Hontai Machinery and equipment (HK) Co. ltd
Hontai Machinery and equipment (HK) Co. ltd God helps those who help themselves, Creative and progressive,Being honest.
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Temperature Meter Assembling Type Thermocouple Magnetic Level Gauges WRR2-121
assembly-type thermocouple
As the sensor of the temperature measurement, assembly-type thermocouple is used with displays, recorders and electrical adjuster completely. It can measure the temperature of liquid, vapor, gas and the surface of solid from 0℃ to 1800℃ directly. According to national regulation, we have manufactured copper- copper nickel, iron-copper nickel etc. type of thermocouple since 1987. They are all in line of IEC international standard graduation.
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category
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mode
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graduation
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range
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Allowable error(△t℃)
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| Platinum rhodium 30－Platinum rhodium 6 | WRR | B | 0-1800 | ±1.5℃ or ±0.0025∣t∣ |
| Platinum rhodium10－platinum | WRP | S | 0-1600 | ±1.5℃ or ±0.0025∣t∣ |
| Nickel chromium triangle－nisiloy | WRN | K | 0-1300 | ±2.5℃ or ±0.0075∣t∣ |
| Nickel chromium triangle－copper nickel | RE | E | 0-800 | ±2.5℃ or ±0.0075∣t∣ |
| W | Temperature meter |
| R | Thermocouple |
| □thermocouple material | R)platinum rhodium30－platinum rhodium 6 |
| P)platinum rhodium 10－platinum | |
| N)nickel chromium triangle－nisiloy | |
| E)nickel chromium triangle－copper nickel | |
| □ install and fixed type | 1)non-fixed molded type |
| 2)fixed screw type | |
| 3)movable flange | |
| 4)fixed flange type | |
| 5)movable flange square type | |
| 6)fixed screw protect tube type | |
| □ junction box type | 2)splash proof type |
| 3)waterproof type | |
| 4)explosion suppression type | |
| □ design series number | 0)ø16mm protecting tube |
| 1)ø25mm protecting tube(double tubes) | |
| 2)ø16mm high aluminum tube(single tube) | |
| 3)ø20mm high aluminum tube |
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Upper temperature limit(tm℃)
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Test temperature(T℃ )
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Resistance(MΩ)
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| 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 |