Temperature Transmitter DR 4700

Temperature Measuring with Pt100/Pt1000-Sensors

The Temperature Transmitter DR 4700 converts the sensor signal on input to temperature linear standard signal 0/4 to 20 mA or 0 to 5/10 V.

  • Extensive range selection
    Measurement range within -100 to +600 °C for Pt100 and Pt1000 sensors
  • Easy selection of configuration
    Measurement range, type of sensor, sensor connection and output signal can be easily set by using DIP switch
  • Universal power supply for 20 to 253 V AC/DC
    Applicable world-wide for all common supply voltages
  • 3-port isolation
    Protection against erroneous measurements due to parasitic voltages or ground loops
  • Ultra small sized housing
    12.5 mm housing with plug-in screw terminal blocks
  • Protective Separation
    Protects service personnel and downstream devices against impermissibly high voltage
  • Maximum reliability
    No maintenance costs
  • 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 4700 converts the sensor signal on input to temperature linear standard signal 0/4 to 20 mA or 0 to 5/10 V.

Due to the easy selection of the input and output ranges, the new universal power supply and the ultra-small housing the Temperature Transmitter is suitable for flexible use. High reliability and Protective 3-Port-Separation are further characteristics that make the DR 4700 unrivaled.

The configuration of measurement range can be easily set within -100 to +600 °C by using DIP switch. Subsequent readjustment after range selection or measured range compensation can then be performed at the Zero/Span potentiometers on the front panel. Alternatively, the Temperature Transmitter is also available customer-specific adjusted.

The small housing with 12.5 mm width saves space in your switch cabinet and facilitates by the practical plug-in screw terminal blocks the assembly. For range setting a simple housing unblocking is installed which makes it possible to reach easily all control elements on the mounting rail.

The new universal power pack for 20 to 253 V AC/DC means the DR 4700 can be used anywhere in the world, with all mains power supplies. The unit’s high efficiency contributes significantly to reducing the unit’s own heat generation. This is reflected in extremely high reliability and long-term stability.

Technical Data

Input

Input signal Pt 100 / Pt 1000, switchable
Sensor connection 2-wire-, 3-wire-, 4-wire
Measuring range  
    Zero –100 °C,– 50 °C, 0 °C, 50 °C, switchable
with Potentiometer ZERO 0 to 50 °C adjustable
    Span DR 4700 AG:   50 K, 100 K, 200 K, 300 K, switchable
DR 4720 AG:   25 K, 50 K, 100 K, 150 K, switchable
with Potentiometer SPAN 100 to 200 % of span adjustable
Sensor wire resistance < 25 Ohm per wire
Sensor current 1mA / 0.1 mA
Sensor diagnostic Sensor / wire break

Output

Output signal 0 to 20 mA, 0 to 5 V, 0 to 10 V      switchable
4 to 20 mA, 1 to 5 V, 2 to 10 V
Load Current output
Voltage output
≤ 12 V (600 Ohm at 20 mA)
≤ 5 mA (2 kOhm at 10 V)
Residual ripple < 10 mVrms
Sensor break action Current output
Voltage output
≥ 22 mA
≥ 11 V

General Data

Linearity < 0.2 % of measuring span
Temperature coefficient 1) < 150 ppm/K
Calibration Max. of ± 0.1 °C or 0.1 % of measuring span
Response time T99 < 20 ms
Test voltage 4 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 EN 61010-1 up to 300 V AC/DC for overvoltage category II and pollution degree 2 between all circuits.
Ambient temperature Operation
Transport and storage
–10 to +60 °C (+14 to +140 °F)
–20 to +80 °C (–4 to +176 °F)
Power supply 20 to 253 V AC/DC, AC 48 to 62 Hz, approx. 3 VA
DC approx. 1.5 W
EMC 3) EN 61326-1
Construction 12.5 mm (0.49") housing, protection type: IP 20
mounting on 35 mm DIN rail acc. to EN 60715
Weight Approx. 100 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

Factory setting: Input: Pt100, 4-wire, Output: 0 to 20 mA

Block diagram

Dr4700

Dimensions

GehaeuseHighFunctionality

Terminal assignments
Wire cross-section max. 2.5 mm², Multi-wire connection max. 1 mm² (two wires with same cross-section)

1 Input Pt(+) 5 Output +
2 Input Pt(-) 6 Output -
3 3-wire (+) 7 Power supply ~
4 4-wire (-) 8 Power supply ~

Downloads

Product line

Devices Order No.
Temperature transmitter, min. span 50 K
configurable (0 to 100°C pre adjusted)
DR 4700 AG
Temperature transmitter, min. span 25 K
configurable (0 to 100°C pre adjusted)
DR 4720 AG
Subject to change!
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