Isolation Amplifier DN 28 – Isolation and Conversion of Standard Signals


The Isolation Amplifier DN 28 is used for isolation and conversion of 0 to 20 mA, 4 to 20 mA and 0 to 10 V standard signals.

  • Cost optimized design
    Economical separation for standard applications
  • 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
  • True 3-port separation
    Protection against erroneous measurements due to parasitic voltages or ground loops
  • Protective Separation acc. to EN 61140
    Protects service personnel and downstream devices against impermissibly high voltage
  • 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)
Datasheet
User Manual
Add to your Quote List

For applications where one signal combination only is used, the Isolation Amplifier DN 28 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 DN 28 universally applicable for all measurement and industrial applications, as well as for building automation.

Product line

Input Output Order No.
0 … 20 mA 0 … 20 mA DN 28 P – 12
4 … 20 mA 0 … 20 mA DN 28 P – 32
0 … 10 V 0 … 20 mA DN 28 P – 52
0 … 20 mA 4 … 20 mA DN 28 P – 14
4 … 20 mA 4 … 20 mA DN 28 P – 12
0 … 10 V 4 … 20 mA DN 28 P – 54
0 … 20 mA 0 … 10 V DN 28 P – 16
4 … 20 mA 0 … 10 V DN 28 P – 36
0 … 10 V 0 … 10 V DN 28 P – 56

 

Technical Data

Input

Input signal 0 to 20 mA, 4 to 20 mA, 0 to 10 V
see product line
Input resistance Current input
Voltage input		 approx. 5 Ohm
approx. 1 MOhm
Overload Current input
Voltage input		 ≤ 200 mA
≤ 250 V

Output

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

General Data

Transmission error < 0.2 % full scale
Temperature coefficient 1) < 0.02 %/K
Cut-off frequency -3 dB 200 Hz
Response time T99 3.5 ms
Test voltage 3 kV AC, 50 Hz, 1 min., input against output against
power supply
Working voltage
(Basic Insulation) 2)		 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 +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 classt: IP 20
mounting on 35 mm DIN rail acc. to EN 60715
Connection Wire cross-section max. 2.5 mm²
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

Dimensions

Terminal assignments

  • 1 +Input
  • 2 −Input
  • 3–
  • 4–
  • 5 +Output
  • 6 −Output
  • 7Power supply 24 V AC/DC
  • 8Power supply 24 V AC/DC








Isolation Amplifier DN 28 - Isolation and Conversion of Standard Signals
Technical advice: 03303 / 50 40 66

Technical advice for this product


    In accordance with the General Data Protection Regulation (GDPR), we are obliged to inform you about the collection of data. We meet this obligation by referring to our privacy notice.



    Isolation Amplifier DN 28 – Isolation and Conversion of Standard Signals

    Isolation Amplifier DN 28 - Isolation and Conversion of Standard Signals

    The Isolation Amplifier DN 28 is used for isolation and conversion of 0 to 20 mA, 4 to 20 mA and 0 to 10 V standard signals.

    • Cost optimized design
      Economical separation for standard applications
    • 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
    • True 3-port separation
      Protection against erroneous measurements due to parasitic voltages or ground loops
    • Protective Separation acc. to EN 61140
      Protects service personnel and downstream devices against impermissibly high voltage
    • 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)
    Datasheet
    User Manual
    Add to your Quote List

    For applications where one signal combination only is used, the Isolation Amplifier DN 28 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 DN 28 universally applicable for all measurement and industrial applications, as well as for building automation.

    Product line

    Input Output Order No.
    0 … 20 mA 0 … 20 mA DN 28 P – 12
    4 … 20 mA 0 … 20 mA DN 28 P – 32
    0 … 10 V 0 … 20 mA DN 28 P – 52
    0 … 20 mA 4 … 20 mA DN 28 P – 14
    4 … 20 mA 4 … 20 mA DN 28 P – 12
    0 … 10 V 4 … 20 mA DN 28 P – 54
    0 … 20 mA 0 … 10 V DN 28 P – 16
    4 … 20 mA 0 … 10 V DN 28 P – 36
    0 … 10 V 0 … 10 V DN 28 P – 56

     

    Technical Data

    Input

    Input signal 0 to 20 mA, 4 to 20 mA, 0 to 10 V
    see product line
    Input resistance Current input
    Voltage input    		 approx. 5 Ohm
    approx. 1 MOhm
    Overload Current input
    Voltage input    		 ≤ 200 mA
    ≤ 250 V

    Output

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

    General Data

    Transmission error < 0.2 % full scale
    Temperature coefficient 1) < 0.02 %/K
    Cut-off frequency -3 dB 200 Hz
    Response time T99 3.5 ms
    Test voltage 3 kV AC, 50 Hz, 1 min., input against output against
    power supply
    Working voltage
    (Basic Insulation) 2)    		 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 +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 classt: IP 20
    mounting on 35 mm DIN rail acc. to EN 60715
    Connection Wire cross-section max. 2.5 mm²
    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

    Dimensions

    Terminal assignments

    • 1 +Input
    • 2 −Input
    • 3–
    • 4–
    • 5 +Output
    • 6 −Output
    • 7Power supply 24 V AC/DC
    • 8Power supply 24 V AC/DC








    Technical advice: 03303 / 50 40 66

    Technical advice for this product


      In accordance with the General Data Protection Regulation (GDPR), we are obliged to inform you about the collection of data. We meet this obligation by referring to our privacy notice.



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