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  • Measuring signals from temperature sensors (resistance temperature detectors – RTD, thermocouples – TC), instrument shunts and sensors with unified current output
  • Transfer measurement results over RS-485 interface, protocol Modbus (RTU).
  • Three-wire or four-wire RTD connection.
  • Device conversion function – linear or square-root extracting.
  • Cold junction temperature compensation:
    • internal sensor;
    • receiving from external meter over RS-485 interface, Modbus RTU protocol
  • Configurable analog input.
  • Continuous sensor fault detection.
  • Unified current output 0..5, 0..20 or 4..20 mA
  • Five-digit green LED display with 10 mm symbol height.
  • 2 optorelay for AC/DC circuits 48V/0,4A.
  • Installation on DIN rail, 35 mm.

 

Specification

TC:

K, L, T, S, B

RTDs:

  • platinum(W100=1,3850 и W100=1,3910)
  • copper(W100=1,4260 и W100=1,4280)

 

Pt50, Pt100, Pt500

Cu50, Cu100

Current output signal range, mA

 0..5; 0..20; 4..20
Baud rate, kbit/s 9,6; 19,2; 38,4
Power supply (12..24) VDC
Operating temperature range +5°С..+50°С
Dust and moisture protection IP20
Overall dimension (Ш×В×Д), мм 53×98×58

 

Main measuring errors

For ТК-6-2 modification:

TC temperature measuring absolute error, °С, up to:

  • S, B
  • in negative temperatures range
    • K, T
    • L
  • in positive temperatures range
    • K, T
    • L
  
5,0
 
±(0,1·10-2·|t|+0,5)
±(0,1·10-2·|t|+0,25)
 
±(0,05·10-2·|t|+0,2)
±(0,05·10-2·|t|+0,1)
RTD temperature measuring absolute error, °С, up to:  
 ±(0,2·10-2·|t+273|+0,1)
Unified current signal measuring reduced error, %, up to ±0,25
Instrument shunts measuring reduced error, %, up to ±0,5

 

For TK-6-2-P modification

TC temperature measuring absolute error, °С, up to:

  • S, B
  • in negative temperatures range
    • K, T
    • L
  • in positive temperatures range:
    • K, T
    • L
  
5,0
 
±(0,1·10-2·|t|+0,5)
±(0,1·10-2·|t|+0,25)
 
±(0,05·10-2·|t|+0,2)
±(0,05·10-2·|t|+0,1)
RTD temperature measuring absolute error, °С, up to:

  • in negative temperatures range
    • Cu50, Pt50
    • Cu100, Pt100
    • Pt500
  • in positive temperatures range
    • Cu50, Pt50
    • Cu100, Pt100
    • Pt500

  
±(0,05·10-2·|t+273|+0,5)
±(0,05·10-2·|t+273|+0,25)
±(0,05·10-2·|t+273|+0,1) 
  
±(0,05·10-2·|t+273|+0,2)
±(0,05·10-2·|t+273|+0,1)
±(0,05·10-2·|t+273|+0,05)
Unified current signal and instrument shunt measuring reduced error, %, up to ±0,25

Ordering designation

Digital measuring device  TK-6-2-X–Y–Z, где:

X – modification:

“P” – high precision;

no marking – standard precision.

Y – наличие интерфейса RS-485:

“R” – with RS-485;

no marking – without RS-485.

Z -наличие токового выхода:

“C” – with current output;

no marking – without current output.