隔爆型电接点压力表使用说明书

隔爆型电接点压力表使用说明书

Explosion-proof Type Pressure Gauge with Electrical Contact

Operational Instructions

YTX-100B

隔爆型电接点压力表系按国家标准“爆炸性气体环境用电气设备”第1部分：通用要求The Explosion-proof Type Pressure Gauge with Electrical Contact is designed according to the national standard “Electric Equipment in Explosive Gas Atmosphere”, i.e. Part I Common Requirements of

GB3836.1-2000、第2部分：隔爆型“d”GB3836.2-2000的相关规定及行业标准：“电接点GB3836.1-2000, Part II the related regulation of GB 3836.2-2000 for explosion-proof type “d”products and relative industrial standards, and JB/T9273-1999 requirements for “Pressure Ga u ge With Electrical Contact”.

压力表”JB/T9273-1999的要求进行设计，经国家制定的检验机构所审批的图样和技术文件Meanwhile it is manufactured as per the approved drawing and technical documents approved by the national stated inspection institution.

进制造的。

一、用途

I. Purpose

隔爆型电接点压力表的防爆标志你：ExdⅡCT4（标志Ex、隔爆型d、类型ⅡC、温度The explosion-proof marks for Explosion-proof Type Pressure Gauge with Electrical Contact are as below: ExdIIC T4 (in which the Ex stands for mark, d stands for explosion-proof, IIC stands for category and T4 stands for temperature arrangement),

组别T4），适用于爆炸性气体环境中，测量温度低于70℃的介质压力。并通过电气信号装which is applicable to the explosive gas environment with media pressure at 70℃and below measured temperature.

置与具有相应防爆性能的电器件配套使用，对被测压力执行自动控制、报警、信号远传等多The explosion-proof Type Pressure Gauge with Electrical Contact is equipped with multi functions as automatic control, alarm, signal distant transfer and other functions for the measured pressure with the help of the electric signal equipment and electrical equipment with the related explosion-proof performance for. The grade of gauge case is for IP65.

种功能,防护等级IP65。

二、仪表结构与防爆原理

II. Gauge Structure and Explosion-proof Principle

仪表由隔爆结构的外壳及内装电接点压力表组成。工作中，当表壳内部的可燃性混合物The gauge is composed of explosion-proof case and build-in pressure gauge with electrical contact. When the flammable gas mix in gauge case explodes caused

因受火花或电弧（电接点压力表的电气信号装置所引起）等作用而发生爆炸时，不会引起仪by the spark or electric arc (generally caused by the electric signal device with pressure gauge with electrical contact),

表外现场爆炸性气体的爆炸，从而达到防爆的目的。

the explosive gas outside the case won’t explode accordingly, thus achieving the explosion-proof purpose.

三、基本参数

III. Basic Parameters

ii. Please see the overall dimension as below

3、 接线方法如图二所示

iii. Wiring Methods as Shown in Diagram II

图二 接线示意图

Diagram II Wiring Diagram

1、上下限设定指针----黄色线

2、上限导电针（触点）----红色线

3、下限导电针（触点）----蓝色线

4、接地

1. Indicating Needles for Upper and Lower Limit-Yellow Line

2. Conducting Needles (Contact) for Upper Limit-Red Line

3. Conducting Needles (Contact) for Lower Limit -Blue Line

4. Earthing

4、进线橡胶密封圈内径Φ10mm，配用500VBX型对芯橡皮线4X12橡套电缆（外径Φ9.8），

电缆引入装置处达到IP44的要求。

iv. The inner diameter of the inlet rubber seal shall be Φ10mm. It shall be equipped with 500VBX rubber-sheathed cord and 4X12 cab-type cable (with outer diameter of Φ9.8). The cable incoming line shall meet the requirements of IP44.

四、使用、维护与检修

IV. Operation, Maintenance and Inspection

1、仪表安装的条件要求：环境温度为-40℃～70℃，海拔不高于2000M（气压0.08～

0.11MPa）。仪表应垂直安装，并力求与测定点保持同一水平位置。

Gauge Installation: the ambient temperature shall be between -40℃and 70℃,with sea-level height shall not above 2000m (atmospheric pressure for 0.08-0.11Mpa). The gauge shall be installed vertically, being horizontal to the measuring point.

2、仪表的电气线路接妥后，应旋紧压紧螺母，认真检查并应进行试动作。

After the completion of the gauge electric line, screw the clamp nuts, take careful inspection and perform test run.

3、仪表在测量稳定压力时，可使用至上限的3/4；在测量交变压力时则用至上限值2/3；

测量负压时不受此限。

In case of measuring the steady pressure, the gauge may be turned to 3/4 of the upper limit; in case of measuring the alternating pressure, the gauge may be turned to 2/3 of the upper limit; in case of measuring the negative pressure, there is no such limit.

4、在打开出线盒或调节上、下限设定值范围时，必须首先切断电源。

The power source shall be cut off before opening the outlet box or adjusting the upper or lower limit.

5、仪表在正常使用的情况下，应定期检验，每半年至少进行一次。仪表如突然发生问

题（弹簧管因渗漏而导致泄压；触头熔焊或因严重氧化影响触点通、断的可靠性；

指针松动或指示失灵等现象）时，则应立即予以检修或更换。

Under the normal application circumstance, the gauge shall be inspected regularly, i.e. once at least every six months. Should there be a sudden deterioration of the gauge (pressure relief for corrugate pipe leakage; fusion welding or severe oxidation of the contact highly influence the reliability of wire connection and disconnection; loosening or malfunction of the needles), the gauge shall be inspected or replaced immediately.

6、仪表在使用过程中，应经常保持其干燥和洁净。

The gauge shall be kept in dry and clean place during the process of operation.

7、仪表的防爆性能可靠与否，主要取决于隔爆外壳的承压强度及隔爆面对质量情况。

因此在进行安装、使用及检修过程中，务必注意隔爆面，切勿磕碰划伤，特别是在

拆装仪表的接线盒或在对其进行全面检修时应特别注意。在隔爆面上不允许涂漆。

The reliability of the explosion-proof gauge mainly depends on the bearing strength of the case and the quality of the explosion-proof surface. Therefore, pay much attention to the explosion-proof surface and avoid collision and scuffing during the process of installation, operation and maintenance, specially as