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Customer-Specific Isolation Amplifier DK 8000

Isolation and Conversion of Industrial Signals in Special Applications

The Isolation Amplifier DK 8000 is used for isolation and conversion of customer-specific industrial signals.

  • Customer-Specific Solutions
    Special Input ant output range on request
  • 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
  • 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)

When it comes to individualized solutions, the know-how advantage of our development team stands ready to serve. This allows us to offer customer-specific solutions with the proverbial DRAGO quality in the shortest possible time; solutions which, as a result of individualized consultation, optimally meet all customer needs, including their economic ones.

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 DK 8000 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.

Product line

Product line DK 8000
Devices Order No.
Customer-Specific Isolation Amplifier DK 8000 – XXX
The index number - XXX describes the signal combination
and will be announced by order.

Technical Data


Input signals Customer-specific
technical data as orders (see label)
Input resistance Current input
Voltage input
approx. 25 Ohm (depends on measuring range)
approx. 1 MOhm (depends on measuring range)
Overload Max. 120 % of final value


Output signals Customer-specific
technical data as orders (see label)
Load Current output
Voltage output
≤ 12 V (600 Ohm at 20 mA)
≤ 20 mA (500 Ohm at 10 V)
Transmission range unipolar: –2 ... +110 %, bipolar: –110 ... +110 %
Residual ripple < 10 mVrms

General Data

Transmission error Typical 0.1 % full scale (max. 0.3 %, depends on measuring range)
Temperature coefficient 1) < 100 ppm/K
Zero/Span Adjustment Optional
Cut-off frequency -3 dB Max. 10 kHz
Test voltage 4 kV AC, 50 Hz, 1 min., input against output against power supply
Working voltage 2)
(Basic Insulation)
1000 V AC/DC for overvoltage category II and pollution degree 2 acc. to EN 61010–1
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 3) 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. 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

  • 1 + Input
  • 2 − Input
  • 3 + Input
  • 4 − Input
  • 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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Product request

What is the sum of 3 and 4?