Output Connections; Output Shunt Resistance Formula; Chapter 3: Calibration - Mantracourt ALA5 User Manual

Please refer to Appendix A – 'Special conditions of safe use'
For special cable types e.g. high temperature, armoured etc. please contact Mantracourt Electronics.

Output Connections

The ICA5ATEX analogue output is 4 to 20mA. The power and signal are combined in a single pair cable, simplifying
installation.
N.B. Neither connection to the output load is electrically common to the load cell.
The following formula gives the suitable range of shunt resistance for low supply voltage operation.

Output Shunt Resistance Formula

The shunt resistance must be less than: ((V
e.g. assuming 10 Ohms wiring resistance and 24V supply:
Max shunt resistance = ((24 - 9) / 0.02) –10 = 740 Ohms

Chapter 3: Calibration

In order to calibrate the ALA5 the cover of the enclosure must be removed as follows:
Mechanical tools required: 1.5mm hex key, 14mm AF spanner and flat-blade screwdriver, maximum width 1.5mm.
1. Remove the two grub screws using a
1.5mm hex key
5
Mantracourt Electronics Limited ALA5, ILEAtex and ICA5Atex User Manual
-9) / 20mA) – R
supply wiring
2. Loosen the gland furthest away from the
grub screw holes using a 14mm AF
spanner.