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Isolation Amplifier DN 2000

Isolation and Conversion of Standard Signals

The Isolation Amplifier DN 2000 is used for isolation and conversion of 0 to 20 mA, 4 to 20 mA and 0 to 10 V standard signals.

  • Calibrated signal setting
    Input and output range can be set by using DIP switch – without any further adjustment
  • Universal Power Supply for 20 ... 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 Isolation Amplifier DN 2000 is used for isolation and conversion of 0 to 20 mA, 4 to 20 mA and 0 to 10 V standard signals.

Due to the calibrated selection of the input and output ranges, the new universal power supply and the ultrasmall housing the Isolation Amplifier is suitable for flexible use. The high reliability and the protective separation are further features, which ensure a safe system operation.

The desired input and output range can be easily set by using DIP switch and due to the calibrated range selection no further adjustment is necessary. Also the cutoff frequency can be adapted to the measurement task by using the DIP Switch. Alternatively, all signal combinations are also available in the form of fixed range units.

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. A simple housing latch has been provided for range setting purposes to make all the operating elements, including those on the DIN-rail, easily accessible.

The new universal power pack for 20 ... 253 V AC/DC means the DN 2000 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.

Technical Data


Input signal 0...20 mA, 4...20 mA, 0...10 V, calibrated switchable
Input resistance Current input
Voltage input
22 Ohm
1 MOhm
Input capacitance Approx. 1 nF
Overload Current input
Voltage input
≤ 200 mA
Voltage limitation via 30 V Z-Diode, max. continuous current 30 mA


Output signal 0...20 mA, 4...20 mA, 0...10 V, calibrated switchable
Load Current output
Voltage output
≤ 12 V (600 Ohm at 20 mA)
≤ 10 mA (1 kOhm at 10 V)
Linear transmission range –2 ... +110 %
Residual ripple < 10 mVrms

General Data

Transmission error < 0.1 % full scale
Temperature coefficient 1) < 50 ppm/K
Cut-off frequency -3 dB 1 kHz,     DN 2000 switchable to < 30 Hz
Response time T99 0.7 ms     20 ms
Test voltage 4 kV, 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
–20 °C to +70 °C
–35 °C to +85 °C
Power supply 20 ... 253 V AC/DC, AC 48 ... 62 Hz, approx. 2 VA
DC approx. 1.0 W
EMC 3) EN 61326 -1
Construction 12.5 mm (0.49") housing, protection classt: 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

Block diagram




Terminal assignments
Wire cross-section max. 2,5 mm², Multi-wire connection max. 1 mm² (two wires with same cross-section)

1 Input current + 5 Output +
2 Input current - 6 Output -
3 Input voltage + 7 Power supply ~
4 Input voltage - 8 Power supply ~


Product line

Devices Order No.
Isolation Amplifier, calibrated range selection DN 2000 AG
  Input Output  
Isolation Amplifier,
fixed setting
0 to 20 mA 0 to 20 mA DN 2012 AG
4 to 20 mA 0 to 20 mA DN 2032 AG
0 to 10 V 0 to 20 mA DN 2052 AG
0 to 20 mA 4 to 20 mA DN 2014 AG
4 to 20 mA 4 to 20 mA DN 2012 AG
0 to 10 V 4 to 20 mA DN 2054 AG
0 to 20 mA 0 to 10 V DN 2016 AG
4 to 20 mA 0 to 10 V DN 2036 AG
0 to 10 V 0 to 10 V DN 2056 AG
Subject to change!
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