Temperature Transmitter DR 48

Temperature Measuring with Pt100-Sensors

The Temperature Transmitter DR 48 converts the sensor signal on input to temperature linear standard signal and makes it galvanic isolated available on output.

  • Cost optimized design
    Economical temperature measuring for standard applications with Pt100 sensor with 2-wire or 3-wire connection
  • Only 60 mm installation depth, 11.2 mm wide
    Can be installed in economical standard terminal boxes
  • Fixed ranges, easy to use
    Ready to use without any settings or adjustments
  • Zero/Span compensation on front panel
    for readjustment of sensor signal or measuring equipment
  • True 3-port separation
    Protection against erroneous measurements due to parasitic voltages or ground loops
  • High reliability and long-term stability
    New APT technology for signal processing
  • Protective Separation acc. to EN 61140
    Protects service personnel and downstream devices against impermissibly high voltage
  • Cross-connector for the auxiliary power supply
    Fast and economical installation
  • Unlimited use with 24 V AC/DC power supply
    Universally applicable for all measurement and industrial applications
  • 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 Temperature Transmitter DR 48 converts the sensor signal on input to temperature linear standard signal and makes it galvanic isolated available on output.

For applications where one measuring range only is used, the Temperature Transmitter DR 48 offers a cost-effective alternative.

A cross-connector for the auxiliary power supply ensures fast and easy installation. The slim housing with 11.2 mm width saves significant space on the DIN-rail. If required a measuring range compensation can be performed at the Zero/Scan potentiometers behind the front cover.

Analog signal processing guarantees precise measured values with short response times and outstanding signal reproduction at the output.

Protective Separation and the 24 V AC/DC power supply make the Temperature Transmitter DR 48 universally applicable for all measurement and industrial applications, as well as for building automation.

Technical Data

Input

Sensor Pt 100, 3-wire / 2-wire with bridge terminal 1 to 3
Measuring range Fixed ranges within -100 to +450 °C, see order information
Input error max. < 0.1 K + 0.05 % of span
Sensor wire resistance 25 Ohm / wire of 3-wire sensor connection
Sensor current 1 mA

Output

Output signal 0 to 20 mA, 0 to 5 V, 0 to 10 V, see order information
4 to 20 mA, 1 to 5 V, 2 to 10 V
Load Current output
Voltage output
≤ 500 Ohm
≥ 2 kOhm
Residual ripple < 10 mVrms

General Data

Transmission error < 0.1 % full scale
Temperature coefficient 1) < 0.025 %/K
Zero/Span compensation ± 3 %
Response time T99 < 2 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 electrical shock 2) Protective separation according to EN 61140 by reinforced insulation in accordance with EN61010-1 up to 300 V AC/DC for overvoltage category II and pollution degree 2 between all circuits.
Ambient temperature Operation
Transport and storage
–20 °C to +60 °C    (–4 °F to +140 °F)
–35 °C to +85 °C    (–31 °F to +185 °F)
Power supply 24 V AC/DC, ± 15 % AC: 48 to 62 Hz, approx. 2 VA
DC: approx. 0.7 W
EMC 3) EN 61326 -1
Construction 11.2 mm (0.44") housing, protection class: IP 20
mounting on 35 mm DIN rail acc. to EN 60715
Weight Approx. 50 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

Dr48

Dimensions

GehaeuseTinyZeroSpanLed

Terminal assignments
Wire cross-section max. 2.5 mm²

1 Input Pt 5 Output +
2 Input Pt 6 Output -
3 Input 3-wire 7 Power supply ~
    8 Power supply ~

Downloads

Product line

Devices Order No.
Temperature-Transmitter DR 48 P Pt 100 DR 48 P - X X
Input 0 to +50 °C   0  
0 to +100 °C   1  
0 to +200 °C   2  
0 to +300 °C   3  
0 to +400 °C   4  
-50 to +150 °C   5  
-50 to +100 °C   6  
-50 to +50 °C   7  
further see table   ?  
  Output 0 to 20 mA     2
4 to 20 mA     4
0 to 5 V     5
1 to 5 V     8
0 to 10 V     6
2 to 10 V     7
Cross-connector (2 pcs.)
for looping through the power supply for up to 10 units, splittable

DZU 0801
   
Subject to change!
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