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Shunt / mV Isolation Amplifier DS 7200

Isolation and Conversion of Bipolar and Unipolar mV-Signals

The Isolation Amplifier DS 7200 is used for separation and conversion of bipolar and unipolar mV-signals such as those frequently used for current measuring with shunt-resistors or other applications.

  • Easy selection of input and output range
    Input and output range for unipolar and bipolar signals can be easily set by using DIP switch
  • 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 bandwidth; high accuracy
    No distortion; no falsification of measured signal
  • Protective Separation, 5 kV Test Voltage
    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 DS 7200 is used for separation and conversion of bipolar and unipolar mV-signals such as those frequently used for current measuring with shuntresistors or other applications.

Due to the easy selection of the input and output ranges, the new universal power supply and the ultra-small housing the Isolation Amplifier is suitable for flexible use. High reliability and Protective Separation are further characteristics that make the DS 7200 unrivaled.

The order key allows you to select the desired input and output ranges to which the unit will be adjusted at the factory before delivery. These can be easily reconfigured at any time by means of DIP switch settings. Subsequent readjustment or measured range compensation can then be performed at the zero/scan potentiometers on the front panel. Also the cut-off frequency can be adapted to the measurement task by using the DIP Switch.

The slim housing with 12.5 mm width saves space in your switch cabinet and facilitates by the practical plug-in screw terminal blocks the assembly. For range setting a simple housing unblocking is installed which makes it possible to reach easily all control elements on the DIN-rail.

The new universal power pack for 20 to 253 V AC/DC means the DS 7200 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

Input signals
(terminal/switch selectable)
± 60 mV, ± 100 mV, ± 150 mV, ± 250 mV, ± 300 mV, ± 500 mV
0 to 60 mV, 0 to 100 mV, 0 to 150 mV, 0 to 250 mV, 0 to 300 mV, 0 to 500 mV
Input resistance > 100 kOhm
Input capacitance Approx. 1 nF
Overload ≤ 30 V

Output

  Voltage Current
Output signals
(switch selectable)
± 10 V, 0 to 10 V, 2 to 10 V
± 5 V, 0 to 5 V, 1 to 5 V
± 20 mA, 0 to 20 mA, 4 to 20 mA
± 10 mA, 0 to 10 mA, 2 to 10 mA
Load ≤ 10 mA (1 kOhm at 10 V) ≤ 12 V (600 Ohm at 20 mA)
Linear transmission range unipolar: –2 to +110 %, bipolar: –110 to +110 %
Residual ripple < 20 mVrms

General data

Transmission error < 0.1 % full scale
Temperature coefficient 1) < 100 ppm/K
Zero/Span compensation ± 10 %
Cut-off frequency -3 dB 10 kHz, switchable to 30 Hz
Response time T99 80 µs,    20 ms
Test voltage 4 kV AC, 50 Hz, 1 min., Input against output against power supply
5 kV AC, 50 Hz, 1 min., Input against output/power supply (DS7200HV only)
Working voltage 2)
(Basic Insulation
1000 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 600 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    (-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

Ds7200

Dimensions

GehaeuseHighFunctionality

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

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

Downloads

Product line

Devices Order No.
Shunt / mV Isolation Amplifier  DS 7200 DS 7200 AG - XX - XX
(Factory default setting,
reconfigurable any time by
using DIP-switch)
Input ± 60 mV   50  
0 to 60 mV   51  
± 100 mV   52  
0 to 100 mV   53  
± 150 mV   54  
0 to 150 mV   55  
± 250 mV   56  
0 to 250 mV   57  
± 300 mV   58  
0 to 300 mV   59  
± 500 mV   60  
0 to 500 mV   61  
Output ± 10 V     00
0 to 10 V     01
2 to 10 V     02
± 5 V     03
0 to 5 V     04
1 to 5 V     05
± 20 mA     06
0 to 20 mA     07
4 to 20 mA     08
± 10 mA     09
0 to 10 mA     10
2 to 10 mA     11
Shunt / mV Isolation Amplifier with 5 kV Test Voltage DS 7200 HV - XX - XX
Example:
Shunt / mV Isolation Amplifier,
Input ± 150 mV, Output 4 to 20 mA

DS 7200 AG -

54 -

08
If no information is given by ordering, the devices are delivered with the standard configuration: Input signal ± 60 mV, Output signal ±10 V.
Subject to change!
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