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Temperature and Humidity Controller with Real Time Data Logging – HTC-3003

Bar Graph Indicator Model BGI-144

Process Control Instruments

Temperature and Humidity Controller with Real Time Data Logging – HTC-3003

HTC-3003: Microcontroller based Temperature and %RH PID-On/Off controller (2 AI + 2 DI and 4 DO) with RTC, Printer port, RS-485 Serial port and Extra 256KB memory bank.

Technical Specifications :

ParametersDescription
No. of Inputs2 (one each for Temperature (T) and % Relative Humidity (%RH)).
InputT + RH sensor probe or Transmitter Refer Table 1.
Range-40.0 to 60.0 oC or 0.0 to 60.0 oC , 0.0 to 150.0oC and 0.0 to 100.0 %RH. (subject to type of sensor)
Resolution0.1 oC / 0.1 %Rh
AccuracyAbsolute to the input
Display4 digit 0.5" Red 7-segment LED display for Process Temperature.
(HTC-3003)4 digit 0.5" Red 7-segment LED display for Process Humidity.
4 digit 0.5" Green 7-segment LED display for Set Temperature.
4 digit 0.5" Green 7-segment LED display for Set Humidity.
4 digit 0.5" Red 7-segment LED display for RTC.
TuningManual setting of PID values, On/Off hysteresis, Alarm values and snooze time.
Open Sensor IndicationDisplay shows Fault messages (OPEn/O.r.) and control outputs will be turned OFF.
SettingsUsing front panel membrane keyboard to set the various values.
Memory BackupRetention of PID and set values in the non-volatile memory in the event of power failure.
Control ActionPID for Air Heater and Boiler heater. On-Off with programmable hysteresis for Compressor and Dehumidifier.
Control OutputFor Air Heater, Boiler Heater, Compressor and Dehumidifier in the form of DC pulses 0 to 12 VDC to drive external SSRs.
Alarm Outputs2 Extra Relay outputs (One each for T and Rh) can be used as High/Low alarms
External InputPotential free contact input for water level & door switch.
Water level switch is interlocked with control outputs.
Data LoggingReal Time with programmable log time and storage time.
Data Storage256K memory bank - sufficient to store 3600 records
(log interval = 1 to 99 minutes)
Serial InterfaceSerial port (9 pin D connector) for 80 column dot-matrix serial printer (EPSON or Equivalent).
Serial port (RS485 - 2 wires) on Modbus RTU protocol for PC or PLC
Supply90 - 250 VAC ± 10% (10VA), 50/60Hz.
Size192 x 96 x 200 mm
Panel cut out186 x 92 mm +/- 0.5 mm.
EnclosureMetal Powder coated with ABS front bazel and polycarbonate graphics.
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