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Right angle thermocouple
As a sensor for measuring temperature, a right angle thermocouple is usually used in conjunction with display instruments, recording instruments, elec
Product details
Right angle thermocoupleAs a temperature sensor, it is usually used in conjunction with display instruments, recording instruments, electronic computers, etc. It can directly measure various production processes0～1300The surface temperature of liquid, vapor, gas media, and solids within the temperature range of ℃. In addition, it has simple assembly, easy replacement, pressure spring type temperature sensing element, good anti vibration performance, large measurement range, high mechanical strength, and good pressure resistance.
The working principle of a thermocouple is that two conductors with different compositions are welded at both ends to form a circuit. The temperature measuring end is called the measuring end, and the wiring terminal end is called the reference end. When there is a temperature difference between the measuring end and the reference end, a thermoelectric potential will be generated in the circuit. When connected to a display instrument, the instrument will indicate the corresponding temperature value of the thermoelectric potential generated by the thermocouple. The thermoelectric potential of a thermocouple will increase as the temperature at the measuring end rises. The magnitude of the thermoelectric potential is only related to the material of the thermocouple conductor and the temperature difference at both ends, and is independent of the length and diameter of the thermoelectric electrode.
Prefabricated thermocouples are mainly composed of a junction box, protective tube, insulating sleeve, terminal block, and thermoelectric electrode, and are equipped with various installation and fixing devices.
Temperature measurement range and allowable error
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Thermocouple category |
code |
Graduation |
Measurement range ℃ |
Allowable deviation △ t ℃ |
|
Nickel chromium nickel silicon |
WRN |
K |
0~1300 |
± 2.5 ℃ or ± 0.75% │ t │ |
Note "t" refers to the measured temperature of the temperature sensing element
Upper limit temperature insulation resistance
The insulation resistance of the upper limit temperature of the thermocouple should not be less than the following specifications:
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Upper limit temperature tm ℃ |
Test temperature t ℃ |
Resistance value M Ω |
|
100≤tm＜300 |
t=tm |
10 |
|
300≤tm＜500 |
t=tm |
2 |
|
500≤tm＜850 |
t=tm |
0.5 |
|
850≤tm＜1000 |
t=tm |
0.08 |
|
1000≤tm＜1300 |
t=tm |
0.02 |
|
tm＞1300 |
t=1300 |
0.02 |
Model representation
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WR |
thermocouple |
content |
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code |
Types of thermoelectric electrodes |
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R |
Platinum rhodium 30- Platinum rhodium 6 |
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P |
Platinum rhodium 10 platinum |
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N |
Nickel Silicon - Nickel Silicon |
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M |
Nickel chromium silicon nickel silicon |
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E |
Nickel chromium copper nickel |
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C |
Copper Copper Nickel |
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F |
Iron copper nickel |
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code |
Number of output signals |
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not have 2 |
Single tube Double branch |
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code |
Fixed device form |
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1 2 3 4 5 6 7 |
Non fixed device type Fixed thread Movable flange Flange Active flange angle ruler type Fixed threaded conical tube Straight pipe joint type |
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code |
Form of junction box |
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2 3 4 |
Splash proof type Waterproof type explosion-proof type |
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code |
Protection tube diameter |
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0 |
Φ 16mm protective tube |
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1 |
Φ 25mm protective tube |
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2 |
Φ 16mm high aluminum protective tube |
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3 |
Φ 20mm high aluminum protective tube |
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1. Reply within one hour after receiving customer feedback and handle it promptly; If on-site service is required, professional personnel (equipped with testing and repair tools) will arrive at the user's site within 48 hours.
2. Regularly follow up with each customer and make corresponding usage feedback records, and timely file them.
3. Assist users in selecting scientifically and reasonably based on on-site conditions and process requirements, ensuring the normal and efficient operation of instruments.
4. Free training for user operators.
5. Utilize debugging, maintenance time, and user operators for on-site training.
6. Assist users in developing instrument management systems
2. Regularly follow up with each customer and make corresponding usage feedback records, and timely file them.
3. Assist users in selecting scientifically and reasonably based on on-site conditions and process requirements, ensuring the normal and efficient operation of instruments.
4. Free training for user operators.
5. Utilize debugging, maintenance time, and user operators for on-site training.
6. Assist users in developing instrument management systems
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