Bimetal Thermometer
Product Application
Bimetal thermometer is a kind of on-site detection instrument for measuring low and medium temperatures, which can directly measure the temperature of liquid, steam and gas media in the range of -80°C~+500°C in various production processes.
Product Principle
Bimetal thermometers are based on a bimetal sheet wound into a circular bend. When one end is expanded by heat, the pointer rotates and the working instrument displays the temperature value corresponding to the thermopotential.
Product Features
- On-site display of temperature, intuitive and convenient;
- With automatic power cut off and alarm function;
- Safe and reliable, long service life.
- A variety of structural forms, can meet different requirements.
Product Category
- Bimetal thermometer-ordinary type, dial pointer indicates the temperature on the spot;
- Electric contact bimetal thermometer: in addition to field indication of temperature, through the upper and lower given contacts, when the temperature reaches the given value, contact closure or disconnection to make the control circuit in the relay action, so as to automatically control and alarm;
- With thermocouple (resistance) integrated bimetallic thermometer, armored thermocouple (resistance) installed in the bimetallic thermometer protection tube, not only to meet the requirements of field Temperature measurement requirements, but also to meet the requirements of long-distance transmission;
- Explosion-proof bimetal thermometer: Used in the production site there are hydrocarbons and other explosive gases when the electric contact type bimetal thermometer, measuring its various processes (-80 ~ +500) range of liquid, gas medium or solid surface temperature. In addition to realizing the characteristics of the electric contact type itself, it also meets the requirements of explosion-proof.
Product Parameters
1. Executive Standard of the Product
- JB/T8803
2. Nominal diameter of standard disk
- 60
- 100
- 150
3. Accuracy level
- Bimetal Thermometer:
- Level 1.0
- Level 1.5
- Armored Thermocouple (Pt100):
- Level A
- Level B
4. Thermal Response Time (t0.5)
| Protection tube diameter (mm) | Thermal response time (s) |
|---|---|
| Ф6*0.5 | ≤40 |
| Ф8*1 | ≤40 |
| Ф10*1 | ≤40 |
| Ф12*1.5 | ≤60 |
| Ф14*1.5 | ≤90 |
5. Protection level:
- IP55
- IP65
- Ip66
6. Angle adjustment error:
the angle adjustment error should not exceed 1.0% of its range.
7. Return error:
the return error of the thermometer should not be greater than the absolute value of the basic error limit.
8. Repeatability:
thermometer repeatability limit range cut should not be greater than 1/2 of the absolute value of the basic error limit.
9. Temperature measurement range
| Temperature measurement range | Accuracy |
|---|---|
| -80~40, -50~300, -50~200, -50~150, -50~100, -50~50, -40~80, -40~60, -30~150, -20~200, -20~150, -20~100, -20~80, -20~60, 0~50, 0~60, 0~80, 0~100, 0~120, 0~150, 0~200, 0~250,0~300, 0~350, 0~400, 0~500, 0~600 | 1.0, 1.5, 2.0 |
10. Normal atmospheric operating conditions
| Workplace | Protection tube diameter | Protection tube diameter |
|---|---|---|
| Shelter | -25~+25 | 5~100 |
| Outdoor places | -40~+85 | 5~100 |
11. Form of measuring end
- Integrated
- Core pulling type
12. Electrical parameters and wiring of the electrical contact type
- Electrical parameters
- Rated power: 10VA
- Working voltage: 220/380V.A.C
- Maximum allowable current: 0.7A
- Wiring method
- Blue, 2, Common
- Red, 1, Upper limit, High Alarm
- Yellow, 3, Lower limit, Low Alarm
Model Naming Method
Standard size
| Form | A | C | E | L | d |
|---|---|---|---|---|---|
| Axial type | Ф65 | 73 | Prior selection M20*1.5, E= 15 M27*2, E=20 | 75, 100, 150, 200, 300 400, 500, 750, 1000 | Ф6, Ф8, Ф10 |
| Ф105 | 73 | ||||
| Ф155 | 73 | ||||
| Radial type | Ф65 | 110 | |||
| Ф105 | 110 | ||||
| Ф155 | 110 | ||||
| 135° orientation | Ф105 | 85 | |||
| Ф155 | 85 | ||||
| Universal type | Ф105 | 178 | |||
| Ф155 | 178 | ||||
| Remote transmission type | Ф105 | 200 | |||
| Electric contact type | Ф105 | 200 |
Structure diagram
- WSS-401
- WSS-411
- WSS-421
- WSS-481
- WSSP-481 (Remote transmission)
- WSSX-481
Contact Us
Assembly Thermocouple
Pre-assembled thermocouple assemblies with sheath and connector options for fast installation and reliable field performance.
Explosion-Proof Thermocouple
Explosion-proof thermocouple certified for hazardous areas, suitable for petrochemical, gas and mining environments where intrinsic safety is required.