TR Series Thermal Resistance Signal Isolator
Function
Function: Accept the thermocouple signal from the field, and output the standard current/voltage signal to the control room, PLC, DCS and display instrument through isolation; Features: DIN rail independent installation mode; input, output, power supply three ports Highly reliable isolation.
2.SPECIFICATION
2.1Input:
Input signal: PT100, Cu50 and other thermal resistance signals;
Thermal resistance excitation voltage: 2.5V;
Allow line resistance: ≤100Ω. 2.2 output:
Output load resistance: RL ≤ 500Ω (when the output is a current signal);
RL ≥ 1KΩ (when the output is a voltage signal);
2.3 Parameters:
Power supply: DC24V, ±10%
Current consumption: ≤30mA (1 input 1 output, 24V power supply, 20mA output)
≤50mA (1 in 2 output, 24V power supply, 20mA output)
≤60mA (2 in 2 out, 24V power supply, 20mA output)
Temperature drift: 0.005% F.S./°C (-20°C~+55°C)
Response time: ≤10mS (0-90%) (TYP)
Insulation strength: 1500V AC / 1min (between input, output and power)
Insulation resistance: ≥100MΩ (between input, output, and power)
2.4 Operating temperature range: -20 ~ +55 ° C
2.5 Electromagnetic compatibility: In line with GB/T 18268 (IEC61326-1) 2.6 Applicable field devices:Two-wire, three-wire thermal resistance.
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