Chapter 1 The Icas And H Range - Mantracourt ICAS Series User Manual

Chapter 1 The ICAS and H Range

Figure 1.1 Block Diagram
The ICA is a Strain Gauge Amplifier, converting a strain gauge input to a Volt or mA output – otherwise known as a
Signal Conditioner.
The ICA provides a wide range of signal conditioning for Strain Gauges, Load Cells, Pressure and Torque Transducers.
Offered in 6 versions and two performance categories, ICAS and ICAH. The ICAH offers lower drift over the operating
temperature range.
 ICA1 - 3 wire - 0.1 to 10.1V
 ICA2 - 3 wire - 0.1 to 5.1V
 ICA3 - 4 wire -  10V / 15V supply
 ICA4 - 3 wire - 4 to 20mA
 ICA5 – 2 wire – 4 to 20mA
 ICA6 - 3 wire – 10V / 15-24V supply
This manual only deals with Versions ICA1 and ICA2 S and H, separate manuals exists for versions ICA3 and 6, ICA4
and ICA5.
Transducer SENSITIVITY of between 0.5 mV/V and 150mV/V are possible. It is optimised to 2.5 mV/V. This range
covers most - but not all – strain gauges.
Sensitivity adjustment is achieved by a combination of gain (span) resistor 'R' change and associated fine
adjustment by potentiometer.
Similarly transducer ZERO can be compensated for in the module. This adjustment is to compensate for slight errors
in the strain gauge and not to offset tare.
Mantracourt's SGA (Strain Gauge Amplifier) covers a range from 0.06 mV/V to 30mV/V and it's 79% offset can
provide tare compensation.
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Mantracourt Electronics Limited ICA1 and ICA2 S and H Versions User Manual