclusion which can be drawn is that, regardless of exposure to extremes of temperature and humidity, the sensor's output is not affected by humidity. As a result, TGS5042 can meet the requirements of UL2034, Sec. 45.1 by utilizing a simple temperature compensation method.Figure 14 - Long term stabilityFigure 15 - Durability against corrosionFigure 16a - Operation in high and low temperature (all data at 50%RH except Sec. 45.1 test points) 0.00.51.01.52.02.53.0Time (days)(2) Effect of shipping and storageTo verify the effects of shipping and storage, the sensor was tested under the conditions of UL2034, Sec. 45.2. Test samples in a short-circuited condition were subjected to 70˚C for 24 hours, allowed to cool to room temperature for 1 hour, subjected to -40˚C for 3 hours, and then allowed to warm up to room temperature for 3 hours. Figure 16b shows the CO sensitivity characteristics before and after the test, demonstrating that TGS5042 meets the requirement of UL2034, Sec. 45.2.4-5 Humidity testF igure 17a shows the results of testing the sensor under UL2034, Sec. 46A. The sensor was exposed in an atmosphere of 52±3˚C/95±4%RH for a period of 168 hours, returned to normal air for 2 days, then followed by 168 hours exposure at 22±3˚C/10±3%RH. The data demonstrates the stable characteristics in both low and high humidity conditions.Figure 17b shows data taken prior to the above test at a constant relative humidity of 50%. These curves represent the typical temperature dependency of the sensor. When plotting measurements taken at the environmental extremes specified on UL2034, Sec. 46A (52±3˚C/95±4%RH and 22±3˚C/10±3%RH) onto the temperature dependency curves, it can be seen that measurements taken at these extreme conditions still fall in line with the temperature dependency curve derived prior to testing. The conclusion which can be drawn is that, regardless of exposure to extremes of temperature and humidity, the sensor's output is not affected by humidity. As a result, TGS5042 can meet the requirements of UL2034, Sec. 46A by utilizing a simple temperature compensation method.Figure 16b - Effects of shipping and storageFigure 17a - Humidity testFigure 17b - Humidity test(all data at 50%RH except Sec. 46A test points))4-6 Stability test(1) False alarm testTo show the sensor’s behavior under continuous low level exposure to CO, samples were tested against the procedure detailed in UL2034, Sec.41.1(c)-Stability Test. Test samples were exposed to 30ppm of CO continuously for a period of 30 days under standard circuit conditions. Figure 18 shows the CO sensitivity characteristics before and after the exposure test, demonstrating that detectors using TGS5042 will not give a false alarm as a result of continuous low level CO exposure.(2) Temperature cycle testIn accordance with UL2034, Sec. 41.1(e)-Stability Test, test samples were exposed to ten cycles (<1 hour and >15 minutes) of temperature from 0˚C/100%RH to 49˚C/40%RH. F igure 19 shows CO sensitivity characteristics before and after the cycle test, demonstrating that TGS5042 is hardly influenced by the extreme conditions of the temperature cycle test.4-7 Sequential testIn UL2034, Sec. 41.3, a single lot of sample detectors are to be subjected to the following sequence of tests: Section 38, Section 41.1, Section 39, Section 45, and Section 46A. While TGS5042 meets the requirements of each of these test individually (as shown elsewhere in this brochure), this test is designed to demonstrate the sensor's ability to withstand all of these test when conducted in sequence. Figure 20 shows the results of sequentially testing the same lot of sensors. The good stability of the sensor's output signal indicates that TGS5042 can satisfy the requirements of UL2034, Sec. 41.3-Sequential Test.Figure 18 - False alarm testFigure 19 - Temperature cycle testB ef o re te st i ngA ft e rS ec.38t e stA ft e rS ec.41.1t e stA ft e rS ec.39t e stB ef o re Se c.45.1v ar.am bi e nt t em pt e stA ft e rS ec.45.1v ar.am bi e nt t em pt e st(0˚C)A ft e rS ec.45.1v ar.am bi e nt t em pt e st(49˚C)B ef o re Se c.45.2s hi p pi n g/s to r ag et e stA ft e rS ec.45.2s hi p pi n g/s to r ag et e st(-40˚C)A ft e rS ec.45.2s hi p pi n g/s to r ag et e st(70˚C)B ef o re Se c.46Ah i gh hu mi d it yt e st t es tA ft e rS ec.46A hi g hh um id i ty te st t es tA ft e rS ec.46A lo wh um id i ty te st t es tA ft e rs eq ue nt i al t es tA ft e rS ec.35.3t e stFigure 20 - Sequential test4-8 Dust testTo judge the effect of dust contamination on TGS5042, approximately 2 ounces (0.06 kg) of cement dust, capable of passing through a 200 mesh screen, was circulated for 1 hour by means of a blower, enveloping the sensor in the test chamber. Air flow was maintained at an air velocity of approximately 50 fpm (0.25 m/s) at 20˚C/40%RH. Figure 21 shows the sensor's CO sensitivity characteristics before and after the dust exposure test. This data demonstrates that the dust test of UL2034, Sec. 53 has a negligible effect on CO sensitivity.4-9 Water loss testF or evaluating the life expectancy of TGS5042 from the viewpoint of its water reservoir (which prevents the electrolyte from drying up), the weight loss of TGS5042 was periodically measured when stored at 20˚C/40%RH and 70˚C/5%RH respectively. F igure 22 demonstrates that the sensor’s weight decreased linearly with time due to evaporation of the water. The rate of water loss under various temperature was related with the water vapor pressure at each temperature. According to calculations based on this rate of water loss and the differences in water vapor pressure in 20˚C and 70˚C, the water (>4.5g initially) will last more than 10 years under natural residential conditions such as 20˚C/40%RH.5. MarkingThe TGS5042 comes with a sticker attached to the sensor housing which contains important information. The one dimensional bar code indicates the sensor's sensitivity (slope) in numeric value as determined by measuring the sensor's output in 300ppm of CO:xxxx = x.xxx nA/ppmIn user readable format, the sensor's sensitivity per ppm (nA) is printed below the one dimensional bar code and the sensor's Lot Number is printed to the left of the sensitivity data. Please note that three decimal places should be added to the sensitivity reading (e.g. 1827 should be read as 1.827 nA/ppm).-0.10-0.08-0.06-0.04-0.020.00020*********Time (days)Figure 22 - Water loss testFigure 21 - Dust test1827Sensitivity to CO (nA/ppm)FIGAROTGS5042(Ex.1827 = 1.827nA/ ppm)Figure 23 - TGS5042 markings(NOTE:UL Mark may appear on shrink tube)6. Cautions6-1 Situations which must be avoided1) Disassembling the sensorUnder no circumstances should the sensor be disassem-bled, nor should the sensor can and/or cap be deformed.2) Contamination by alkaline metalsSensor characteristics may be significantly changed when the sensor is contaminated by alkaline metals, especially salt water spray.3) Exposure to high concentration of basic (non-acidic) gases Sensor characteristics may be irreversibly changed by the exposure to high concentrations of basic gases such as ammonia.4) High temperature exposureAt temperatures of 80˚C or higher, the sensing membrane may deteriorate, resulting in irreversible change of sensor characteristics.5) Contact with waterSensor characteristics may be changed due to soaking or splashing the sensor with water.6) Application of excessive voltageIf higher than specified voltage is applied to the sensor, breakage may occur or sensor characteristics may drift, even if no physical damage or breakage occurs. Do not use the sensor once excessive voltage is applied.6-2 Situations to avoid whenever possible1) Exposure to silicone vaporsAvoid exposure of sensor where silicone adhesives, hair grooming materials, or silicone rubber/putty may be present. Silicone vapors may cause clogging of the gas diffusion route.2) Dew condensationIf severe dew condensation occurs for a long period inside of the sensor or on the sensor surface, it may cause clogging of gas diffusion route or deterioration of the sensing membrane. Mild dew condensation which occurs in normal indoor air would not cause any significant damage.3) Storage in sealed containerDo not keep the sensor in a sealed containers such as sealed bag. Due to ambient temperature change, dew condensation may occur inside the sensor if the sensor is stored in this manner.4) FreezingWhen subjected to temperatures below 0˚C, it is possible that the water in the reservoir may freeze. Since water volume will expand when freezing, the sensor can may undergo some deformation. Care should be taken in the design of the detector to ensure that the sensor is not placed too close to other components or the circuit pattern on a PCB, as such deformation may cause the sensor to come in contact with these items. In addition, if the freezing process were to occur very rapidly, the sensor will undergo irreversible change in its characteristics. To avoid this risk, it is recommended that the sensor be positioned with the cap (working electrode) facing up (for more information, refer to Item 3-1 Position Dependency of the Sensor in the document Application Notes for TGS5042).5) Exposure to hydrogen sulfide or sulfuric acid gasIf the sensor is exposed to hydrogen sulfide or sulfuric acid gas, sensor components such as the gas diffusion film, can, and cap may be corroded, resulting in the sensor damage.6) Vibration and shockVibration and shock may cause an open or short circuit inside the sensor.7) Dust and oil mistExtremely high concentrations of dust or oil mist may cause clogging of the sensor's internal structure. When such conditions are expected to be encountered, installation of an external air filter is recommended.8) Flux for solderingManual soldering is recommended since high concen-trations of flux may affect sensor characteristics when the sensor is soldered by wave soldering. When wave soldering is used, a test should be conducted before production starts to see if there would be any influence to sensor characteristics. Please refer to Item 5-3 of Application Notes for TGS5042 for advice on manual soldering conditions. 9) Exposure to organic vaporsIf the sensor is exposed to organic vapors such as alcohols, acetone, or volatile oils, these gases may adsorb on the sensor surface, resulting in temporary sensor drift.6-3 Additional cautions for installationThis sensor requires the existence of oxygen in the operating environment to function properly and to exhibit the characteristics described in this brochure. The sensor will not operate properly in a zero oxygen environment. Figaro USA Inc. and the manufacturer, Figaro Engineering Inc. (together referred to as Figaro) reserve the right to makechanges without notice to any products herein to improve reliability, functioning or design. Information contained in this document is believed to be reliable. However, Figaro does not assume any liability arising out of the application or use of any product or circuit described herein; neither does it convey any license under its patent rights, nor the rights of others.F igaro's products are not authorized for use as critical components in life support applications wherein a failure or malfunction of the products may result in injury or threat to life.。
五种点型探测器通用说明书-20130702
二段报警指示灯（红色）
红外接收头 使用红外遥控器编码、标定 (详见遥控器使用说明书)。
-3-
探测器上电约需4分钟的暖机时间，此时连接的控制器报 故障为正常状态，4分钟后即可进入正常监视状态。
2.适用于 BJ-86-3A 型
自检按钮
报警蜂鸣器
指示灯 绿色 – 监视 红色 – 报警 黄色 – 故障
约 200g
吸顶或 壁挂
X
标定
约1年
无需标定
-5-
六、安装位置及接线方法
● 在调试时：上电后绿灯闪亮，约 4 分钟后绿灯长亮，为正 常监视状态。红灯亮为泄漏报警，黄灯亮为故障报警。 探测器在防爆场所，需采用隔爆软管连接（防爆活接头
G3/4″-6g）。使用不同气体的用户，探测器的安装位置也不同。 a. 当燃气比空气轻（如天然气、氢气等）时，请用户将探测器 安装在距屋顶30cm处 。 b.当燃气比空气重（如液化石油气、酒精蒸气、苯蒸气等）时， 请用户将探测器安装在距地面30cm处 。 c.探测器的安装依需要可安装在墙壁上（如图所示）。 d.探测器检测面积及安装数量因房间大小，通风状况而异。 在 不通风场所，探头距易漏源垂直距离2米以内，平均10～20 平方米安装一个探测器 。 e.如安装在复杂环境或特殊场所，请用户与代理店联系 。 f.如安装在气站、气场则另有说明，请用户与代理店联系。
感谢您使用天津费加罗电子有限公司的可燃气体探测器。 万一发生燃气泄漏，则有火灾、爆炸的危险。 本探测器可提前通知您，以便及时采取相应的措施。 愿本探测器忠实地守卫着您的生命财产安全。
一、标记说明
为了您能正确使用探测器，对您的生命财产防患于未然， 本说明书中使用了一些标记。请在了解这些标记的基础上仔 细阅读本说明书。
TGS3870技术资料
TGS3870 技术资料
CH4 1000ppm CH4 3000ppm CH4 9000ppm
敏感元件 底座
传感器底座的顶部视图
引线管脚
图 1－传感器结构
传感器底座是由 PBT（聚对苯二甲酸丁二醇酯）制成的，传感器帽是由镀镍钢制成。帽的上面开放部分 由一双层 100 目不锈钢网（SUS316）覆盖，而且传感器帽里还有一个活性炭过滤器用来减少干扰气体的 影响。
图 2－时序图
——————————————————————————————————————————————————
机械强度： 传感器在经过下列性能试验后应在结构上无异常，并能 满足前面所列电学规格： 拔出力 （管脚从底座上）--压入力在每个方向上均>5kg 振 动--垂直振幅=1.5mm，
频率=10～500Hz， 持续=3 小时，方向=x,y,z（各方向） 冲 击--加速度-100G，重复 5 次
单位：mm
管脚连接： 1：公共端（－） 2：传感器电极（＋） 3：加热器（＋）
TGS3870 技术资料
甲烷和一氧化碳复合传感器技术资料
费加罗 TGS3870 传感器是一 种新型的微珠式金属氧化物 半导体。传感器的微型尺寸和 循环加热的工作方式使其单 一的敏感元件同时对一氧化 碳和甲烷都有很高的选择性， 而且功耗很低。
规格
页码
特点··········································2
费加罗检测空气质量VOC传感器TGS2600
特征: ★低 功耗,5V供电 ★对气态空气污染物灵敏度高 ★长寿命, 低成本 ★小尺寸， 应用电路简单
应用： ★ 空气净化器 ★ 新风系统，智能家居 ★ 空气质量检测 ★ １８０７＊０４３０＊９８０，ｚｈｅｎｇ＿ｘｉｎｇｈｕｉ＠１６３．ｃｏｍ
敏感元件由一个以金属铝做衬底的金属氧化物敏感芯片 和一个完整的加热器组成。在检测气体时, 传感器的传导率 依赖于空气中气体浓度的变化。 一个简单的电路能将该传导 比率的变化转化成对应于气体浓度变化的输出信号.
条件
VH = 5.0±0.05V DC
测试前器阻抗通过以下公式计算：
引脚连接： (1) 加热极 (2) 传感电极(-) (3) 传感电极(+) (4) 加热极
所有显示在这个表格里的传感器特性代表着传感器的典型特性。实际特性传感器与传感器之间 又有所不同。唯一可以保证的特性就是上述规格表里的那些。
模块型号tgs2600b00传感元件类型d1标准封装to5金属目标气体空气污染物典型检测范围130ppmh2标准电路条件加热电压vh5002vdcac直交流电路电压vc5002dcps15mw负载阻抗rl变量045标准测试条件下的电气特性加热器阻rh室温条件下大约83ih424ma加热器消耗功率ph210mwvh50vdc传感器阻rs10k90k?在空气中灵敏度0306空气氢气标准测试条件测试气体条件在202c655rh的正常空气电路条件vc50001vdcvh50005vdc测试前化时间功率消耗通过以下公式计算
下图所示为典型灵敏度特性。所有数 据都采集于标准测试条件下 Y 轴表示传感 器电阻变化率（RS/R0），RS 、R0 定义如 下： RS=传感器在不同气体浓度下的阻值 R0= 传感器在清新空气中的阻值
费加罗传感器
费加罗传感器广州南创陈工FIGARO是一家专业生产半导体气体传感器的公司，1962年发明全球第一款半导体产品，目前全球第一。
FIGARO的产品远销38个国家，在多个国家设立了分支机构或办事处，生产基地遍布美洲、东欧、中国等地；并在中国设立了广州南创传感器事业部，可为用户的实验和生产提供最佳的服务与解决方案。
半导体气体传感器采用金属氧化物半导体烧结工艺，对被检测的检测气体具有灵敏度高、响应时间短、成本低、长期稳定性好等优点。
我们的产品包括可燃气体、有毒气体、空气质量、一氧化碳、二氧化碳、氨气、汽车尾气、酒精等传感器元件、传感模块等，以及各种气体传感器的配套产品。
目前已经被广泛应用于家用燃气报警器、工业有毒气体报警器、空气清新机、换气空调、空气质量控制、汽车尾气检测、蔬菜大棚、酒精检测、孵化机械等。
费加罗传感器KE-25KE-50信息费加罗传感器KE-25KE-50性能：测量范围：0-100％O2精度：氧气传感器KE-25：±1％（全量程）；氧气传感器KE-50：±2％（全量程）工作温度：5～40℃储存温度：-20～＋60℃响应时间：KE-25：14±2秒；KE-50：60±5秒初始输出：KE-25：10.0–15.5mv；KE-50：47.0-65.0mv期望寿命：KE-25：5年；KE-50：10年费加罗传感器KE-25KE-50特性：长寿命（KE-25-5年，KE-50-10年）不受CO2，CO，H2S，NOx，H2影响低成本，在常温下工作信号输出定，无需外部电源不需加热以上费加罗传感器技术参数以《OIML60号国际建议》92年版为基础，最新具体变化可查看《JJG669—12FIGARO广州南创传感器事业部检定规程》产品特性描述：氧气传感器KE-25KE-50属于半导体气体传感器不受CO2，CO，H2S，NOx，H2影响，氧气传感器KE-25KE-50低成本在常温下工作信号输出定，无需外部电源不需加热；精度氧气传。
日本费加罗催化燃烧可燃气体传感器TGS6812
日本费加罗催化燃烧可燃气体传感器TGS6812 Technical Information for Hydrogen Gas SensorsThe Figaro TGS6812 catalytic type gas sensor can detect levels of hydrogen up to 100%LEL. This sensor features high accuracy, good d urability and stability, quick response, and linear output. This sensor can detect hydrogen as well as methane and LP gas, making it an excellent solution for monitoring gas leakage from stationary fuel cell systems which transform combustible gases into hydrogen.P a g e Basic Information and SpecificationsFeatures (2)Applications (2)Structure..........................................................................2 Basic Measuring Circuit....................................................2 Circuit & Operating Conditions.. (3)Specifications (3)Dimensions...............................................................................3Typical Sensitivity Characteristics Sensitivity to Various Gases................................................4 Temperature Dependency...........................................................4 Humidity Dependency...........................................................4 Heater Voltage Dependency.............................................5 Gas Response....................................................................................5 Initial Action........................................................................5Reliability Long Term Characteristics.............................................................6 Durability to Hydrogen.......................................................................6 Durability to Sulphur Dioxide...........................................................6 Durability toNitrogen Dioxide.........................................................7 Durability to HMDS....................................................................7 Effects of Air Flow.............................................................................7Cautions (8)a n I S O 9001 c o m p a n yIMPORTANT NOTE: OPERATING CONDITIONS IN WHICH FIGARO SENSORS ARE USED WILL VARY WITH EACH CUSTOMER’S SPECIFIC APPLICATIONS. FIGARO STRONGLY RECOMMENDS CONSULTING OUR TECHNICAL STAFF BEFORE DEPLOYING FIGARO SENSORS IN YOUR APPLICATION AND, IN PARTICULAR, WH EN CUSTOMER’S TARGET GASES ARE NOT LISTED H EREIN. FIGARO CANNOT ASSUME ANY RESPONSIBILITY FOR ANY USE OF ITS SENSORS IN A PRODUCT OR APPLICATION FOR WHICH A SENSOR HAS NOT BEEN SPECIFICALLY TESTED BY FIGARO.1. Basic Information and Specifications 1-1 Features* Linear output * Compact size* Small sensitivity to alcohol* Sensitive to hydrogen, methane, and LP gas * Meets RoHS requirements 1-2 Applications* Hydrogen and combustible gas leak detectors for fuel cell applications1-3 StructureFigure 1 shows the structure of TGS6812. The sensor is comprised of two elements: element (D) which is sensitive to combustible gases, and a reference element (C) which does not have sensitivity to combustible gases. The sensing element (D) is made of alumina doped with catalysts, while the reference element (C) is made of alumina. Both coils are made of Pt wire,and the wires of both elements (D) and (C) are connected to nickel pins No. 2 & 3 and No. 1 & 4 respectively. The sensor base and cap are made of reinforced Polybutylene Terephthalate (PBT). The upper opening in the cap is covered with a double layer of 100 mesh stainless steel gauze (SUS316). The TGS6812 utilizes a zeolite filter inside the cap for reducing the influence of interference gases.1-4 Basic measuring circuitThe T GS6812 i s c omprised o f t wo e lements: 1) e lement (D) which is sensitive to combustible gases and 2) a reference element (C) which is not sensitive to combustible gases. These elements are installed into a “Wheatstone Bridge”. A variable resistor should be adjusted so that the bridge will produce a stable baseline signal when in an environment free of combustible gases. When combustible gases are present, they will be combusted on the detecting element, causing its temperature to rise. Accordingly the resistance of this element will increase. This results in an “out-of-balance” signal across the bridge and a corresponding change in output voltage which can be measured.Fig. 1 - Sensor structureFig. 2 - Basic measuring circuitTop viewSide viewu/m = mmCapBottom viewBaseDetector sideCompensator side1-4 : Compensator 2-3 : Detector1-5 Circuit & operating conditionsThe ratings shown below should be maintained at all times to insure stable sensor performance:1-6 Specifications NOTE 1Mechanical Strength:The sensor shall have no abnormal findings in its structure and shall satisfy the above electricalspecifications after the following performance tests: Vibration - Drop test -frequency:10~150H z, accel-eration: 2G, duration:10 times, direction: three dimensions drop onto a cement floor from a height of 250mm, repeated 5 times NOTE 1:Sensitivity characteristics are obtained under the following standard test conditions:(Standard test conditions)Temperature a nd humidity: 20 ± 2?C, 65 ± 5% RH Circuit conditions:V H = 3.0±0.05V AC/DC Preheating period: 30 seconds or more under standard circuit conditions 1-7 Dimensions Fig. 3 - Sensor dimensionsAll sensor characteristics shown in this brochurerepresent typical characteristics. Actualcharacteristics vary from sensor to sensor andfrom production lot to production lot. The only characteristics warranted are those shown inthe Specification table above.-101020304050020*********Relative humidity (%RH)2-2 Temperature dependencyFigure 5 shows the temperature dependency of TGS6812 at 65%RH in 10%LEL of methane, LP gas, and hydrogen. Since the temperature dependency of element (D) is compensated by element (C), the temperature dependency of sensor output in the range from -10?C to +70?C is very small.2-3 Humidity dependencyFigure 6 shows the relative humidity dependencyof TGS6812 under constant temperature of 20?C in 10%LEL of methane, LP gas, and hydrogen. This data demonstrates that the humidity dependency of TGS6812 is negligible as humidity varies.Fig. 4 - TGS6812 sensitivity to various gasesFig. 6 - TGS6812 humidity dependency-10010203040502.902.953.003.05 3.10Operating voltage (V)2-4 Heater voltage dependencyFigure 7 shows the change in the sensor output according to variations in the heater voltage (V H ).Note that 3.0±0.1V as a heater voltage must be maintained because variance in applied heater voltage will cause the sensor’s characteristics to be changed from the typical characteristics shown in this brochure.2-5 Gas responseFigure 8 shows the change pattern of sensor output (Vout) for TGS6812 when the sensor is inserted 4000ppm of hydrogen.As these charts display, the sensor’s response speed to the presence of gas is extremely quick.2-6 Initial actionnormal air and later energized in clean air.warm-up process is called “Initial Action”.powering on, it is recommended that an initial delay circuit be incorporated into the detector’s design. This is esp ecially recommended for intermittent-operating devices such as portable gas detectors.Fig. 7 - Heater voltage dependencyFig. 8 - Gas responseFig. 9- Initial action-1010201020-101020period.3-2 Durability to hydrogenconcentration exposure to hydrogen gas. The measurement was taken, the sensor was exposed to 1% of H 2 for over 2000 hours. At each measurement point, the sensor was removed from H 2measuring sensor output.characteristics after exposure to high concentrations of hydrogen.3-3 Durability to sulphur dioxideFigure 12 shows the effect on TGS6812 of exposure to SO 2. The initial point of the graph shows the value of sensor output prior to SO 2 exposure. After the initial measurement was taken, the sensor was exposed to 25ppm of SO 2 for over 2400 hours in total. At each measurement point, the sensor was removed from SO 2 and energized in normal air for 10 hours prior to measuring the sensor output.The data demonstrates that TGS6812 shows stable characteristics after exposure to SO 2.Fig. 11 - Durability to hydrogenFig. 12 - Durability to SO 2-101020-101020characteristics after exposure to NO 2. 3-5 Durability to HMDSFigure 14 shows the effect on TGS6812 of exposure to HMDS.The initial point of the graph shows the value of sensor output prior to HMDS exposure. After the initial measurement was taken, the sensor was exposed to 10ppm of HMDS for one hour in total. At each measurement point, the sensor was removed from HMDS and energized in normal air for 1 hour prior to measuring the sensor output.This data demonstrates that TGS6812 shows stable characteristics after exposure to HMDS.3-6 Effects of Air FlowTable 1 shows how the sensor is affected by airflows (refer to Fig. 15 for illustration of airflows in Table 1). This data demonstrates that there is no significant influence on the sensor by an air flow of 3.1 meters/sec.Fig. 14 - Durability to HMDSFig. 15 - Air flow testing direction (ref. Table 1)Table 1 - Effects of air flow on output voltage4 Cautions on Usage of Figaro Gas Sensors4-1 Situations which must be avoided1) Exposure to silicone vaporsIf silicone vapors adsorb onto the sensor’s surface, the sensing material will be coated, irreversibly inhibiting sensitivity. Avoid exposure where silicone adhesives, hair grooming materials, or silicone rubber/putty may be present.2) Highly corrosive environmentHigh density exposure to corrosive materials such as H2S, SOx, Cl2, HCl, etc. for extended periods may cause corrosion or breakage of the lead wires or heater material.3) Contamination by alkaline metalsSensor drift may occur when the sensor is contaminated by alkaline metals, especially salt water spray.4) Contact with waterSensor drift may occur due to soaking or splashing the sensor with water.5) FreezingIf water freezes on the sensing surface, the sensing material would crack, altering characteristics.6) Application of excessive voltageIf higher than specified voltage is applied to the sensor, the lead wires and/or sensor elements may be damaged or sensor characteristics may drift, even if no physical damage or breakage occurs.7) Operation in zero/low oxygen environment TGS6812 requires the presence of a certain amount of oxygen in its operating environment in order to generate a combustion reaction of gas on the sensor’s surface. It cannot properly operate in a zero or low oxygen content atmosphere.8) Excessive exposure to alcoholIf TGS6812 is exposed to high concentrations of alcohol (such as 10,000ppm or more) for a long period, the filter may become saturated. In this case, the sensor would show a lower resistance in alcohol than indicated in Figure 4.9) VibrationExcessive vibration may result in zero drift or cause the sensor or lead wires to resonate and break. Usage of compressed air drivers/ultrasonic welders on assembly lines may generate such vibration, so tests should be conducted to verify that there will be no influence on sensor characteristics.10) ShockZero drift and breakage of lead wires may occur if the sensor is subjected to a strong shock. To avoid shock, please keep the sensor in the original packing foam during storage.4-2 Situations to be avoided whenever possible1) Water condensationLight condensation under conditions of indoor usage should not pose a problem for sensor performance.H owever, if water condenses on the sensor’s surface and remains for an extended period, sensor characteristics may drift.2) Usage in high density of gasSensor performance may be affected if exposed to a high density of gas for a long period of time, regardless of the powering condition.3) Storage for extended periodsWhen stored without powering for a long period, the sensor may show a reversible drift in resistance according to the environment in which it was stored. The sensor should be stored in a sealed bag containing clean air; do not use silica gel. Note that as unpowered storage becomes longer, a longer preheating period is required to stabilize the sensor before usage. 4) Long term exposure in adverse environment Regardless of powering condition, if the sensor is exposed in extreme conditions such as very high humidity, extreme temperatures, or high contamination levels for a long period of time, sensor performance will be adversely affected.5) SolderingIdeally, sensors should be soldered manually.H owever, wave soldering can be done under the following conditions:a) Suggested flux: rosin flux with minimal chlorineb) Speed: 1-2 meters/min.c) Preheating temperature: 100±20?Cd) Solder temperature: 250±10?Ce) Up to two passes through wave soldering machine allowed Results of wave soldering cannot be guaranteed if conducted outside the above guidelines since someFigaro USA Inc. and the manufacturer, Figaro Engineering Inc. (together referred to as Figaro) reserve the right to make changes without notice to any products herein to improve reliability , functioning or design. Information contained in this document is believed to be reliable. H owever, Figaro does not assume any liability arising out of the application or use of any product or circuit described herein; neither does it convey any license under its patent rights, nor the rights of others.Figaro’s products are not authorized for use as critical components in life support applications wherein a failure or malfunction of the products may result in injury or threat to life.flux vapors may cause drift in sensor performance similar to the effects of silicone vapors.。
日本费加罗FIGARO可燃气体传感器 TGS813
Technical Information for Combustible Gas SensorsFigaro TGS 8-series sensors are a type of sintered bulk metal oxide semiconductor wh ich offer low cost, long life, and good sensitivity to target gases while utilizing a simple electrical circuit. Th e TGS813 displays h igh selectivity and sensitivity to LP Gas and methane.PageSpecificationsFeatures..........................................................................2 Applications...................................................................2 Structure..........................................................................2 Basic measuring circuit....................................................2 Circuit & operating conditions.........................................3 Specifications..............................................................................3 Dimensions...............................................................................3Basic Sensitivity Characteristics Sensitivity to various gases................................................4 Temperature and humidity dependency............................5 Heater voltage dependency..........................................................6 Gas response....................................................................................6 Initial action........................................................................7 Long term characteristics.............................................................7Cautions . (8)See also Technical Brochure ‘Technical Information on Usage of TGSSensors for Toxic and Explosive Gas Leak Detectors’.IMPORTANT NOTE: OPERATING CONDITIONS IN WHICH FIGARO SENSORS ARE USED WILL VARY WITH EACH CUSTOMER’S SPECIFIC APPLICATIONS. FIGARO STRONGLY RECOMMENDS CONSULTING OUR TECHNICAL STAFF BEFORE DEPLOYING FIGARO SENSORS IN YOUR APPLICATION AND, IN PARTICULAR, WH EN CUSTOMER’S TARGET GASES ARE NOT LISTED H EREIN. FIGARO CANNOT ASSUME ANY RESPONSIBILITY FOR ANY USE OF ITS SENSORS IN A PRODUCT OR APPLICATION FOR WHICH SENSOR HAS NOT BEEN SPECIFICALLY TESTED BY FIGARO.a n I S O 9001 c o m p a n y1. Specifications 1-1 Features * General purpose sensor for a wide range of combustible gases* High sensitivity to LP gas and methane * Low cost * Long life* Uses simple electrical circuit1-2 Applications* Domestic gas leak detectors and alarms * Recreational vehicle gas leak detectors * Portable gas detectors1-3 StructureFigure 1 shows the structure of TGS813. This sensor is a sintered bulk semiconductor composed mainly of tin dioxide (SnO 2). The semiconductor material and electrodes are formed on an alumina ceramic tube. A heater coil, made of 60 micron diameter wire, is located inside the ceramic tube. Lead wires from the sensor electrodes are a gold alloy of 80 microns in diameter. Heater and lead wires are spotwelded to the sensor pins which have been arranged to fit a 7-pin miniature tube socket.The sensor base and cover are made of Nylon 66, conforming to UL 94H B (Authorized Material Standard). The deformation temperature for this material is in excess of 240˚C. The upper and lower openings in the sensor case are covered with a flameproof double layer of 100 mesh stainless steel gauze (SUS316). Independent tests confirm that this mesh will prevent a spark produced inside the flameproof cover from igniting an explosive 2:1 mixture of hydrogen/oxygen.1-4 Basic measuring circuitFigure 2 shows the basic measuring circuit for use with TGS813. Circuit voltage (Vc) is applied across the sensor element which has a resistance between the sensor’s two electrodes and the load resistor (R L ) connected in series. The sensor signal (V RL ) is measured indirectly as a change in voltage across the R L . The Rs is obtained from the formula shown at the right.Fig. 1 - Sensor structureFig. 2 - Basic measuring circuitVc- V RLV RLRs = x R LFormula to determine RsSensor elementFig. 3 - Sensor dimensions1-5 Circuit & operating conditionsThe ratings shown below should be maintained at all times to insure stable sensor performance:1-6 Specifications NOTE 1Mechanical Strength:The sensor shall have no abnormal findings in its structure and shall satisfy the above electrical specifications after the following performance tests:Withdrawal Force - Vibration - Shock -withstand force > 5kg in eachdirectionfrequency-1000c/min., totalamplitude-4mm, duration-one hour, direction-verticalacceleration-100G, repeated 5timesNOTE 1: Sensitivity characteristics are obtained under the following standard test conditions:(Standard test conditions)Temperature and humidity: 20 ± 2˚C, 65 ± 5% RH Circuit conditions:Vc = 10.0±0.1V AC/DC V H = 5.0±0.05V AC/DC R L = 4.0kΩ ± 1%Preheating period: 7 days or more under standard circuit conditions17ø±0.516.5±0.56.5±0.59.5ø1ø±0.0545˚45˚132645u/m:mm1-7 DimensionsTop viewSide viewBottom view2. Basic Sensitivity Characteristics 2-1 Sensitivity to various gasesFigure 4 shows the relative sensitivity of TGS813 to various gases. The Y-axis shows the ratio of the sensor resistance in various gases (Rs) to the sensor resistance in 1000ppm of methane (Ro).Using the basic measuring circuit illustrated in Figure 2, these sensitivity characteristics provide the sensor output voltage (V RL ) change as shown in Figure 5.NOTE :All sensor characteristics in this technical brochure represent typical sensor characteristics. Since the Rs or output voltage curve varies from sensor to sensor, calibration is required for each sensor (for additional information on calibration, please refer to the Technical Advisory ‘Technical Information on Usage of TGS Sensors for Toxic and Explosive Gas Leak Detectors’).12-2 Temperature and humidity dependencyFigure 6 shows the temperature and humidity dependency of TGS813. The Y-axis shows the ratio of sensor resistance in 1000ppm of methane under various atmospheric conditions (Rs) to the sensor resistance in 1000ppm of methane at 20˚C/65%RH (Ro).under various ambient conditionsTable 1 - Temperature and humidity dependency(typical values of Rs/Ro for Fig. 6)Table 1 shows a chart of values of the sensor’s resistance ratio (Rs/Ro) under the same conditions as those used to generate Figure 6.Figure 7 shows the sensitivity curve for TGS813 to methane under several ambient conditions. While temperature may have a large influence on absolute Rs values, this chart illustrates the fact that effect on the slope of sensor resistance ratio (Rs/Ro) is not significant. As a result, the effects of temperature on the sensor can easily be compensated.For economical circuit design, a thermistor can be incorporated to compensate for temperature (for additional information on temperature compensation in circuit designs, please refer to the Technical Advisory ‘Technical Information on Usage of TGS Sensors for Toxic and Explosive Gas Leak Detectors’).1010Rs (kΩ)102-6 Initial actionclean air.process is called “Initial Action”.circuit be incorporated into the detector’s design (TGS Sensors for Toxic and Explosive Gas Leak Detectors’). This is especially recommended for intermittent-operating devices such as portable gas detectors.2-7 Long-term characteristicsFigure 13 shows long-term stability of TGS813 as measured for more than 8 years. The sensor is first energized in normal air. Measurement for confirming sensor characteristics is conducted under ambient air conditions rather than in a temperature/humidity controlled environment. The cyclic change in sensitivity corresponds to the seasonal changes of temperature/humidity in Japan (peak T/H conditions occur in July, as corresponds with the sensitivity peaks in this chart ). The Y-axis represents the ratio of sensor resistance in 1000ppm of methane on the date tested (Rs) to sensor resistance in 1000ppm of methane at the beginning of the test period (Ro).As this chart illustrates, TGS813 shows stable characteristics over a very long period of time.Fig. 12 - Long term stability(Ro = Rs on day 1)3 Cautions3-1 Situations which must be avoided1) Exposure to silicone vaporsIf silicone vapors adsorb onto the sensor’s surface, the sensing material will be coated, irreversibly inhibiting sensitivity. Avoid exposure where silicone adhesives, hair grooming materials, or silicone rubber/putty may be present.2) Highly corrosive environmentHigh density exposure to corrosive materials such as H2S, SOx, Cl2, HCl, etc. for extended periods may cause corrosion or breakage of the lead wires or heater material.3) Contamination by alkaline metalsSensor drift may occur when the sensor is contam-inated by alkaline metals, especially salt water spray.4) Contact with waterSensor drift may occur due to soaking or splashing the sensor with water.5) FreezingIf water freezes on the sensing surface, the sensing material would crack, altering characteristics.6) Application of excessive voltageIf higher than specified voltage is applied to the sensor or the heater, lead wires and/or the heater may be damaged or sensor characteristics may drift, even if no physical damage or breakage occurs.7) Application of voltage on lead wiresOn six-pin type sensors, if a voltage is applied on the lead wires between pins 1 and 3 and/or pins 4 and 6, this would cause breakage of the lead wires.8) Operation in zero/low oxygen environment TGS sensors require the presence of around 21% (ambient) oxygen in their operating environment in order to function properly and to exhibit characteristics described in Figaro’s product literature. TGS sensors cannot properly operate in a zero or low oxygen content atmosphere.3-2 Situations to be avoided whenever possible1) Water condensationLight condensation under conditions of indoor usage should not pose a problem for sensor performance.H owever, if water condenses on the sensor’s surface and remains for an extended period, sensor characteristics may drift.2) Usage in high density of gasSensor performance may be affected if exposed to a high density of gas for a long period of time, regardless of the powering condition.3) Storage for extended periodsWhen stored without powering for a long period, the sensor may show a reversible drift in resistance according to the environment in which it was stored. The sensor should be stored in a sealed bag containing clean air; do not use silica gel. Note that as unpowered storage becomes longer, a longer preheating period is required to stabilize the sensor before usage. 4) Long term exposure in adverse environment Regardless of powering condition, if the sensor is exposed in extreme conditions such as very high humidity, extreme temperatures, or high contamination levels for a long period of time, sensor performance will be adversely affected.5) VibrationExcessive vibration may cause the sensor or lead wires to resonate and break. Usage of compressed air drivers/ultrasonic welders on assembly lines may generate such vibration, so please check this matter.6) ShockBreakage of lead wires may occur if the sensor is subjected to a strong shock.7) SolderingIdeally, sensors should be soldered manually. For soldering conditions of 8-series gas sensors, refer to Technical Advisory for Soldering 8-type Gas Sensors. 8) PolarityIf the polarity of Vc is reversed during powering, sensor characteristics may temporarily become unstable.15 24 36Figaro USA Inc. and the manufacturer, Figaro Engineering Inc. (together referred to as Figaro) reserve the right to make changes without notice to any products herein to improve reliability, functioning or design. Information contained in this document is believed to be reliable. H owever, Figaro does not assume any liability arising out of the application or use of any product or circuit described herein; neither does it convey any license under its patent rights, nor the rights of others.Figaro’s products are not authorized for use as critical components in life support applications wherein a failure or malfunction of the products may result in injury or threat to life.。
费加罗技研株式会社 EC01 气体传感器评价试验箱 操作使用说明书
１．安全注意事项２．使用注意事项３．部件名称及功能概述４．测试准备５．测试方法６．规格目次欢迎购买使用气体传感器评价试验箱（EC01），对此我们表示由衷的感谢！请在仔细阅读本操作使用说明书后正确使用本产品。
１１２４６８费加罗技研株式会社EC01（气体传感器评价试验箱）操作使用说明书(1)(2)(3)(4)1. 安全注意事项请务必遵守2. 使用注意事项本产品是一种简易型的试验箱。
使用时请仔细盖紧盖板不能留有缝隙。
如果要进行很精确的气体测试时，请选用比本产品气密性更高的试验箱。
测试时如果将类似于气体报警器这样体积较大的设备放入试验箱的话，可能因为试验箱的有效容积减少而导致气体浓度制备出现误差。
由于氨气、VOC 、有机溶剂蒸汽等吸附性很强的气体很容易吸附在试验箱的内壁之上，因此本产品不适用于这些气体的测试用途。
吸附于箱内壁的气体液化后，有可能导致试验箱内的气体浓度下降。
有必要对吸附性很强的气体进行测试时，请选用箱内壁采用了气体不容易附着材质的试验箱，或对箱内壁进行过涂层处理的试验箱。
如果已经向本试验箱内注入了吸附性很强的气体，为了在使用后去除附着的气体，请用酒精擦拭试验箱内部，然后对内部用洁净空气进行长时间换气等的妥善处置。
如果在高温、低温或极度的低湿度与高湿度的室内环境进行测试的话，气体传感器的测定值可能会受到影响。
请在测试前对各型号传感器规格进行确认。
本试验箱没有防爆设计。
请勿在对气体爆炸下限为(LEL) 50％以上浓度的可燃性气体进行测试时使用。
本试验箱无法保证绝对完全的密闭状态。
请勿在对可能危及人身安全的高浓度毒性气体进行测试时使用。
在用于对可燃性气体进行测试时请务必注意防火措施，同时试验箱向外排气时请在可以充分换气的场所进行。
而且，为确保安全，请考虑采取设置气体报警器等措施。
尤其是在用于对毒性气体进行测试的用途时，请务必在能够保证充分换气的场所进行。
另外出于安全考虑，将试验箱中的气体排出时请注意避免人员吸入的同时，请在室外或排风罩内进行操作。
费加罗检测空气质量VOC传感器TGS2600
因为采用小型化芯片，TGS2600 的加热器所需电流仅为 42mA，并且安置于标准 TO-5 封装 中。
检测Ｂ麲空气质量Ｖ Ｏ ＜Ｃ传感器ＴＧ Ｓ２６００
特征: ★低 功耗,5V供电 ★对气态空气污染物灵敏度高 ★长寿命, 低成本 ★小尺寸， 应用电路简单
应用： ★ 空气净化器 ★ 新风系统，智能家居 ★ 空气质量检测 ★ １８０７＊０４３０＊９８０，ｚｈｅｎｇ＿ｘｉｎｇｈｕｉ＠１６３．ｃｏｍ
敏感元件由一个以金属铝做衬底的金属氧化物敏感芯片 和一个完整的加热器组成。在检测气体时, 传感器的传导率 依赖于空气中气体浓度的变化。 一个简单的电路能将该传导 比率的变化转化成对应于气体浓度变化的输出信号.
标准测试 抗
条件下的 加热器电 IH 42±4mA
电气特性 流
加热器消 PH 210mW VH=5.0V DC
耗功率
传感器阻 RS 10K-90 kΩ在空气中
抗
灵敏度 测试气体条件
0.3-0.6
RS (10 ppm,氢气) RS (空气)
在20±2°C, 65±5%RH的正常空气
标准测试 电路条件
VC = 5.0±0.01V DC
RS=清新空气中的传感器在不同 温、湿度条件下的阻值
R0=清新空气中的传感器在 20℃ 及 65%相对湿度下的阻值
灵敏度特性：
温湿度特性：
浓度（ppm）
环境温度（℃）
基本测量电路： 此传感器要求有两个电压输入：加热器电压 VH
TGS2600空气质量传感器(日本费加罗FIGARO)
TGS2600 用于空气污染物检测的气体传感器* 低功耗* 对污染空气有高灵敏度* 使用寿命长、成本低 * 应用电路简单* 体积小特点:应用:* 空气清新机控制* 通风控制* 空气质量监测敏感素子由集成的加热器以及在氧化铝基板上的金属氧化物半导体构成。
如果空气中存在对象检测气体，该气体的浓度越高传感器的电导率也会越高。
仅用简单的电路，就可以将电导率的变化转换成与该气体浓度相对应的信号输出。
TGS2600对极其微弱的空气污染气体具有很高的灵敏度。
像香烟烟雾中存在的氢气或一氧化碳，此传感器可检测到几个ppm 的氢气。
由于实现了小型化，加热器电流仅需42mA ，外壳采用标准的TO-5金属封装。
下图所示为典型的灵敏度特性曲线，均在我公司的标准试验条件下（参见背面）测出。
纵坐标表示传感器电阻比 Rs/Ro ，Rs 与Ro 的定义如下：Rs = 各种浓度气体中的传感器电阻值Ro = 清洁空气中的传感器电阻值下图所示为受温度、湿度影响的典型特性曲线。
纵坐标表示传感器电阻比 Rs/Ro ，Rs 与Ro 的定义如下：Rs = 传感器在清洁空气中各种温/湿度下的电阻值Ro = 传感器在清洁空气中， 温/湿度为20°C / 65% R.H.时的电阻值灵敏度特性:温/湿度特性:Rs/Ro Rs/RoR s /R os /R o规格:结构以及尺寸:管脚连接: 1: 加热器2: 传感器电极 (-) 3: 传感器电极 (+) 4: 加热器功耗值（P S ）可通过下式求出：传感器电阻（R S ）可根据V OUT （V RL ）的测定值用下式求出：(V C - V RL )2R SV C V RLR S = (- 1) x R L P S =在此产品规格书中所显示的都是传感器的典型特性，实际的传感器特性因产品不同而不同，详情请参阅各传感器唯一对应的规格表。
: mm。
- 1、下载文档前请自行甄别文档内容的完整性，平台不提供额外的编辑、内容补充、找答案等附加服务。
- 2、"仅部分预览"的文档,不可在线预览部分如存在完整性等问题,可反馈申请退款(可完整预览的文档不适用该条件!)。
- 3、如文档侵犯您的权益，请联系客服反馈,我们会尽快为您处理(人工客服工作时间：9:00-18:30)。
PRODUCT INFORMATION
Applications:
Features:
TGS 8100 - for the detection of Air Contaminants
The figure below represents typical sensitivity characteristics, all data having been gathered at standard test conditions (see reverse side of this sheet). The Y-axis is indicated as sensor resistance ratio (Rs/Ro) which is defined as follows: Rs = Sensor resistance in displayed gases at various concentrations
Ro = Sensor resistance in fresh air The figure below represents typical temperature and humidity dependency characteristics. Again, the Y-axis is indicated as sensor resistance ratio (Rs/Ro), defined as follows: Rs = Sensor resistance in fresh air at various temperatures/humidities Ro = Sensor resistance in fresh air
at 20°C and 65% R.H.* Indoor air quality monitors * Air cleaners
* Ventialtion control
* Kitchen range hood control
The sensing element is comprised of a sensing chip and an integrated heater formed on a silicon substrate using MEMS technology, and a metal-oxide semiconductor layer formed on the sensing chip. The device is housed in a surface-mount ceramic package. Due to miniaturization of the sensing chip, TGS 8100 requires a heater power consumption of only 15mW, and is suitable for low-power equipment and battery-operated instruments. In the presence of detectable gas, sensor conductivity increases depending on gas concentration in the air. A simple electrical circuit can convert the change in conductivity to an output signal which corresponds to the gas concentration.
The TGS 8100 has high sensitivity to low concentrations of gaseous air contaminants such as cigarette smoke and cooking odors. By utilizing the change ratio of sensor resistance from the resistance in clean air as relative response, human perception of air contaminants can be simulated and practical air quality control can be achieved.
* Surface mount package * Low power consumption
* High sensitivity to cigarette smoke, cooking
odors, and gaseous air contaminants
* Long life * Low cost
Temperature/Humidity Dependency:
Sensitivity Characteristics:
0.01
0.1
1
10
1
10
100
1000
Gas concentration (ppm)
IMPORTANT NOTE: OPERATING CONDITIONS IN WHICH FIGARO SENSORS ARE USED WILL VARY WITH EACH CUSTOMER’S SPECIFIC APPLICATIONS. FIGARO STRONGLY RECOMMENDS CONSULTING OUR TECHNICAL STAFF BEFORE DEPLOYING FIGARO SENSORS IN YOUR APPLICATION AND, IN PARTICULAR, WHEN CUSTOMER’S TARGET GASES ARE NOT LISTED HEREIN. FIGARO CANNOT ASSUME ANY RESPONSIBILITY FOR ANY USE OF ITS SENSORS IN A PRODUCT OR APPLICATION FOR WHICH SENSOR HAS NOT BEEN SPECIFICALLY TESTED BY FIGARO.
Structure and Dimensions:
The value of power consumption (P S ) can be calculated by utilizing the following formula:P S = Sensor resistance (Rs) is calculated with
a measured value of Vout by using the following formula:R S = - R L Specifications: (tentative)
V C x R L Vout
(V C - Vout)2
R S All sensor characteristics shown in this brochure represent typical characteristics. Actual
characteristics vary from sensor to sensor. The only characteristics warranted are those in the Specification table above.
Side view
u/m = mm
Pin connections: 1: Heater
2: Sensor electrode (-) 3: Sensor electrode (+) 4: Heater。