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Shanghai Automation Instrument Co., Ltd
No. 191 Guangzhong West Road, Shanghai
WRR-130 Platinum Rhodium Thermocouple
Product Introduction: Industrial assembled thermocouples are used as temperature sensors, usually paired with display instruments, recording instruments, and electronic regulators. It can directly measure the surface temperature of liquids, vapors, gases, and solids within the range of 0 ℃ to 1800 ℃ in various production processes.
According to national regulations, our factory has been producing platinum rhodium with IEC standard division numbers since 198730-Platinum rhodium6Platinum rhodium10-Platinum, nickel chromium nickel silicon, nickel chromium copper nickel, copper copper nickel, iron copper nickel and other types of thermocouples shall comply with JB/T3238-1999 standard.
Working principle: The working principle of a thermocouple is that two conductors with different compositions are welded at both ends to form a circuit. The direct 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 thermal current 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 between the two 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.

WRR-130 Platinum Rhodium Thermocouple
Product selection information:
| W | R | specification | content | ||||
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| R |
| platinum-rhodium30-Platinum rhodium6 | |||
| P |
| platinum-rhodium10-Platinum | |||||
| N |
| Nickel chromium nickel silicon | |||||
| E |
| Nickel chromium copper nickel (nickel chromium constantan) | |||||
| hot electricity by chance material material | - | 1 |
| Non fixed device type | |||
| 2 |
| Fixed thread type | |||||
| 3 |
| Active flange | |||||
| 4 |
| Fixed flange type | |||||
| 5 |
| Activity flange angle ruler form | |||||
| 6 |
| Fixed thread conical protective tube type | |||||
| Installation fixed form | 2 |
| Splash proof type | ||||
| 3 |
| waterproof type | |||||
| 4 |
| Explosion proof type | |||||
| junction box type | 0 | ø 16mm protective tube | |||||
| 1 | ø 25mm protective tube (double-layer sleeve) | ||||||
| 2 | ø 16mm high aluminum pipe (single-layer sleeve) | ||||||
| 3 | Ø 20mm high alumina pipe | ||||||
| Design Serial Number |
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| W | R | □ | - | □ | □ | □ |
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Therefore, arc extinguishing is a consequence that must be dealt with by high-voltage circuit breakers. 3. High voltage circuit breaker (air switch), also known as air switch, can be used to connect and disconnect load circuits, and can also be used to control motors that do not start. Its function is equivalent to the sum of partial or complete functions of electrical appliances such as knife switches, overcurrent relays, voltage drop relays, thermal relays, and leakage protectors, and it is one of the main protective appliances.
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Compensation wire type
Splash proof type
Waterproof type
Handle type
Small junction box
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