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- Contact Person : Ms. Qiao Joyce
- Company Name : Anhui Land Group Co., Ltd.
- Tel : 86-0550-7321122
- Fax : 86-0550-7322490
- Address : Anhui,TianChang,NO.586 North Xinhe Road Tianchang city, Anhui China
- Country/Region : China
- Zip : 239300
Explosion-proof Thermocouple (Thermal Resistance)with Temperature Transmitter Display Tube
Detailed Product Description
The Application of Thermocouple:
Thermocouple is usually used with display meter, recording meter and computer etc. to directly measure temperature of liquid ,vapor, gas medium and solid surface ranging from -200oC to 1300oC during various production processes with output of 4~20 Ma.
Features:
1.Multi explosion-proof type, good explosion-proof performance.
2.Spring thermal element with good shock-resistant performance.
3.Wide measuring range.
4.High mechanical strength and good pressure-resistant performance.
The Main Technical Parameters:
1.Standard: IEC 584, IEC 1515, IEC 751, GB 3836-2000, JB/T 5518-91, JB/T 7391-94.
2.Output Signal: 4~20Ma, Loading Resistance:250Ω, Transforming Wire Resistance:100Ω.
3.Output Method: Two Wire.
4.Accuracy Class of Temperature Transmitter:0.1, 0.2 ,0.5.
5.Accuracy of Display Meter: Analog lndication Class:2.5.
6.Digital Display Class:0.1.
7.Power Supply:24v.DC±10%.
8.Protection Class: IP65.
9.Explosion-proof Class
Explosion-separation: dll BT4, dll CT5, dll CT6
Intrinsic Safety: iall CT 6
10.Insultation Resistance
Insulation resistance between instrument output wire connecting head and outer case shoule be no less than 50mΩ
11.Thermal Response Time
When the temperature has step-jumping change, the needed time for current output signal of instrument changes to 50% of the step-jumping change, this time is called thermal response time, indicating with t0.5. When step-jumping response stable time of temperature transmitter is no more than 1/5 times of t0.5, thermal response time of instrument shall be considered as the thermal response time of thermocouple(thermal resistance)
When step-jumping response stable time of temperature transmitter is no more than 1/2 times of t0.5, thermal response time of ins.trument shall be considered as the thermal response time of temperature transmitter
12.Basic Error:
The basic error of instrument should be no less than the compound error caused by thermocouple(thermal resistance) and temperature transmitter.
