scott_7e_PPT_ch02
亚特兰蒂克MWR系列电动锥头驱动系统说明书
CA D BThe mechatronic systemAA Thanks to a standard drive (9x12 and14x18) , the operator can always find theperfect end fitting for his application.B Operator can always know if a wrench isready to work, and if the tightening wascorrect, by looking at the onboard LEDs.C Thanks to the wireless connection theoperator is free to move around and toaccess bolt location.D The charging cradle is a stable holderand a battery charger, making sure thatthe tools are always ready to perform theirtasks. Shift after shift.E Detailed tightening information isimmediately available on the Focus 60and 61 display.F Tightening data from MWR wrenchesare easily transferred to productiondata collection systems like T oolsNet.Communicating either with the simpleprotocol or with the Atlas Copco OpenProtocol.G With a barcode reader connected to theFocus controller, operator scans an IDnumber and the right job is selected. Alltightening data will automatically includethe scanned ID number.H Intuitive “just a few clicks away” interface.I Production stations can easily implement areal-time feedback in a Live monitor usingTT BLM software.IFEGHMorethan a click!Increase the quality of your joints considerably with the error proofing functionalities of the MWR mechatronic system. Combining the productivity of a click wrench with the traceability of an electronic one, this smart manual fastening system for tightening processes is a good investment. Using the smallest version of this high productive wrench you are able to get access to joints inaccessible for a standard tool. T he online results provide a complete traceability of the tightening process.A b l u e L E D s i g n a l o n t h e w r e n ch g u i d e s t h e o p e r a t o re a s i l y t h r o u g h t h e t i g h t e nin g p r o c e s s .MWR -50MWR wrenchBased on the mechanical “click” wrench, the MWR mechatronic wrench is highly productive. T he clear physical feedback of the “click” makes it easy to handle even for untrained workers, giving you a very short training period.Feedback of the tightening process is clearwith the distinctive “click” of the MWRmechanism in combination with the colored LEDs. If needed the MWR mechatronic system can be completed with the stack lights connected to the Focus controller.Size and performancemakes the MWR wrenches optimal for limited space applications. With all functionalities in a compact size.ProductivityFeedbackSizeM W R -25 (1:1s c a le )MWR-85Feature Focus 60Focus 61 Number of workstations12 Number of wrenches110 Communication Simple Open Protocol Barcode••ToolsNet••Atlas Copco I/O Bus••The MWR-TA measures torque and angle values, reporting problems immediately. Wrong screws or damaged threads are history! Any re-hit is detected making you 100% sure that all the screws in a sequence are properly tightened.T orque and angleThe MWR-S supports batch counting systemsin the production line by transmitting an OK signal. The MWR-S increases ergonomy aspects during tightening processes compared to a Clickwrench with a Microswitch because the signal is transmitted wireless.SwitchThe MWR-T is measuring torque during the entire tightening process. Depending on the limits, the peak value gives the OK/NOK status. Giving you the real torque applied on the joint.T orqueSmart clickThroughout a tightening, the MWR wrench will monitor three important processparameters,, depending on the choosen model. It measures if the right torque is applied, the correct angle is archievedand if the operator releases the tightening at the correct time .The standard software for programming the mechatronic system – T TBLM – enables the planning engineer to set up all the joint, batch and job settings for Focus 60 and 61. You can get a list of all the available Focus 60/61controllers via LAN/Ethernet and get connected to anyone of them to administrate your application from the office.TTBLM offers you a complete overview about the status of each MWR wrench in your plant like battery level, calibration and availability. T he live monitor can display online results from the wrench highlighting status by colors.T ools talk BLMEnd fittingsOpen endOrdering No. 4027 5012 30 4027 5012 31BBHMaß der SchlüsselweiteOpen End with Ratchet function 14x18Connectors for dovetail insertsT ype T orque range Drive Weight kg Length mm Nm ft lb MWR-25 S 5-25 3.7-18.49x120.4461778439 0044 00MWR-50 S 10-507.4-36.99x120.5652348439 0044 01MWR-85 S 17-8512.5-62.79x120.6303078439 0044 02MWR-200 S 40-20029.5-147.514x180.8514198439 0044 03MWR-300 S 60-30044.2-221.214x18 2.58988439 0044 04MWR-25 T 5-25 3.7-18.49x120.4461778439 0044 10MWR-50 T 10-507.4-36.99x120.5652348439 0044 11MWR-85 T 17-8512.5-62.79x120.6303078439 0044 12MWR-200 T 40-20029.5-147.514x180.8514198439 0044 13MWR-300 T 60-30044.2-221.214x18 2.58988439 0044 14MWR-25 T A 5-25 3.7-18.49x120.4461778439 0044 20MWR-50 T A 10-507.4-36.99x120.5652348439 0044 21MWR-85 T A 17-8512.5-62.79x120.6303078439 0044 22MWR-200 T A 40-20029.5-147.514x180.8514198439 0044 23MWR-300 T A60-30044.2-221.214x182.58988439 0044 24Controller Ordering No.Focus 608439 0044 30Focus 618439 0044 31Number of workstations 12Number of administrable MWR 110Wireless wrench communication ••Communication Standard••Communication Open Protocol •Toolsnet communication••TTBLM communication ••Possibility to add protocols •LAN/Ethernet communication ••LAN/Ethernet programming ••Job programming •Batch programming ••Results storage 25.00025.000Languages: English - German ••Multi-unit ••Display ••BNC Antenna••LAN/Ethernet Interface 12Barcode interface ••Accessory-BUS ••Weight (kg)2.52.5Dimensions (mm)147x219x121147x219x121Mechatronic W renchMWR - S MW R - T MW R - TA 4 colored status LED on 3 sides of the wrench•••Tightening time•••Torque measuring••Angle measuring•Doubleclick detection (same screw)••Rehit detection•Observing tightening direction ••Displaying online status •••End fitting length adjustable ••Standard drive (9x12 / 14x18) for different end fittings •••Wireless 868/910 MHz range •••Low power management •••Battery status signalization •••Software Ordering No.TTBLM 1 User License 8059 0981 105 User License 8059 0981 1110 User License 8059 0981 12Plant License8050 0981 13Wrench protection capsOrdering No.MWR protection cap 5PCS (blue) 4027 5022 20MWR protection cap 5PCS (green) 4027 5022 21MWR protection cap 5PCS (red) 4027 5022 22MWR protection cap 5PCS (Colormix) 4027 5022 23MWR protection cap 5PCS (gold) 4027 5022 24MWR protection cap 5PCS (black)4027 5022 25AccessoriesOrdering No.Charging Cradle MWR4027 5022 10Charging Cradle MWR Clips (HD)4027 5026 14MWR Protection Cover 4027 5026 28Setting key MWR/CWR4027 5013 96Recharg. battery NIMH AAA MWR 1.2 V, 1000 mAh4027 5021 01Stacklight ESL -04 Standard 8433 0570 13IO Expander (sealed)8433 0564 45Focus 60/61 Dig. Out Connector 4027 5022 04Antennas Antenna 868 MHz 4027 5022 13Antenna915 MHz 4027 5022 14Cable-Antenna, 2,5 m 868/915 MHz 4027 5022 15Extended Cable-Antenna, 5 m 868/915 MHz 4027 5020 95Cables I/O bus cable 0.5 m 4222 0917 00I/O bus cable 1 m 4222 0917 01I/O bus cable 3 m 4222 0917 03I/O bus cable 5 m 4222 0917 05I/O bus cable 10 m 4222 0917 10I/O bus cable 15 m 4222 0917 15I/O T ermination plug 4222 0443 00Ethernet straight 0.5 m 4222 0754 00Ethernet straight 1 m 4222 0754 01Ethernet straight 3 m 4222 0754 03Ethernet straight 5 m 4222 0754 05Ethernet straight 10 m 4222 0754 10Ethernet straight 15 m 4222 0754 15Ethernet straight 25 m 4222 0754 25Ethernet straight50 m 4222 0754 509833 2017 01 – E N © A t l a s C o p c o B L M , M i l 2019Atlas Copco BLM Milan, Italy 。
2019大一轮高考总复习英语课件：选修7 Unit 2 Robots 精品
5．Athenians willingly __o_b_e_y_e_d___ (obey) the written laws which they themselves passed.(2015·江苏卷)
6 ． Includes a guided tour of Windsor and Hampton Court ， Henry VⅢ’s __f_a_v_o_u_ri_te____ (favour) palace.(2015·全国卷Ⅱ)
[话题佳句]
1．Every home will have a robot. 每个家庭都会有一个机器人。 2．This is the robot of artificial intelligence in my mind. 这就是我心目中的人工智能机器人。 3．Technology of Intelligent Mobile Robot is an important branch robotics. 智能移动机器人技术是机器人研究领域的一个重要分支。 4．The robot can guarantee that he can set the human free from the heavy housework. 机器人能够保证把人类从繁重的家务中解脱出来。 5．Space Robot will play an important role in future space projects. 在未来的空间活动中，空间机器人将要发挥越来越重要的作用。
[佳作欣赏]
In some science fiction blockbusters filmed by Hollywood in America，the robot is described as a kind of machine which wants to control humans and rule the earth in the society of the future.In my opinion，it is impossible for the robot to rule the earth.Firstly the robot is only a kind of machine which has neither thoughts nor feelings.Thus it will not have its own wish or dream at all.Secondly，although the robot can do some work that humans can not do，it is working under the control of humans.That is to say，it is not able to do anything by itself.Thus，the robot will never control the earth.That is just a kind of science fiction.
《自行车头盔设计》课件
颜色不仅影响头盔的外观，还可以提高骑行者在道路上的可见性。
如何选择最适合的风格和颜色
根据个人喜好和骑行需求，选择与自己风格相符的头盔。
生产过程
1
头盔的原型制作
使用计算机辅助设计软件（CAD）制作头盔的三维模型，并进行原型制作。
2
头盔制造流程
从原型到最终产品的生产流程，包括模具制造、材料选择和制造工艺。
结语
自行车头盔设计不仅关乎骑行者的安全，也体现了设计者对用户生命的关注和负责任的态度。展望未来， 头盔设计将不断追求更高的安全性和舒适性。
3
高品质头盔的生产流程
采用先进的技术和严格的质量控制，确保生产高品质的头盔。
用户体验
1 头盔的使用感受
用户对头盔的舒适性、稳定性和通风性进行评估，以便做出改进。
2 头盔的适用性
考虑不同骑行类型和头部尺寸的差异，设计头盔以适应多种使用场景。
3 用户反馈和改进
倾听用户反馈，收集意见，不断改进头盔的设计和性能。
2
使用软质材料，如泡沫和凝胶，提供
舒适和缓冲效果。
3
风洞测试和优化
4
通过风洞测试来研究头盔的气动性能， 并进行优化以提高骑行的舒适性。
骨架设计
设计一个坚固的外部骨架，以保护头 部免受伤害。
外壳设计
考虑外壳的形状、大小和通风孔的位 置，以提供最佳的通风性能。
风格和颜色设计
设计风格介绍
不同的设计风格适用于不同的骑行类型，如公路骑行、山地骑行和城市通勤。
《自行车头盔设计》PPT 课件
自行车头盔设计是一门关乎骑行安全的设计领域。本课件将介绍头盔的材料、 结构、风格和颜色设计、生产过程以及用户体验。
MARQUE SCOTT MTV-70HT TV LCD TFT 色彩用户手册说明书
MARQUE SCOTT REFERENCE MTV-70HT CODIC:. 2553457MANUEL D'UTILISATION134571212121617181920211. Précautions2. Accessoires3. Fonctions4. Utilisation de la télécommande5. Connexion et fonctionnement de base6. Fonctionnement du Menu 6.1 Image 6.2 Système 6.3 Option 6.4 Présélection 6.5 Horloge7. Comment recevoir une image de meilleure qualité8. Guide de dépannage 9. Caractéristiques techniquesTable des matièresEntretienDébranchez tous les câbles de connexion avant de nettoyer votre TVAlcoholBande à double face adhésive pourle SupportAdaptateur secteur Adaptateur pour voiture Câble d'antenne 75TélécommandeCâble A Compartiment pour piles rechargeables(Piles non fournies)FR-31.Antenne télescopique2.CANAL + / Sélection +3.CANAL - / Sélection -4.Indicateur de tension5.Mise sous/hors tension6.MENU12.Haut-parleur13. Prise pour écouteurs14.Entrée DC 12V7.Mode TV / A8.Écran LCD9.VOLUME + / Réglage +10.VOLUME - / Réglage -11.Senseur pour la télécommande18.Support15.Prise pour antenne externe16.Entrée Vidéo17.Entrée AudioFR-4Insertion des piles de la télécommandeTouches CANAL (touches numériques (0-9) et - / - - ): V ous disposez de 255 canaux (1~255) que vous pouvez sélectionner à l'aide des 11 touches “0-9” et “-/--” de la télécommande. Si vous souhaitez sélectionner un canal à un chiffre, saisissez directement le numéro correspondant. Si vous souhaitez sélectionner un canal à deux chiffres, appuyez tout d'abord sur la touche -/--. “--” s'affichera à l'écran. Appuyez alors sur les touchesnumérotées voulues. Si vous souhaitez sélectionner un canal à trois chiffres, appuyez deux fois sur touche -/--. “---” s'affiche alors. Appuyez ensuite sur les touches numérotées voulues.CH / (Sélection Canal)Appuyez sur CH pour sélectionner un numéro de canal supérieur.Appuyez sur CH pour sélectionner un numéro de canal inférieur.VOL +/- (Réglage du volume)Appuyez sur la touche VOL + pour augmenter le niveau de volume.Appuyez sur la touche VOL - pour réduire le niveau de volume.MODE:Appuyez sur cette touche pour sélectionner l'un des 4 modes : UTILISATEUR / DOUX / STANDARD et INTENSEON/OFF (MISE SOUS/HORS TENSION) :Appuyez sur cette touche pour mettre l'appareil hors tension et appuyez de nouveau sur cette touche pour le remettre sous tension. Appuyez également sur cette touche pour quitter le mode Jeu.MENU: Appuyez sur cette touche pour afficher les cinq sous-menus suivants : IMAGE, SYSTEME, OPTION, PRESELECTION et HORLOGE.En mode Jeu, appuyez sur cette touche pour démarrer une partie. Appuyez une deuxième fois pour interrompre la partie.MUTE (SOURDINE) :Appuyez sur cette touche pour couper le son et appuyez de nouveau sur cette touche ou sur VOL+ pour le rétablir.CALL (APPEL) :Appuyez sur cette touche pour afficher les informations relatives au canal en cours de visualisation, par exemple, son numéro, le Système de Couleur et le Système Sonore.FR-6Bouton defixationRemarqueSi vous n'utilisez pas l'antenne externe, vous devez déconnecter le câble de l'antenne car cela affecte la réception de l'antenne télescopique.RemarqueLorsque les écouteurs sont connectés, le son des haut-parleurs est6. Installation et fonctionnement du compartiment pour piles rechargeables :Appuyez avec votre pouce sur le couvercle pour ouvrir le compartiment, comme indiqué dans l'image (1). Insérez-y 10 piles de type AA (LR 06) en respectant la polarité.Image (1)Image (2)Image (5)Replacez le couvercle du compartimentpour piles.Image (6)Insérez l'autre crochet du couvercle métallique dans la fente du socle de la TV , sur le panneauarrière.Image (7)Poussez le couvercle du compartimentpour piles vers le haut et fixez-lefermement.Image (8)Fixez le support en vissant la partie inférieure de la TV .Image (9)L'image (9) montre le support fixé surla TV .Image (10)Branchez la sortie DC du compartiment pour piles à l'entrée de la TV . Placez lecommutateur CHARGE/ POWER sur laposition POWER . La TV est maintenantalimentée par les piles.Image (3)L'image (3) montre les piles insérées dans le compartiment.Image (4)Insérez le crochet du couvercle métalliquedans l'encoche du compartimentImage (11)Rechargement des piles :1. V ous devez utiliser exclusivement des pilesrechargeables.2. Débranchez la sortie DC du compartimentpour piles de la TV .3. Mettez le commutateur CHARGE/POWERen position CHARGE.4. Connectez l'adaptateur secteur à l'entrée DC du compartiment pour piles.Fonctionnement de base1. Branchez l'adaptateur secteur et appuyez sur la touche ON/OFF pour mettre l'appareil sous tension.- L'indicateur de tension est toujours allumé lorsque l'appareil est sous tension.2. Etirez l'antenne télescopique et orientez-la de manière à obtenir la meilleure réception d'image.3. Appuyez sur CH / pour sélectionner le numéro de canal souhaité.4. Appuyez sur les touches VOL +/VOL - pour régler le niveau de volume.5. Appuyez sur la touche ON/OFF pour éteindre la TV .5. L'indicateur de charge rouge s'allume pendant le rechargement.6. Il faut compter entre 8 à 10 heures pour recharger des piles 1800mA~2000mA.7. Débranchez l'adaptateur secteur du compartiment pour piles.Remarque : Après chargement complet, l'autonomie de lecture est d'environ 2 heures et varie selon l'utilisation qui est faite de l'appareil (luminosité de l'écran, volume sonore).1.MENU2.Mode TV/A V3.CANAL +4.CANAL -5.Indicateur d'alimentation6.Mise en Marche/Arrêt7.VOLUME+_8.VOLUME 9.Capteur infra-rouge8. Guide de dépannageLes phénomènes ci-dessous n'indiquent pas nécessairement undysfonctionnement de l'appareil.Vérifiez les causes possibles avant de faire appel à un service technique.Phénomène Causes possiblesPas d'image Pas de son Les piles sont épuisées.L'adaptateur secteur ou l'adaptateur de voiture est mal connecté.V ous utilisez une alimentation inadéquate.Le commutateur de tension est en position OFF.Pas d'image Pas de son Un mauvais canal est réglé.Utilisez le menu Présélection pour effectuer une nouvelle fois une recherche automatique de tous les canaux. V ous réinitialiserez ainsil'emplacement de tous les canaux.Un mauvais Système Sonore est sélectionné. Des écouteurs sont branchés.Le signal est trop faibleRéglez le niveau de luminosité et de contraste. La température ambiante est trop basse.Ajustez la position de l'antenne.Ajustez la position de l'antenne.Le signal est trop faible. Utilisez la fonction REGLAGE FIN dans le menu Présélection pour affiner le réglage.Image sombreSon peu clair ou image instableSuperposition d'images Ajustez la position de l'antenne.Il y a une interférence avec une autre réception.Image inversée ou pivotée Utilisez les flèches directionnelles Haut/Bas, Droite/Gauche dans le menu ou sur latélécommande pour ajuster l'image.Couleurs achromatiques ou instables Le signal est trop faibleUn mauvais Système Sonore est sélectionné. L'appareil subit les interférences d'un moteur automobile, d'un train, d'une ligne à haute tension et d'un tube au néon.Neige。
斯伦贝谢Next培训定向井PPT 02-03 Survey tool and Non-M Tool
Non Magnetic Drill Collars
Magnetic Survey tools require Non Magnetic Drill Collars
▪ “Magnetic” is a generic term covering surveying methods which measure magnetic azimuth.
= 860
Z = 14 ft for typical D&I tool
20 Copyright © 2001 – 2014, Schlumberger. All rights reserved
IF = The calculated interfering field in mico Telsa LP = Pole strength of components below the MWD AE = Predicted azimuth error due to interfering field H = Total magnetic field strength ion gammas Az = Azimuth of well relative to true north I = Inclination of well MD = Magnetic declination Dip = Magnetic Dip angle x = Length of non-magnetic collar above MWD y = Length of MWD collar below D&I sensor point z = Length of MWD collar above D&I sensor point b = Length of non-magnetic collar below MWD c = Length of magnetic material below MWD
liu_ch01
Æ Æ
4
CHAPTER 1. INTRODUCTION AND PRELIMINARIES cij is summable, then
∞ ∞ ∞ ∞
Theorem 1.2.1. If the double series
n m
cij =
(i,j )∈I
m,n→∞ j =1i=1
lim
cij =
cij =
1.1
Summability of Systems of Real Numbers
For a set S , the family of all nonempty finite subsets of S will be denoted by F (S ). Consider now a system {cα }α∈I , of real numbers indexed by an index set I . The system {cα }α∈I will be simply denoted by {cα } if the index set I is assumed either explicitly or implicitly. The system is called summable if there is ℓ ∈ such that for any ǫ > 0 there is A ∈ F (I ) with the property that whenever B ∈ F (I ) and B ⊃ A, then
Chapter 1
Introduction and Preliminaries
This chapter serves two purposes. The first purpose is to prepare the readers for the more systematic development in later chapters of methods of real analysis through some introductory accounts of a few specific topics. The second purpose is, in view of the possible situation where some of the readers might not be well conversant with basic operations of elementary analysis, to acquaint general readers with fundamental background of analysis.
scott_7e_PPT_ch01
• Contracting parties must trust each other
– E.g., a firm can generate lenders’ trust by incorporating a covenant into a borrowing contract. Covenants are a cost of contracting – Lenders reward firm with lower interest rate. This is a benefit of contracting
• Why would you serve the client or serve society in similar circumstances?
Copyright © 2015 Pearson Canada Inc.
1 - 13
Accounting Policy Implications of Efficient Contracting
• Financial reporting should be reliable
– Reliable reporting generates investor trust
Copyright © 2015 Pearson Canada Inc.
1-1
Financial Accounting Theory Seventh Edition William R. Scott
Purpose: To create an awareness and understanding of the financial reporting environment in a market economy
ch7poweramp
当
U o
2 EC
时
PCmE2RC2L 0.2PLm
d）转换能量的效率η
1 Uo 2 PL 2 RL Uo
PE 2 ECUo 4EC RL
当输出信号最大时：
m
4
78.5%
3、功放管选择 （1）最大允许管耗PCM
PCM0.2P Lm
（2）最大允许电流ICM
I CM
EC R L
（3）反向击穿电压BVCEO
UK
EC 2
电容器Co选择：
K
Co (5-10)
1 2π RL fL
功率计算：
OCL公式中以 取代 EC
EC 2
7.1.6 集成功率放大器
广泛用于音响、电视和小电机的驱动方面。
大多数集成功率放大器 = 运算放大器 + 互补 功率输出。 使用方法原则上与集成运放相同。
３、功率估算
ａ）电源提供功率 PE
1
PE T
T 0
EC(ICQIC sint)dt
ECIC Q
固定不变，与信号的大小、有无无关
ｂ）负载上获得的功率PL
P L T 10 T(C U sit n IC sit) d n 1 2 tU C IC 1 2 U R L C 2 1 2 R L IC 2
（3）、功放管选择 最大允许管耗PCM
PCM0.2P Lm
最大允许电流ICM
ICM
EC RL
反向击穿电压BVCEO
BV CEO 2E C
推挽功放管的配对
2.单电源互补跟随乙类功率放大器（OTL电路）
OTL（Output transformerless) 单电源
（1）、电路(circuit)
Televac MP7ER FR双反向磁漏电子说明书
INSTRUCTION MANUAL MP7ER/FR RemoteDouble Inverted Magnetron Cold Cathode GaugeRange: 7ER 10-8 to 10-2 Torr7FR 10-11 to 10-2 TorrTELEVACA DIVISION OF THE FREDERICKS COMPANY2400 PHILMONT AVE.HUNTINGDON VALLEY, PA 19006PARTS LISTDescription and Instrument OperationThe MP7ER/FR series Remote Module provides a compact stand-alone measurement solution for applications that do not require traditional panel-mounted instrument readouts. These modules can provide local readout and control or can be interfaced directly with a PLC, chart recorder, or data acquisition system. The MP7ER/FR series of instruments use the time proven reliable and rugged TELEVAC 7ER/FR Sensor, which can be changed in seconds. These instruments operate from low voltage DC and are easily integrated into the largest process system with a minimal effort. Likewise, the MP7ER/FR Remote Gauge can be used as a small stand-alone vacuum measurement solution.Features» Wide range 10-2 to 10-11 Torr» Fast restart at high vacuum» No x-ray limit» Reduced external magnetic field» Compact design» Rugged/durable» No-filament burnout»No degassing required» Long life» Cleanable sensor (7ER)START BY READING THESE IMPORTANT SAFETY INSTRUCTIONS AND NOTES collected here for your convenience and repeated with additional information at appropriate points in these instructionsIn these instructions the word “product” refers to the MP7ER/FR and all of its approved parts and accessories.NOTE: These instructions do not and cannot provide for every contingency that may arise in connection with the installation, operation, or maintenance of this product. Should you require further assistance; please contact Televac at the address on the title page of this manual.This product has been designed and tested to offer reasonably safe service provided in it’s installed, operated and serviced in strict accordance with these safety instructions.These safety precautions must be observed during all phases of operation, installation, and service of this product. Failure to comply with these precautions or with specific warnings elsewhere in this manual violates safety standards of design, manufacture, and intended use of the instrument. Televac disclaims all liability for the customer’s failure to comply with these requirements.√ READ Instructions – Read all safety and operating instructions before operating the product. √ RETAIN instructions – Retain the Safety and Operating Instructions for future reference. √ HEED warnings – Adhere to all warnings on the product and in the operating instructions. √ FOLLOW instructions – Follow all operating and maintenance instructions.√ ACCESORIES – Do not use accessories not recommended in this manual as they may require a technician to restore the product to its normal operation.CHAPTER 3Principles of Sensor OperationDouble Inverted MagnetronCold Cathode GaugeThe cold cathode gauge is a high vacuum sensor that measures pressure by ionizing the residual gases in a magnetron discharge. The body of the gauge serves as a cathode, and is at ground potential. The anode operates at voltages up to 4000 volts. The permanent magnet traps electrons in the gauge to sustain the discharge at very low pressure. This gauge is sensitive to gas type. Because of the relative ruggedness of this gauge and since it has no filament to burn out, it is often used in applications where hot cathode gauges are not reliable.SENSOR OPERATION AND INSTALLATION1.0 Connect the gauge to the vacuum system, (can be connected in any position, but mounting withthe vacuum port facing down eliminates any chance of particles entering into the gauge).2.0 Assure that there are no leaks.3.0 Apply 24 DC volt power between pin #4 (+) and #2 (-). Monitor the signal output with a digital voltmeter between pin # 3 (+) and pin # 7. The display will show “OFF” and the signal output will be between 10.5 volts and 14.5 volts.4.0 The gauge is activated by grounding the wire from pin # 1 of the connector and may be operatedover any vacuum range, however, the following cautions.4.1 Activate the gauge only at pressures below 10-2 Torr. Continuous operation above thisrange will result in build up of contaminants inside the gauge and will produce errors inreading. In addition, at even higher pressures the gauge may falsely indicate lowerpressures by having passed beyond the peak of its curve.4.2 Initial activation of the gauge at pressures below 10-6 Torr may exhibit a delay inproviding an accurate reading of pressure until the electrical discharge within the tubehas established itself. This initial delay increases significantly at even lower pressures.Once established the discharge within the tube is maintained over the entire range. Avery rough estimate of start time can be calculated as T, sec = 1/pressure in µTorr.5.0 While the pressure is above the range of the gauge it will display “HI” and the signal output will bejust above the highest reading. If, on the other hand the pressure is below the lower gauge limit, the display will display “LO” and the signal output will remain at its lowest value.6.0 The trip pressure for the setpoint relay can be displayed by pressing the “Display Setpoint”button. It can also be read as a voltage – anytime – on the wire pin # 9 of the connector. Thedisplay will show the setpoint pressure as a blinking number (to distinguish it from a pressurereading) until the button is again pressed or it times out automatically after 60 seconds. Thesetpoint pressure can be changed only during the blinking display by means of the labeledadjustment screw. The new value is retained in memory and the corresponding new voltage isprovided at the setpoint terminal on the connector and is scaled in the same way as the signaloutput.SENSOR OPERATION AND INSTALLATION (cont.)M P 7F R lo g 10-110123456789101.00E -111.00E -101.00E -091.00E -081.00E -071.00E -061.00E -051.00E -041.00E -031.00E -02P R E S S U R E (T O R R )V O L T A G ERecorder Outputs“HI”9.210.2Maintenance1.0 1.1 1.2 1.3 1.42.02.2 2.3 2.4 Blast the2.5 After cleaning, blow out any residual glass beads or dust with dry air.2.6 Rinse with alcohol, followed with a rinse of de-ionized water. 2.7 Dry anode assembly and the body in a clean oven @ ~ 200° F.2.8 Re-grease the “O” ring with Apiezon L or M Grease. (A vacuum approved grease).DO NOT APPLY EXCESS GREASE. “O” ring should be shiny. 2.9 Install “O” ring in body..2.10 Replace the anode assembly in the body after the “O” ring has been installed.2.11 Screw the cap on and hand tighten.CHAPTER 6TELEVACCHAPTER 8CHAPTER 7 3.1 Without removing the sensor from the vacuum system, separate the electronic block from the sensor as described in Section 1.0 (Disassembling the 7ER/7FR ). 3.2 After separating the electronics from the sensor, but before disassembling of the sensor for cleaning, use a marker to mark the orientation and positions of the magnets relative to each other and relative to the stainless steel sensor tube. These are aligned at the factory for optimum performance of the sensor. When reassembling after cleaning, reassemble I reverse order with the magnets in their original respective locations and like pole surfaces facing each other (N to N, S to S). 3.3 Holding the magnets, use a 1/32” Allen wrench to remove three setscrews on the top aluminum holding ring. 3.4 Slide away the magnet’s washers and aluminum spacers from the tube’s body. Do not remove the lower aluminum holding ring (one that is closest to the flange). 3.5 Bake out the sensor using heat tape, blanket or other means with temperature controls. Temperature on the gauge’s surface should not exceed 350°C. NOTE : if the bake out temperature does not exceed 180°C for 2 hours, the sensor could be baked out with the magnets in place. 3.6 After cooling the sensor down to room temperature, re-assemble with the magnets in their original respective locations and like pole surfaces facing each other (N to N, S to S). 3.7 Put the electronic block onto the sensor and secure it with flat socket screw. CalibrationAll instrumentation is calibrated at the factory. No further calibration at the customer’s facility should be required, even if the gauge tube is replaced. For a reliable recalibration at a later date, it is necessary to have a reference standard vacuum system whose pressure is known to be accurate. For such a calibration, the instrument and sensor tube should be returned to the factory for re-certification. However, if the vacuum calibration verification must be done at the customer’s facility, a knowledgeable electronics technician trained in vacuum calibration should operate equipment of certifiable accuracy. Troubleshooting1.0 If display consistently displays “HI”, the pressure may be above the gauge upper limit (1 x 10-2 TORR) units to the gauge or there may be a leak locally. Check the integrity of the vacuum connection and, if the 7E sensor is used, check the o-ring seal on the sensor tube.2.0 If the display constantly reads “LO”, the sensor may have become inoperative. Check for correct reassembly after bake out.3.0 If the display continues to read “LO” or “HI” after completing step 1.0 or 2.0, the sensor may be contaminated. Contamination can prevent the sensor from properly discharging (reference chapter 4, paragraph4.0 of this manual for information on operation of the sensor). To clean the sensor, refer to chapter 6, paragraph 2.0 of this manual. NOTE: If, after doing some or all of the above, the unit is still inoperative, return to the factory for repair.SpecificationsMeasurement Range RangeOutput Options1. Log 10 -10 to 10-2 Torr MP7ER: 10-2 TO 10-8 TORR2. Linear 10-8 to 10-3 Torr MP7FR 10-2 TO 10-11 TORR3. Log 2 X 10-11 to 10-2 TorrAccuracy Mounting Orientation+/-0.2 of decade of reading NoneInput Voltage/Power Ion ControlRequired +24 V DC @ 250 mA Ion ON/OFF Control is included Power ON Indicator LED is includedSetpoint Relay Adjustment PotentiometerForm C Contact SetpointOperating Temperature Calibration Medium+ 15 to 50C Dry Air or NitrogenSensor Material Overpressure ToleranceStainless Steel (Type 304) 150 PSIUnpacking and InspectionBefore each unit is installed or operated, a quick inspection should be performed and the following noted:a. damage to the unit (scratches, nicks, dents, cracks, etc.)b. missing: screws, switches or switch hardwarec. broken barrier strips, etc.d. broken or loose components within instrumentShould any of the above problems be encountered, contact the factory immediately. Any unauthorized repairs will void the warranty.CHAPTER 12Warranty informationThe Televac division warrants instruments and components to be free of defects in material and workmanship for a period of one year after the date of shipment unless otherwise specified in the quotation pr product literature. No salesman, Representative or agent of the Fredericks Company, or its divisions is authorized to give any guarantee or warranty or make any representation in addition or contrary to those stated herein.Other than those expressly stated herein, there are no other warranties of any kind, express or implied and specially excluded but not by way of limitation, are the implied warranties of fitness for a particular purpose and merchantability. It is understood and agreed the seller’s liability whether in contract, in tort, under any warranty, in negligence or otherwise shall not exceed the return of the amount of the purchase price paid by the purchases and under no circumstances shall seller be liable for special, indirect, incidental or consequential damages. The price stated for the equipment is a consideration in limiting seller’s liability. No action regardless of form, arising out of transactions of this agreement may be brought by purchase more than one year after the cause of action has accrued, seller’s maximum liability shall not exceed and buyer’s remedy is limited to either (1) repair or replacement.。
laudon_ess7_ch04_re
4Chapter 信息技术基础设施信息技术基础设施：：硬件和软件IT IT Infrastructure: Hardware Infrastructure: Hardwareand SoftwareSTUDENT OBJECTIVESChapter 4 IT Infrastructure: Hardware and Software•识别和描述信息技术基础设施的构成识别和描述信息技术基础设施的构成。
Identify and describe the components of IT infrastructure.识别和描述几种主要的计算机硬件识别和描述几种主要的计算机硬件、、数据存储•以及输入输出技术以及输入输出技术。
Identify and describe the major types of computer hardware, data storage, and input and outputtechnology.•识别和描述商业领域常用的计算机软件识别和描述商业领域常用的计算机软件。
Identify and describe the major types of•评估现代计算机硬件和软件的发展趋势评估现代计算机硬件和软件的发展趋势。
Assess contemporary hardware andsoftware trends.STUDENT OBJECTIVES (Continued)Chapter 4 IT Infrastructure: Hardware and Software •评估硬件和软件管理技术的主要问题评估硬件和软件管理技术的主要问题。
Evaluate the principal issues in managing hardware and software technology.梦工场依靠信息技术保证动画片的产量DreamWorks Animation Turns to Technology for Production Support•Problem:Gaining an edge in an intenselycompetitive market （激烈竞争市场激烈竞争市场））, working with technology-intensive processes.•Solutions: Deploy （部署部署））custom-built EMOsoftware to render more realistic animations （活泼活泼、、Chapter 4 IT Infrastructure: Hardware and Software 有生气有生气））and increase quality of films.•HP processors and high-speed network facilitate （帮助）rapid production schedule, increasingproductivity （提高生产力提高生产力））.•Demonstrates IT’s role in strengthening a firm’sproduct and productivity beyond what human talent can accomplish.•Illustrates digital technology’s role in gaining an advantage in a fiercely （激烈地激烈地））competitive market.Essentials of Business Information SystemsChapter 4 IT Infrastructure: Hardware and SoftwareDreamWorks Animation Turns to Technology for Production Support Interactive Session: DreamWorks Animation •What is your opinion of DreamWorks Animation’s decision to invest heavily in information technologyrather than superior people resources?•What other industries can you think of that could benefit from a similar approach?•What kinds of firms do you think would be better off taking the opposite approach?•激烈的竞争•技术密集型流程•开发技术和商业策略•提供更加逼真的动画•提供便利的快速生产计划表•多项目领域协作4.1 信息技术基础设施信息技术基础设施：：计算机硬件IT Infrastructure: Computer Hardware•计算机硬件计算机硬件；；ComputerComputer hardware hardware •计算机软件计算机软件；；ComputerComputer software software 4.1.1 基础组件Infrastructure Infrastructure Components ComponentsEssentials of Business Information SystemsChapter 4 IT Infrastructure: Hardware and Software •数据管理技术数据管理技术；；DataData management technology management technology •网络和通信技术网络和通信技术；；NetworkingNetworking and telecommunications and telecommunications technology•技术服务技术服务（（内部和外部咨询服务内部和外部咨询服务），），），系统整合过时的系统系统整合过时的系统系统整合过时的系统。
laudon_ess7_ch02
• Explain how enterprise applications and intranets promote business process integration and improve organizational performance. • Assess the role of the information systems function in a business.
Business Processes • What tasks does each employee perform, in what order, and on what schedule? • How are raw materials transformed into products? • How are orders fulfilled? • How are bills paid? • How are products marketed? • How are employees hired?
2.2
© 2007 by Prentice Hall
Essentials of Business Information Systems
Chapter 2 E-Business: How Businesses Use Information Systems ESTUDENT OBJECTIVES (Continued)
Chapter 2
E-Business: How Businesses Use Information Systems
2.1
© 2007 by Prentice Hall
Essentials of Business Information Systems
- 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)。
- Why different bases of accounting for different financial statement items?
Copyright © 2015 Pearson Canada Inc.
2 - 15
2.6 The Non-Existence of True Net Income
Copyright © 2015 Pearson Canada Inc.
2-3
2.3 Ideal Conditions of Uncertainty
• Assumptions
– States of nature
• The set of possible states of nature is publicly known • State realization publicly observable
– – – – Applies to proved reserves only Discounted at mandated rate of 10% Revenue recognized as reserves are proved Uses average oil & gas prices for the period
• Different tradeoffs between
– – – – Relevance and reliability Timing of revenue recognition Recognition lag Matching of costs and revenues
>> Continued
• Assumptions
– Known future cash receipts – Given interest rate
• Basis of accounting
– Present value (or market value)
• Income recognition
– As changes in present value occur
– If no market value, cannot use market value as proxy for present value – If have to estimate present value, true net income does not exist
>> Continued
2-1
Copyright © 2015 Pearson Canada Inc.
Chapter 2 Accounting Under Ideal Conditions
Copyright © 2015 Pearson Canada Inc.
2-2
2.2 Ideal Conditions of Certainty
– Estimates are subject to error and bias
• Major adjustments to previous estimates usually needed
>> Continued
Copyright © 2015 Pearson Canada Inc.
2 - 10
– Reliable information
• • • • Complete (i.e., nothing left out) Free from material error Free from bias How reliable is RRA information compared to historical cost sale-based information?
– Relevant information
• Information about future firm performance • How relevant is RRA information, compared to historical cost sale-based accounting?
Copyright © 2015 Pearson Canada Inc.
2 - 17
பைடு நூலகம்
Copyright © 2015 Pearson Canada Inc.
2-6
2.4.2 Reserve Recognition Accounting
• An application of present value accounting when ideal conditions do not exist • SFAS 69 of FASB
• Why?
– Incomplete markets – Reasons for incompleteness
• thin markets
– As for oil and gas reserves
• information asymmetry
– Too much asymmetry, no market develops
– State probabilities
• objective • publicly known
– Given interest rate
>> Continued
Copyright © 2015 Pearson Canada Inc.
2-4
Ideal Conditions of Uncertainty (continued)
Copyright © 2015 Pearson Canada Inc.
2 - 14
Historical Cost v. Current Value Accounting (continued)
• The mixed measurement model
– Current value accounting for
Reserve Recognition Accounting (continued)
• Critique of RRA (continued)
– Management’s Reaction to RRA
• Concern about relevance and reliability • Concern about legal liability
• Not when expected to be sold
>> Continued
2-7
Copyright © 2015 Pearson Canada Inc.
Reserve Recognition Accounting (continued)
• RRA relevance versus reliability
Copyright © 2015 Pearson Canada Inc.
2 - 16
The Non-Existence of True Net Income (continued)
• Implications for accountants
– Accountants not needed if true net income did exist – Judgement required to estimate net income – Judgement is essence of a profession
– See next slide
Copyright © 2015 Pearson Canada Inc.
2 - 12
Relevance v. Reliability Tradeoff
Copyright © 2015 Pearson Canada Inc.
2 - 13
2.5 Historical Cost v. Current Value Accounting
>> Continued
Copyright © 2015 Pearson Canada Inc.
2-9
Reserve Recognition Accounting (continued)
• Critique of RRA
– Estimates needed to apply RRA
• • • • Estimates of quantities Estimates of timing of extraction Estimates of prices State probabilities not objective
A partial application of present value accounting when ideal conditions do not hold
– Shows net present value of business in force – Relevance? – Reliability? – Why is Manulife’s embedded value per share ($20.02) less than share price ($13.96)?
>> Continued
Copyright © 2015 Pearson Canada Inc.
2-8
Reserve Recognition Accounting (continued)
• Canadian Reserve Recognition Accounting
– – – – Text, Chapter 2, Problem 28, NI 51-101 Relevance compared to SFAS 69? Reliability compared to SFAS 69? Why do many large Canadian firms opt out in favour of SFAS 69?
• • • • Accounts receivable Financial instruments Accounts payable Post-retirement benefits