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Isolation Amplifier DN 2300

Isolation of Standard Signals with ZERO/SPAN Adjustment

The Isolation Amplifier DN 2300 is used for electrical separation of 0(4) to 20 mA signals.

  • Zero/Span Adjustment
    Measurement range compensation on the front panel
  • Universal Power Pack 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
  • High accuracy
    No falsification of measured signal
  • 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 Zero/Span adjustment on the front panel, the new universal power pack, and the compact design all contribute to its application flexibility. High reliability and Protective Separation are further characteristics that contribute to fault-free equipment operation.

The slim housing with 12.5 mm width saves space in the switch cabinet and facilitates by the practical plug-in screw terminal blocks the assembly.

The new universal power pack for 20 to 253 V AC/DC means the DN 2300 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. A green LED on the front of the unit has been provided to monitor the power supply.

Product line

Product line DN 2300
Devices Order No.
Isolation Amplifier with Zero/Span-compensation
Input: 0(4) to 20 mA, Output: 0(4) to 20 mA
DN 2312 AG

Data sheet archive:

The products are no longer available!

Technical Data


Input signal 1) 0(4) to 20 mA
Input resistance Approx. 25 Ohm
Overload ≤ 200 mA


Output signal 1) 0(4) to 20 mA
Load ≤ 12 V (600 Ohm at 20 mA)
Linear transmission range  –2 to +110 %
Residual ripple < 10 mVrms

General Data

Transmission error < 0,1 % full scale
Temperature coefficient 2) < 100 ppm/K
Zero/Span compensation ± 5 %
Cut-off frequency -3 dB 1 kHz
Response time T99 0.7 ms
Test voltage 4 kV, 50 Hz, 1 min., input against output against
power supply
Working voltage 3)
(Basic Insulation)
600 V AC/DC for overvoltage category II and pollution
degree 2 acc. to EN 61010-1
Protection against electrical shock 3) 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
–20 °C to +70 °C    (-4 to +158 °F)
–35 °C to +85 °C    (-31 to +185 °F)
Power supply 20 to 253 V AC/DC, AC 48 to 62 Hz, approx. 2 VA
DC approx. 1.0 W
EMC 4) EN 61326 -1
Construction 12.5 mm (0.49") housing, protection class: IP 20
mounting on 35 mm DIN rail acc. to EN 60715
Weight Approx. 100 g
  1. Other signals on request.
  2. Average TC related to full scale value in specified operating temperature range, reference temperature 23 °C
  3. For applications with high working voltages, ensure there is sufficient spacing or isolation from neighboring devices and protection against electric shocks.
  4. Minor deviations possible during interference

Block diagram


Terminal assignments

  • 1 + Input current
  • 2 − Input current
  • 3 -
  • 4 -
  • 5 + Output
  • 6 − Output
  • 7 Power supply AC/DC
  • 8 Power supply AC/DC

Pluggable screw clamp terminals
Wire cross-section max. 2,5 mm², Multi-wire connection max. 1 mm² (two wires with same cross-section)

Subject to change!

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