TLK49 Controller with programmable input

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TLK 49 is a “single loop” digital microprocessor-based controller, with ON/OFF, Neutral Zone ON/OFF, PID single action, PID dual action (direct and reverse) control and with AUTO-TUNING FAST function, SELF-TUNING function and automatic calculation of the FUZZY OVERSHOOT CONTROL parameter for PID control. The PID control has a particular algorithm with TWO DEGREES OF FREEDOM that optimises the instrument’s features independently in the event of process disturbance and Set Point variations. The process value is visualized on 4 red display, the Set value is visualized on 4 green display while the outputs state is indicated by 3 led. The instrument provides for the storage of 4 Set Points and can have up to 3 outputs: relay type or can drive solid state relays type (SSR).


  • 48x48 mm panel mount controller with dual display
  • 1 probe input
  • up to 3 relay outputs

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

Process outputs:
Up to 3 relay outputs according to the model selection:
Out1, Out2:
- Relays SPST-NO (8 A-AC1,3 A-AC3 / 250 VAC)
- SSR drive voltage output (8mA/ 8VDC)
- Relays SPST-NO (5 A-AC1, 2 A-AC3 / 250 VAC)
- SSR drive voltage output (8mA/ 8VDC)

Power supply:
- 24 VAC/VDC
- 100... 240 VAC ±10%
Frequency: 50/60 Hz
Auxiliary power supply for external transmitters (optional):
- 10 VDC / 20 mA Max.

Control functions:
Control strategies :
ON/OFF with neutral zone
PID single or double action (Heat/Cool)
  with two degrees of freedom alghoritm
- SELF-TUNING function
- FUZZY OVERSHOOT CONTROL automatic calculation
Soft start
Bumpless ramp for set point change
Up to 3 configurable alarms + loop break alarm
Total Accuracy: ± 0,5 % fs

Communication and configuration:
- Communication on TTL port to:
  * Universal programming key
    for PC configuration
  * Remote display

48x48 mm, depth 98 mm
- 2,5 mm² screw terminals block
IP65 front frame protection, with gasket
2 displays with 4 digits, red and green colour, height: 7 mm

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“Industrial Technical Services is a single source Instrumentation and Automation company. We provide certified calibrations, PLC programming, custom controls and Panels”.


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