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Isolation Amplifier DN 25000

Isolation and Conversion of Standard Signals

The Isolation Amplifier DN 25000 is used for isolation and conversion of 0/4 to 20 mA and 0/2 to 10 V standard signals.

  • Calibrated signal setting
    Input and output range can be set by using DIP switch – high precision without any further adjustment
  • 3-Port isolation
    Protection against erroneous measurements due to parasitic voltages or ground loops
  • Extremely slim design
    6.2 mm slim housing for a simple and space saving DIN rail mounting
  • Optional In-Rail-Bus mounting rail connector
    allows for fast and economical installation
  • Protective Separation acc. to EN 61140
    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 25000 is used for isolation and conversion of 0/4 to 20 mA and 0/2 to 10 V standard signals.

The input and output range of DN 25000 can be easily set by using DIP switch. 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.

The auxiliary power can be supplied via the connection terminals or via the optional In- Rail-Bus connector. A green LED on the front of the unit has been provided to monitor the power supply.

Technical Data

Input

Input signal 0 to 20 mA, 4 to 20 mA, 0 to 10 V, 2 to 10 V, calibrated switchable
Input resistance Current input
Voltage input
≤ 25 Ohm
≥ 100 kOhm
Overload Current input
Voltage input
< 50 mA
< 30 V

Output

Output signal 0 to 20 mA, 4 to 20 mA, 0 to 10 V, 2 to 10 V, calibrated switchable
Load Current output
Voltage output
≤ 12 V (600 Ohm at 20 mA)
≤ 5 mA (2 kOhm at 10 V)
Linear transmission range –1 to +110 %
Residual ripple < 10 mVrms

General Data

Transmission error < 0.1 % full scale
Temperature coefficient 1) < 100 ppm/K
Cut-off frequency -3 dB 5 kHz, 100 Hz, 10 Hz, switchable
Response time T99 150 µs, 7 ms, 70 ms
Test voltage 3 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
–25 °C to +70 °C   (-13 to +158 °F)
–40 °C to +85 °C   (-40 to +185 °F)
Power supply 24 V DC     voltage range 9.6 V to 31.2 V, approx. 0.7 W
EMC 3) EN 61326-1
Approvals UL (USA/Canada): UL 61010, Class I, Div. 2
ATEX / IECEx: Zone 2 (nA)
Construction 6.2 mm (0.244") housing, protection class: IP 20
mounting on 35 mm DIN rail acc. to EN 60715
Weight Approx. 70 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

Dn25000

Dimensions

Masszeichnung-mitBus

Connection
Captive plus-minus clamp screws
Wire cross-section max. 2.5 mm² / AWG 14
Stripped length 6 to 8 mm / 0.28 in
Screw terminal torque 0.8 Nm / 7 lbf in
Optional power connection via In-Rail-Bus (see accessories)

Terminal assignments

1 + Input current
2 - Input current
3 + Input voltage
4 - Input voltage
     
5 + Output
6 - Output
     
7 + Power supply (connected to In-Rail-Bus)
8 - Power supply (connected to In-Rail-Bus)

Downloads

Product line

Devices Order No.
Isolation Amplifier, calibrated range selection DN 25000 S
Isolation Amplifier, calibrated range selection, In-Rail-Bus for power supply DN 25000 B
Subject to change!
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