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Isolation Amplifier Module DN 240M

Isolation and Conversion of Standard Signals for PCB Assembling

The Isolation Amplifier DN 240M 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
  • Calibrated signal setting
    Input and output range can be set by using connector pins - without any further adjustment
  • Power Supply for 24 V DC
    Applicable for standard power supply voltages
  • 3-port isolation
    Protection against erroneous measurements due to parasitic voltages or ground loops
  • Ultra-small-sized housing
    15.5 mm flat module for pcb assembling
  • 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)

Its high level of reliability and cost optimized design make the DN 240M the first choice in customer applications.

Unique in its price class, the DN 240M provides application flexibility thanks to the calibrated range.

The desired input and output range can be easily set by terminal pins and due to the calibrated range selection no further adjustment is necessary.

The flat module with 15.5 mm height for pcb assembling saves space in the customer application.

Product line

Product line DN 240M
Device Order No.
Isolation Amplifier Module, calibrated range selection DN 240M

Technical Data

Input

Input signal 0 to 20 mA, 4 to 20 mA, 0 to 10 V, terminal selectable
Input resistance Current input
Voltage input
22 Ohm
1 MOhm
Overload Current input
Voltage input
≤ 100 mA
Voltage limitation via 30 V Z-Diode,
max. continuous current 30 mA

Output

Output signal 0 to 20 mA, 4 to 20 mA, 0 to 10 V, terminal selectable
Load Current output
Voltage output
≤ 10 V (500 Ohm at 20 mA)
≤ 10 mA (1 kOhm at 10 V)
Residual ripple < 20 mVrms

General Data

Transmission error < 0.3 % full scale
Temperature coefficient 1) < 150 ppm/K
Cut-off frequency -3 dB 1 kHz
Response time T99 0.7 ms
Test voltage 2.5 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
Ambient temperature Operation
Transport and storage
–10 °C to +60 °C   (+14 to +140 °F)
–20 °C to +80 °C   (-4 to +176 °F)
Power supply 24 V DC ±10 %, approx. 1.2 W
EMC 3) EN 61326-1
Construction Module for pcb assembling, 52.5 x 36 x 15.5 mm (l x w x h)
Weight Approx. 60 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

Klemmenbelegung

  • 1 + Input voltage 0 ... 10 V
  • 2 − Input voltage
  • 3 + Input current 0/4 ... 20 mA
  • 4 − Input current
  • Output current
  • 13
  • 14 + Output
  • 15 - Output
  • 16
  • Output voltage
  • 13
  • 14 + Output
  • 15 - Output
  • 16
  • 17 Jumper for Output 4 ... 20 mA
  • 18
  • 19 Jumper for Output 4 ... 20 mA
  • 22 − Power supply 24 V DC
  • 24 + Power supply 24 V DC

] = Jumper on customer pcb
all other pins not connected

Subject to change!

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