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Explosion-proof Electric Contact Pressure Gauge
Brief DescriptionYX-160-B explosion-proof electric contact pressure gauge has excellent explosion-proof performance, thus it can avoid influence from spark or arc during normal working process, it can not only stand explosive pressure generated by mixed explosive gas inne
DetailsTechnical Parameter
Accuracy: 1.6
Scale: 0～0.16；0～0.25；0～0.4；0～0.6；0～1.0；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；-0.1～2.4MPa
Control mode: upper and lower limit amble switch
Max working pressure: DC220V pr AC380V
Contact power: 10VA
Working position: vertically mounting
working environment temperature: -10～50℃，relative humidity is not more than 80%， and explosive mixture is grade IIB below level T4, violent pulse of working vibration and medium has no effect on contact act.
Temperature influence: indication value is not more than 0.4%/10℃, setting point is not more than 0.6%/10℃. (working temperature deviation 20±5℃)
Insulation strength: 50HZ sine alternating current, 200V for one minute
Explosion: type II, grade B, level T4, shown as ExdIIBT4.
Explosion-proof adjoin face type and parameters
| Shell volume V（L） | ＞0.5 | |
| Adjoin face type | Plane | Cylinder(movable) |
| Min effective length of adjoin face Lmm | 15 | |
| Min effective length from adjoin face to screw hole edge L1 | 8 | |
| Max gas diameter of adjoin face Wmm | 0.15 | |
| Surface roughness of adjoin face Ra | 3.2 | 1.6 |
Explosion-proof shell and pressure system parts and materials
| Parts | Material | Parts | Material |
| Shell cover | ZL102 | Thin gasket | L3 |
| Outlet box | （or ZL-102，ZL-101） | Joint | 20 |
| Shaft sleeve | QAI9-2 | Bourdon tube | 3L53 |
| Watching display | Organic glass |
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Note: shock-resistant strength is not less than 4J of watching display material, and do not use after damage of watching display.
