TLK33 Digital Controller for Peltier cells

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Digital controller, 1 output with automatic inversion of polarity for direct command PELTIER cells, from 12 to 24 VDC, up to 2 alarm outputs to drive SSR


  • 78x35 mm panel mount controller for Peltier cells with single display
  • 1 probe input and 1 Solid state relay output
  • Optionals: 2 digital inputs, 2 SSR drive outputs and RS485 serial port

Process inputs:
1 input for temperature probes:
 - TC type: J, K, S
 - IR probes (J, K type)
 - RTD : PT100 IEC
 - PTC KTY81-121 (990 Ω @ 25 °C)
 - NTC 103AT-2 (10KΩ @ 25 °C)
 - Voltage (mV) signals: 0...50 mV, 0...60 mV,
   12 ...60 mV
 - Voltage (V) signals: 0..1V, 0/1...5V , 0/2...10V
 - Current (mA) signals (shunt): 0/4...20 mA
2 digital inputs:
- Free Voltage

Process outputs:
Main Output
Solid State output 12... 24 VDC (same as power supply)
High power (max 7 A)
For direct connection to Peltier cells
Automatic polarity inversion
Auxilary outputs (optional):
Up to 4 digital outputs according to the model selection:
2 SSR drive outputs (10mA/10VDC)

Power supply:
- 12... 24 VDC ± 10%
Auxiliary power supply for external transmitters (optional):
- 12 VDC /20 mA max.

Control functions:
Control strategies :
PID double action (Heat/Cool) with two degrees of freedom alghoritm
- SELF-TUNING function
- FUZZY OVERSHOOT CONTROL automatic calculation
up to 4 Programmable setpoints
Bumpless manual control
Up to 2 configurable alarms + measurement error alarm
Total Accuracy:
± 0.5 % fs
t/c S: ± 1% fs

Communication and configuration:
Serial communication port: insulated RS485 Modbus-RTU Slave
  For PC configuration, supervision
  or connection to third party devices.
Communication on TTL port to:
  Universal programming key

78x35 mm, depth 75.5 mm
- 2,5 mm² screw terminals block
IP65 front frame protection, with gasket
1 red display with 4 digits, height: 12 mm

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