Shanghai Chenzhu Instrument CO., LTD.
Shanghai Chenzhu Instrument CO., LTD.
  • Intrinsic Safety RTD TC Temperature Transmitter
  • Intrinsic Safety RTD TC Temperature Transmitter
  • Intrinsic Safety RTD TC Temperature Transmitter
  • Intrinsic Safety RTD TC Temperature Transmitter

Intrinsic Safety RTD TC Temperature Transmitter

Isolated temperature transmitter,deliver the field thermocouple(TC) or thermal resistance(RTD) signal by digital linearization, converted to linearly with temperature of 4~20mA current and output isolatiedly. 


Intrinsically safe temperature transmitter with RTD input has sensor disconnection alarm, TC input has sensor disconnection alarm and cold junction compensation automatically. By special software parameters such as range of transmitter, indexing number configurated.

Parameter of Intrinsic Safety RTD TC Temperature Transmitter


CZWB110-EXCZWB120-EXCZWB130-EX
Input signalPt100,Cu100,Cu50T、E、J、K、N、R、S、BPt100,Cu100,Cu50
T、E、J、K、N、R、S、B
Compensation range
-20℃~+60℃-20℃~+60℃
Cold junction compensation accuracy
±1℃±1℃
Output current4~20mA4~20mA4~20mA
Current output load resistanceRL≤(Ue-12)/0.021RL≤(Ue-12)/0.021RL≤(Ue-12)/0.021
Alarm indicationIH≈20.8mA/IL≈3.8mAIH≈20.8mA/IL≈3.8mAIH≈20.8mA/IL≈3.8mA
Supply voltage(Ue)12~28V DC12~28V DC12~28V DC
Power supply modeLoop poweredLoop poweredLoop powered
Temperature drift0.01%F.S./℃0.01%F.S./℃0.01%F.S./℃
Response timeReach 90% of final value in 1sReach 90% of final value in 1sReach 90% of final value in 1s
Dielectric strength(between input and output )1500V DC;1min1500V DC;1min1500V DC;1min
Insulation resistance≥100MΩ≥100MΩ≥100MΩ
Electromagnetic compatibilityGB/T 18268(IEC 61326-1)GB/T 18268(IEC 61326-1)GB/T 18268(IEC 61326-1)
Ambient temperatureT4:-40℃~+60℃
T6:-40℃~+50℃
T4:-40℃~+60℃
T6:-40℃~+50℃
T4:-40℃~+60℃
T6:-40℃~+50℃
EX markingEx iaⅡC T4/T6 GaEx iaⅡC T4/T6 GaEx iaⅡC T4/T6 Ga


Wiring Diagram of Intrinsic Safety RTD TC Temperature Transmitter

Intrinsic Safety RTD TC Temperature Transmitter

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