Omega-vehicle-security IP210 User Manual download pdf (Page 6)

11. Calibration

When the instrument is first installed , or after a long period of downtime, a moderate zero shift is normal. This is due

to the rubber diaphragms which are stretched by the internal springs. After a few operations, the instrument will

settle into its normal operating condition. It is recommended that, under these circumstances, instruments should be

exercised by alternately applying zero and full scale signals several times. Zero calibration should then be carried

out.

Air Supply

Minimum signal

Adjust zero control (anti-clockwise) to

give minimum required output pressure

+ to Maximum Signal

Adjust range control (anti-clockwise on 2-wire, clockwise on 3

wire) to give maximum required output pressure

Note: Reverse Acting Operation

1 About 20 turns of the zero screw may

be required to reset the zero point.

2 3-wire instruments require to be factory

set for reverse action.

3 Reverse action is not currently

available on high pressure models

4 Do not over wind nozzle to prevent

jamming

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Omega-vehicle-security IP210 User Manual Page 6