Temperature Input Analog Output Signal Isolator Thermocouple to 4-20mA Converter

Product Description

Brief description:

This apparatus transmits the in thermocouple(TC) or thermal resistance(RTD) signal to isolated current or voltage signal in a circuit or two isolated circuits, and the input, output, and power supply are galvanically isolated from each other.

It can be used together with modular instrumentation and DCS, PLC and other systems,to offer signal isolation, signal conversion, signal distribution, signal processing and otherfunctions to field instrument, thereby enhancing the immunity of automatic control system in the industrial production process, and ensuring system stability and reliability. This product has many varieties, such as 1 in/1 out, 1 in/2 out,,2 in/2 out, with input/output magnetic isolation.

Compared with other similar products, this apparatus has the advantages of fast response time, low power loss and quite well temperature characteristics.

 

Panel light indication:

Light indicating: PWR (green) remains shining during normal operation;

Light indicating: ALM light glitters (red) at occurrences of input signal fault, and remains shining at occurrence of input excess.

 

Input signal:

Thermocouple:K, E, S, B, J, T, R, N.

2/3-wire RTD resistance:Pt100, Cu100, Cu50, BA2, BA1 etc.

Signal type and range can be specified at your order and may also be programmed by user.

Cold junction compensation range:-20 ºC~+60 ºC.

Cold junction compensation accuracy:±1 ºC (Preheated for 10 minutes).

 

Mainly technical parameters:

 

Transmitting accuracy		±0.1%F.S(25ºC±2ºC)
Rise time		≤ 1 ms
Settling time		≤ 200ms
Influence of ambient temperature		< 30 ppm/ºC
Ripple		<1 mV
Frequency range		0~300 Hz
Input resistance		current: ≤60 Ω   voltage: 0~5V:≥1MΩ;  0~10V:≥2MΩ
Output load capacity
DC current: 0~10mA: ≤700Ω; 4~20mA: ≤600Ω;  0~±10mA: ≤1kΩ; 0~±20mA: ≤500Ω DC voltage: 0(1)~5V: ≥1MΩ; 0~10V: ≥2MΩ;0~±5V: ≥1MΩ;  0~±10V: ≥2MΩ
Please specify your requirements before order if greater output load capacity is needed.
Power supply voltage range:
18~32V DC (Recommended voltage:24V DC) 85~265V AC(OR 120~360V DC)
Power consumption	Single output		Double output
24V DC	0.4W		0.6W
220V AC	1.0VA		1.2VA
Insulation resistance		≥ 100 MΩ (Input /Output /Power)
Dielectric strength
≥ 2500 V AC (Input /Output /Power, 1mA leakage current, 1 minute test time)
Electromagnetic compatibility			IEC 61000-4