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technical article
Electrical contact bimetal thermometer product implementation standards
2012-2-21 10:34:59


应用于生产现场对温度需自动控制和报警。 Electric contact bimetal thermometer is used in the production site to automatically control and alarm the temperature. Directly measure the temperature of liquid, steam and gas medium in the range of -80 ~ 500 ℃ in various production processes.

Characteristics of electric contact bimetal thermometer
Display temperature on site, intuitive and convenient;
With automatic power off and alarm function;
Safe and reliable, long service life;
A variety of structural forms can meet different requirements.

工作原理 Working principle of electric contact bimetal thermometer
The electric contact bimetal thermometer uses the change of temperature to drive the change of the contact, and when it contacts or disconnects with the upper and lower limit contacts, the relay in the circuit works, thereby automatically controlling and alarming.
Electric contact bimetal thermometer is used in the production site to automatically control and alarm the temperature. It can directly measure the temperature of liquid, steam and gas medium in the range of -80 ℃ -500 ℃ in various production processes.


The main features of the electric contact bimetal thermometer are temperature display on site, intuitive and convenient;
With automatic power off and alarm function;
Safe and reliable, long service life;
Multiple structural forms to meet different requirements


产品执行标准: Electrical contact bimetal thermometers implement standards:
JB / T8803-1998
GB3836-83
Nominal diameter of the dial: 100
Accuracy level: 1.0, 1.5
Thermal response time: ≤40s
Protection level: IP55
Normal working atmospheric conditions: temperature -25-55 ℃ relative humidity ≤85 ﹪.
Setpoint error: The setpoint error should not exceed 1.5 times the basic error limit.
Switching difference: The switching difference error should not exceed 1.5 times the basic error limit.


Electric contact bimetal thermometer is used in the production site to automatically control and alarm the temperature. It can directly measure the temperature of liquid, steam and gas medium in the range of -80 ℃-+ 500 ℃ in various production processes. Main features: On-site temperature display, intuitive and convenient; with automatic power cut-off and alarm function; safe and reliable, long service life; multiple structural forms, can meet different requirements. When it is in contact with or disconnected from the upper and lower limit contacts, the relay in the circuit is activated, thereby automatically controlling and alarming.

Features of electric contact bimetal thermometer:
• On-site temperature display, intuitive and convenient;
• With automatic power off and alarm function;
• Safe and reliable, long service life;
• Multiple structural forms, can meet different requirements


Main technical parameters of electric contact bimetal thermometer
1.Type of electrical contact; upper and lower limit contact, single upper limit contact, double upper limit contact.
2 accuracy level
Upper and lower limit electrical contacts, single upper limit electrical contacts: level 1.5, the basic error of which is ± 1.5% of range.
Double upper limit electrical contact: the first upper limit is 1.5, the second upper limit is 4 and the setting error of the contact is 1.5 times the basic error of the indicated value
3 contact rated power 10VA
The maximum working voltage of the contact is 220Va.c The maximum working current of the contact is 1A (without inductive load). The recommended working voltage is less than 36V, but it should not be less than 12V to ensure reliable contact operation