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WZPK2-441 Explosion-proof and intrinsic safety type thermocouple is a temperature sensor, widely applied in the chemical industrial automatic control system. It transfers the object temperature to electrical signal, and sends it to display, record and adj
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In chemical plant, the production field is often accompanied with various inflammable, explosive chemical gas & steam, it’s not safe to use common thermocouple which is easy to result in gas explosion. Therefore, explosion-proof and intrinsic safety type thermocouple is necessary. Our explosion-proof and intrinsic safety type thermocouple are used in these dangerous occasions of which temperature group zone are dII BT4 ~ dII CT6, ib II BT4, ia ll BT4, ia ll CT6.
Model | Graduation | Range ℃ | Accuracy | Allowable deviation |
WRN,WRNK WRN2,WRNK2 |
K | 0~800℃ | I | ±1 5℃ or ±0. 004 t |
Ⅱ | ±2.5℃ or ±0.0075t | |||
WRE,WREK WRE2,WREK2 |
E |
0~600℃ | I | ±1.5℃ or ±0.004t |
Ⅱ | ±2 5℃ or ±0 0075 t |
Specifications
Model | Graduation | Measure range | Structure | Protection tube diameter (mm) | Insertion length l(mm) | Response time T0.5s | Nominal pressure (MPa) | Exd grade |
WRNK-240 WRNK2-240 | K | 0~800 | M27×2
Fixed thread | Φ8
Φ6
Φ5 |
Based on flange size | ≤8
≤6
≤4 | 10 | dIIBT4 dIIBT6 or dlICT4 dIICT6 |
WREK -240 WREK2-240 | E | 0~600 | ||||||
WRNK- 440 WRNK2-440 | K | 0~800 |
Fixed flange | 6.4 | ||||
WREK-440 WREK2-440 | F | 0~600 |