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Intrinsic Safety RTD TC Temperature Transmitter

Name: Intrinsic Safety RTD TC Temperature Transmitter
Brand: Shanghai Chenzhu Instrument CO., LTD.
Price: 100 USD

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.

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Parameter of Intrinsic Safety RTD TC Temperature Transmitter

	CZWB110-EX	CZWB120-EX	CZWB130-EX
Input signal	Pt100，Cu100，Cu50	T、E、J、K、N、R、S、B	Pt100，Cu100，Cu50 T、E、J、K、N、R、S、B
Compensation range		-20℃~+60℃	-20℃~+60℃
Cold junction compensation accuracy		±1℃	±1℃
Output current	4~20mA	4~20mA	4~20mA
Current output load resistance	RL≤（Ue-12）/0.021	RL≤（Ue-12）/0.021	RL≤（Ue-12）/0.021
Alarm indication	IH≈20.8mA/IL≈3.8mA	IH≈20.8mA/IL≈3.8mA	IH≈20.8mA/IL≈3.8mA
Supply voltage(Ue)	12~28V DC	12~28V DC	12~28V DC
Power supply mode	Loop powered	Loop powered	Loop powered
Temperature drift	0.01%F.S./℃	0.01%F.S./℃	0.01%F.S./℃
Response time	Reach 90% of final value in 1s	Reach 90% of final value in 1s	Reach 90% of final value in 1s
Dielectric strength(between input and output )	1500V DC；1min	1500V DC；1min	1500V DC；1min
Insulation resistance	≥100MΩ	≥100MΩ	≥100MΩ
Electromagnetic compatibility	GB/T 18268（IEC 61326-1）	GB/T 18268（IEC 61326-1）	GB/T 18268（IEC 61326-1）
Ambient temperature	T4：-40℃~+60℃ T6：-40℃~+50℃	T4：-40℃~+60℃ T6：-40℃~+50℃	T4：-40℃~+60℃ T6：-40℃~+50℃
EX marking	Ex iaⅡC T4/T6 Ga	Ex iaⅡC T4/T6 Ga	Ex iaⅡC T4/T6 Ga