Elegant appearance, easy to operate and compact in size.
Highly accurate and sturdy in operation.
User programmable settings.
Dual display for simultaneous indication of T and RH.
Field proven Algorithm, tested successfully for various AHU / HVAC control applications.
Input from T+RH Transmitter
4-20 mA from T + Rh transmitter
(both the inputs can be derived from Libratherm make)
Input from T+RH Direct Sensor
(0-1)V, (0-3.3)V and/or direct Pt-100 sensor.
(Like Hygroclip-XD or HTS-220/HTS-440)
0.0 °C to 60.0 °C for temp. (Optional upto 80.0 °C)
& 0.0 to 100.0 % for RH. (Programmable Span Hi and Span Lo)
0.1 °C for Temp. and 0.1 % for RH
+/- 0.3oC for Temp. and + / - 0.5% for RH.
(Subject to accuracy of the sensor/transmitter used in the system)
4-digit 0.3" Red 7-segment display for Temp. in °C.
4-digit 0.3" green 7-segment display for RH in %.
Front Panel LED indications for Control outputs and alarms.
PID - User selectable Direct and Reverse action.
(In DIRECT action the control output increases as the process value approaches towards the set value and
In REVERSE action the control output decreases as the process value approaches towards the set value)
a) Dual 4-20 mA or 0-10VDC/0-5VDC for T and RH control
b) Dual DC pulse (0 to 12)VDC - for T and RH (PID + On-Off)
Set points PID and On-Off hysteresis values for T and Rh are individually programmable through key board.
High and Low settable for each T and RH with programmable Hysteresis.
2 sets of relay contacts - (C1-NO1), (C2-NO2)
Manual tuning of PID values.
Retention of PID and Set values in the built in non-volatile memory in case of power failure and
automatic re-execution of control on power resumption.
Serial Interface (Optional feature)
Two wire RS485 on Modbus RTU Protocol for PC/DCS/PLC/BMS interface (in slave mode with user programmable ID).
96W x 48H x 120D mm.
92W x 44H mm. +/- 0.5 mm.
ABS plastic with polycarbonate front graphic.
Input : 2 X 4-20mA, Output : 2 x SSR + 2 x Analog Output + 2 x Relay
Input : 2 X 4-20mA, Output : 2 x SSR + 2 x Analog Output + 2 x Relay + RS-485
Input : 0 to 3.3V + Pt-100, Output : 2 x SSR + 2 x Analog Output + 2 x Relay
Input : 0 to 3.3V + Pt-100, Output : 2 x SSR + 2 x Analog Output + 2 x Relay + RS-485