⎝⎛星力捕鱼⎞⎠

⎝⎛星力捕鱼⎞⎠ page Company Profile ⎝⎛星力捕鱼⎞⎠ Product center Quality system marketing network After sales service Recruitment contact us
Flow meter series
Temperature instrument series
Pressure instrument series
Calibration instrument series
Level instrument series
Digital display instrument series
Transmitter instrument series
Wire and cable series
Bridge instrument cabinet series
Pipe fitting valve series

Address: Xiongyi, Jinhe Road, Jinhu County, Jiangsu Province
Lunan
Phone: 0517-86900901
0517-86900921
0517-86900920
Fax: 0517-86900902
Postcode: 211600
http://zzyfwh.com
Email: chinadongxiang@163.com
Thermometers
Explosion-proof thermal resistance

作为温度测量和控制的传感器与显示仪表配套,以直接测量和控制生产过程中的气体、液体和蒸汽的温度。 Industrial explosion-proof thermal resistance is used as a temperature measurement and control sensor and display instrument to directly measure and control the temperature of gas, liquid and steam in the production process.
Explosion-proof performance of chemical-specific explosion-proof thermal resistance and explosion-proof thermal resistance products is designed and manufactured according to the "explosion-proof electrical equipment for explosive environments" promulgated by the country. The thermoelectric characteristics conform to international IEC standards and passed the test of the national instrument and instrument explosion-proof safety supervision station. The structure, principle and assembly method of thermocouple and explosion-proof thermal resistance are basically the same. The main difference is that the explosion-proof product junction box (enclosure) is designed by die-casting with high-strength aluminum alloy and has sufficient internal space, wall thickness and machinery. The strength and thermal stability of the rubber seal ring are in line with national explosion-proof standards. Therefore, when the explosive mixed gas inside the junction box explodes, its internal pressure will not damage the junction box, and the thermal energy generated by it will not be able to diffuse outward-explosion. As long as the user strictly observes the product use rules, explosion-proof thermal resistance products will Can achieve a reliable explosion-proof effect. zzyfwh.com

Features
Pressure spring-type temperature sensing element, good anti-vibration performance;
High measurement accuracy;
No need to compensate the wires, saving costs;
Imported thin film resistor elements, reliable and stable performance.

working principle
Explosion-proof thermal resistance is based on the principle of gap explosion-proof, designed with sufficient strength of the junction box and other components, all parts that will produce sparks, arcs and dangerous temperatures are sealed in the junction box cavity. The gap between the joint surface is extinguished and cooled, so that the flame and temperature after the explosion can not be transmitted outside the cavity, so as to isolate the explosion.

The main technical parameters

 

Product performance standards
IEC751 JB / T18622-1997 JB / T8623-1997 JB / T5518-91
Room temperature insulation resistance
在环境温度为15—35°C,相对湿度不大于80%,试验电压为10—100V(直流)电极与外套管之间的绝缘电阻>100MΩ。 Explosion-proof thermal resistance at the ambient temperature of 15-35 ° C, relative humidity is not greater than 80%, the test voltage is 10-100V (DC) insulation resistance between the electrode and the outer tube> 100MΩ.

Measurement range and tolerance
model
Index number
Temperature measurement range
Accuracy class
Allowable error
WZP
Pt100
-200- + 500
Class A
( 0.15+0.002) ltl ± ( 0.15 + 0.002) ltl
Class B
( 0.30+0.005) ltl ± ( 0.30 + 0.005) ltl
WZC
Cu50 Cu100
-50- + 100
---
( 0.30+0.005) ltl ± ( 0.30 + 0.005) ltl

  型号命名方式 Model name of explosion-proof thermal resistance