Thermocouple Transmitter DT 45800

Temperature Measuring with Thermocouple Sensors, configurable via DIP Switch or USB

The TC Temperature Transmitter DT 45800 is used for measure industrial process signals. It converts Thermocouple sensor signals to isolated standard signals.

  • Measuring input for all TC temperature sensors
    more than 1800 standard ranges ready to use
  • Easy configurable via DIP switches
    or via USB interface without auxiliary power supply
  • Switchable Service Functions
    for an easy commissioning
  • 3-port isolation
    Protection against erroneous measurements due to parasitic voltages or ground loops
  • Extremely slim design
    6.2 mm slim housing for a simple and space saving DIN rail mounting
  • Optional In-Rail-Bus mounting rail connector
    allows for fast and economical installation
  • Protective Separation acc. to EN 61140
    Protects service personnel and downstream devices against impermissibly high voltage
  • 5 Years Warranty
    Defects occurring within 5 years from delivery date shall be remedied free of charge at our plant (carriage and insurance paid by sender)

The TC Temperature Transmitter DT 45800 is used for measure industrial process signals. It converts Thermocouple sensor signals to isolated standard signals.

Due to the easy setting of the calibrated measuring ranges via DIP switch the Transmitter is suitable for flexible use.

With the USB Programming-Kit DRAGOset the Transmitter can be configured and all data can be stored by a PC. In mode of programming no additionally auxiliary power is required.

The Commissioning Function, switchable on front panel, generates an output reference signal for testing and adjusting of the downstream signal path.

The auxiliary power can be supplied via the connection terminals or via the optional In-Rail-Bus connector. The status of power supply and sensor connection will be displayed by a LED on front.

Technical Data


   Thermocouple Sensor Standard Measuring range Span min.
  Type A W5Re-W20Re GOST 8.585 0 to 2500 °C 100 K
  Type B Pt30Rh-Pt6Rh IEC 584 +250 to 1800 °C 100 K
  Type C W5Re-W26Re ASTM E988 0 to 2300 °C 100 K
  Type D W3Re-W25Re ASTM E988 0 to 2300 °C 100 K
  Type E NiCr-CuNi IEC 584 -200 to 1000 °C 50 K
  Type J Fe-CuNi IEC 584 -200 to 1200 °C 50 K
  Type K NiCr-Ni IEC 584 -200 to 1350 °C 50 K
  Type L Fe-CuNi DIN 43710 -200 to 900 °C 50 K
  Type N NiCrSi-NiSi IEC 584 -200 to 1300 °C 50 K
  Type R Pt13Rh-Pt IEC 584 -50 to 1700 °C 50 K
  Type S Pt10Rh-Pt IEC 584 -50 to 1700 °C 50 K
  Type T Cu-CuNi IEC 584 -200 to 400 °C 50 K
  Type U Cu-CuNi DIN 43710 -200 to 600 °C 50 K
Measuring error < 0.3 K + 0.08 % meas. val.
Cold junction compensation Internal / OFF      Error of Cold junction < 1.5 K


  Current Voltage
Output signal 0 to 20mA, 4 to 20mA 0 to 5V, 0 to 10V
Load ≤ 12 V   (600 Ohm @ 20 mA) ≤ 5 mA   (2 kOhm @ 10 V)
Residual ripple < 10 mVrms
transfer range 0 to 102.5 %  (3.8 to 20.5 mA at output 4 to 20 mA) Transfer characteristic rising/falling
Error signal Sensor/wire break, error signal programmable

General data

Transmission error < 0.1 % full scale
Temperature coefficient1) < 100 ppm/K
Sampling rate 4/s
Response time T99 250 ms
Test voltage 3 kV AC, 50 Hz, 1 min Input against output against power supply
Working voltage 2)
(basic insulation)
600 V AC/DC for overvoltage category II and pollution degree 2 acc. to EN 61010-1
Protection against electric shock 2) Protective Separation by reinforced insulation acc. to EN 61010-1 up to 300 V AC/DC for overvoltage category II and contamination class 2 between input and output and power supply.
Ambient temperature Operation
Transport and storage
-25 °C to +70 °C
-40 °C to +85 °C
(-13 to +158 °F)
(-40 to +185 °F)
Power supply 24 V DC, voltage range 9.6 V to 31.2 V DC, approx. 0.8 W
EMC 3) EN 61326-1
ATEX DEMKO 16 ATEX 1685X    Ex II 3 G Ex nA IIC T4 Gc
IECEx    IECEx UL 16.0055X Ex nA IIC T4 Gc
UL E478692 USA/Canada Class I, Division 2 Groups A, B, C, D T4
Construction 6.2 mm (0.244") housing, protection type: IP 20
mounting on 35 mm DIN rail acc. to EN 60715
Weight Approx. 70 g
  1. Average TC related to full scale value in specified operating temperature range, reference temperature 23 °C
  2. For applications with high working voltages, ensure there is sufficient spacing or isolation from neighboring devices and protection against electric shocks.
  3. Minor deviations possible during interference

Block diagram

<p>Temperatur-Messumformer DT 45000<br>Temperature Transmitter DT 45000</p>



Terminal assignments

2 + Input TC
3 - Input TC
5 + Output
6 - Output
7 + Power supply (connected to In-Rail-Bus)
8 - Power supply (connected to In-Rail-Bus)


Captive plus-minus clamp screws
Wire cross-section max. 2.5 mm² / AWG 14
Stripped length 6 to 8 mm / 0.28 in
Screw terminal torque 0.8 Nm / 7 lbf in
Optional power connection via In-Rail-Bus (see accessories)


Product line

Item Order No.
TC Temperature Transmitter, programmable via USB and DIP switch DT 45800 S
TC Temperature Transmitter, programmable via USB and DIP switch, In-Rail-Bus for power supply DT 45800 B
Subject to change!
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