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D |
Electric unit combination meter |
B |
Transmission unit |
W |
temperature |
□ |
3)two-wire transfer temperature transmission
4) two-wire transfer millivoltage transmission |
□ |
1)thermocouple
2)thermal resistor
3)temperature differential of thermocouple
4) temperature differential of thermal resistor |
□ |
1)E or Cu50
2)K or Cu100
3)S or Pt50
4)B or BA2Pt100 |
□ |
O/B Improved Program Number |
□ |
ia Intrinsically safe explosion-proof type
d general type( if do not mark explosion-proof type) |