Explosion-proof Thermal Resistance

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■ Application of Explosion-proof Thermal Resistance

Explosion-proof Thermal Resistance is usually matching with display instrument, memorizing meter, electronic computer. Directly measure hydrocarbons which may cause explode 0 ~ 500 ℃ about liquid, steam,gas and surface temperature of solid medium at the production site .

■ Characteristics of Explosion-proof Thermal Resistance

● Pressure spring type temperature sensing element, good vibration resistance performance;

● large measuring range;

● without payment of compensation wire, cost savings;

● imported film resistor, reliable and stable performance

■ Principle of Explosion-proof Thermal Resistance

Explosion-proof thermal resistance using gap explosion-proof junction box and other components of the design principles, with sufficient strength, all can produce a spark, arc and dangerous temperature components are sealed in the junction box cavity, when the cavity when the explosion occurred, can pass through the gap of joint surface quenching and cooling, the explosion of flame and the temperature sensor is not to outside of the cavity, thus the temperature.

■ Main Technical Parameters of Explosion-proof Thermal Resistance

Executive standard ● product

IEC751

JB/T86221997

JB/T96231997

JB/T5518-91

■ Cold Insulation Resistance of Explosion-proof Thermal Resistance

Explosion-proof thermal resistance is 15 ～ at ambient temperature of 35 ℃, relative humidity of not more than 80%, the test voltage is 10 ~ 100V (DC) insulation resistance than 100M Ω.M between the electrode and the outer tube

■ Temperature range and tolerance of Explosion-proof Thermal Resistance

● temperature range and tolerance

■ Selection Guidelines of Explosion-proof Thermal Resistance

1) model

Division No. 2)

3) explosion-proof rating

4) accuracy class

5) fixed form

6) protection tube material

7) length or depth of insertion

Cases of patients with A: explosion-proof thermal resistance, Pt100, fixed thread M27 × 2, explosion-proof grade D to BT4 grade II, protecting tube 316, insert depth 300mm. HR-WZP-240, Pt100, L=450 * 300, D Ⅱ BT4 temperature transmitter 0.5, protecting tube 316, thread M27 * 2.

Our main products includeRosemountpressure transmitter,Rosemounttemptransmitter,Yokogawa Pressure Transmitter,Rosemount 3051s pressuretransmitter,flow transmitter, liquid level meter, flowmeter, flow meter, thermal resistance, thermocouple, level gauge, temperature controller and sensors. The brands we can supply include Rosemount, Yokogawa, Abb, Honeywell, Siemens, etc. We have attained ISO9001:2008 certification. Moreover, we had won a lot of awards. Most of our products are exported to Europe, the Middle East, Asia, and America. Thanks to more than 5 years hard work, we have enjoyed a high reputation at home and abroad.

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