TLK41 Controller with universal input

New product
More info

TLK 41 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 features independently in the event of process disturbance and Set Point variations. Furthermore, the instrument allows for RS485 serial communication using MODBUS-RTU communication protocol and a transmission speed up to 38.400 baud. The process value is visualized on 4 red displays, while the output status is displayed by 4 LED indicators. The instrument has also a programmable 3 LED shift index. The instrument can store 4 Set Points and can have up to 4 outputs: relay type or Voltage type to drive solid state relays (SSR).


  • 48x48 mm panel mount controller with single display,
  • 1 probe input 
  • Up to 4 relay outputs
  • Optionals: Current transformer input and RS485 serial port

Process inputs:
1 universal 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
1 Current transformer input (50 mA max.)

Process outputs:
Up to 4 digital outputs according to the model selection:
- Relays SPST-NO (5 A-AC1, 2A-AC3/250 VAC)
- SSR drive voltage output (from 24VDC @ 1mA to 15mA @ 4VDC)
Out2, Out3, Out 4(same as Out3):
- Relays SPST-NO (3 A-AC1, 1 A-AC3/250 VAC)
- SSR drive voltage output (from 24VDC @ 1mA to 15mA @ 4VDC)

Power supply:
- 24 VAC/VDC
- 100... 240 VAC ±10%
Frequency: 50/60 Hz
Auxiliary power supply for external transmitters (optional):
- 12 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 + heat break alarm
Total Accuracy: ± (0,2 % fs + 1 digit); PTC/NTC: ± (0,5 % fs +
1 digit)

Communication and configuration
- Serial communication port:
  Insulated RS485 Modbus-RTU Slave for:
  * PC configuration
  * Connection to third party devices
- Communication on TTL port to:
  * Universal programming key
  * Remote display

48x48 mm, depth 98 mm
- 2,5 mm² screw terminals block
IP65 front frame protection, with gasket
1 red display with 4 digits, height: 12 mm

Contact Us

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


Please fill details below and one of our representative will contact you shortly. 

30 other products in the same category: