I. application

The electric contact bimetal thermometer is applied to 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 C -+500 C.

Two, characteristics

1, on-site display of temperature, intuitive and convenient;

2. It has the function of automatically cutting off power and alarm.

3, safe and reliable, long service life.

4. Various structural forms can meet different requirements.

Three, working principle

The contact metal bimetallic thermometer is used to drive the contact change when the temperature changes. When it contacts or disconnects with the upper and lower limit contacts, the relay in the circuit acts, thereby automatically controlling and alarming.

Four, main technical parameters

1, product implementation standards:

JB/T8803-1998

GB3836-83

2, scale nominal diameter: 100

3. Accuracy: 1, 1.5

4, thermal response time: less than 40s

5, protection level: IP55

6, electrical parameters

7, insulation resistance

8. Normal working atmospheric conditions: temperature -25-+55 degrees C, relative humidity less than 85%.

9, set point error: set point error should not exceed 1.5 times the basic error limit.

10, handover error: the difference error of handover should not exceed 1.5 times of the basic error limit.