Explosion-proof electric contact pressure gauge

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YX - 160 - B explosion-proof electric contact pressure gauge by explosion-proof enclosure, measuring…

A. Product structure principle
YX - 160 - B explosion-proof electric contact pressure gauge by explosion-proof enclosure, measuring system, electric contact group, the control device and the outlet box, etc.The pressure gauge of flame-proof shell has the good explosion-proof performance, therefore the explosion-proof electric contact pressure gauge in normal work process because of the influence of the sparks or electric arc, in addition to shell under internal explosive gas mixtures at once an explosion caused by the explosion pressure, and can effectively prevent the resulting heat well spread outward, but only inside the shell along the flame-proof tiny cracks in the joint surface slowly spread outward.At this time, the external moments to shell temperature has dropped below the ignition temperature of explosive gas mixture, it will not lead to explosive.
Working principle of explosion-proof electric contact pressure gauge is based on the detecting element (bourdon tube) in measuring system of the elastic deformation, through mechanical transmission to drive the electric contact contact in a group to produce the corresponding action (closed or disconnected) to make the pressure control system of the circuit to connect or disconnect, so as to realize the purpose of automatic alarm and control instructions given.

2. The main technical indicators
Level of accuracy: 1.5
Scale range: 0 ~ 0.16;0 ~ 0.25;0 ~ 0.4;0 ~ 0.6;0 ~ 1;0 ~ 1.6;0 ~ 2.5;0 ~ 4;0 ~ 6;0 ~ 10;0 ~ 16;0 ~ 25;0 ~ 40;0 ~ 60;0.1 ~ 0.06;0.1 ~ 0.15;0.1 ~ 0.3;0.1 ~ 0.5;0.1 ~ 0.9;0.1 ~ 1.5;0.1 ~ 2.4 MPa
Control mode: the lower limit, go slow contact switch
The highest working voltage: DC 220 v or 220 v AC;
Contact power: 10 va
Work location: vertical installation
Environmental conditions of use: - 10 ~ 50 ℃, relative humidity is not more than 80%, and the explosive mixture belongs to Ⅱ B T4 group, under the working vibration and sharp pulse response instrument measured medium contact reliable action had no effect.
Temperature: no greater than 0.4% / value for 10 ℃, set point is not more than 0.6% / 10 ℃ (20 + / - 5 ℃ temperature deviation).
Dielectric strength: 50 hz sinusoidal ac 2000 v for a minute
6 kg weight:
3. Flame-proof joint type and basic parameters

Note: the flame-proof joint examples of the effective length and gap width can see explosion-proof enclosure structure diagram.

, explosion-proof enclosure, guide pressure system parts and materials, etc

Note: explosion-proof electric contact pressure gauge is the material of the observation window of the impact strength is not less than 4 j.Observation window once damage, are not allowed to be used.