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SG-INL Strain Gauge Amplifiers

Single Channel Inline Strain Gauge Amplifier

About the SG-INL Strain Gauge Amplifiers

The single-channel inline strain gauge measuring amplifier SG-INL allows supply and signal evaluation of a transducer with a strain gauge full bridge greater than 300 ohms. The connection is done in 4-wire technology. For further evaluation standard analogue outputs are available. The measuring amplifier is built-in into a robust aluminium enclosure (IP20) which is suited for applications in rough and industrial environments.
The amplification can be adapted by an internal precision resistance.

The potentiometers Z (Zero) and G (Gain) accessible after removing the enclosure cover, allow a correction of the calibration. By means of an internal dip switch a change of the potentiometer Z (zero) range can be achieved.


Key features SG-INL

  • Supply voltage 10 - 18 VDC / 18 - 30 VDC
  • Analogue output 0 - 10 V / ±10 V
  • Aluminium enclosure (IP20)
  • Dimensions (W x H x D) 92 x 38 x 31 mm


Number of measuring channels
1 (full bridge resistance >300 Ω)
Supply voltage
10 to 18 VDC,18 to 30 VDC, electronics protected against voltage reversal
Isolating proof voltage input to output
200 V, higher isolated proof voltage on request
Power consumption
3 W max.
Strain gauge excitation supply
2.5 VDC, 5 VDC or 10 VDC
Analogue output
0 - 10 V, ±10 V, max. 1 mA (short-period short-circuit proof)
Limit frequency (-3 dB)
1 kHz
Input resistance
>3 MΩ
Max. input sensitivity
25 mV/V at 10 VDC excitation supply
±0.05 % FSO
Electrical connection
3 m connecting cable Type LiYCY (TP) 2 x 2 x 0.25 mm² 5 pin bead male connector Binder Series 712/423 / Series 712/423 depending on the cable diameter of the connected strain gauge sensor
EMC aluminium die-cast enclosure (IP65)
Dimensions (W x H x D)
92 x 38 x 31 mm
150 g
Temperature, storage
-20 to +60 °C
Temperature, operating
0 to +50 °C
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