Schneider Electric Pressure Transmitter IAP05S-V

Connect a digital voltmeter and precision resistor in the output loop.

Is the calibration equipment set up as described in the Calibration Setup, page 77?

Perform trim calibration at the following mA outputs

Is the FoxCalTM feature enabled?

Was the transmitter output rezeroed after stabilization at the final operating temperature?

Were zero shifts resulting from position effects eliminated by rezeroing the transmitter output?

Ensure the transmitter is in linear mode for DP transmitters

Disable FoxCalTM if performing a two-point calibration

Confirm LRV and URV values are within the calibrated range

Apply minimum pressure and record LRV

De-energize transmitters before removing threaded housing covers

Ensure no flammable or combustible atmosphere is present before disconnecting equipment

Remove the vent plug by unscrewing it counterclockwise

Clean the angled sealing surface on the housing

Lubricate the o-ring and the threads on the new plug with silicone lubricant

Install the new plug into the housing by screwing it clockwise

Torque the new plug to 0.9 ±0.02 N-m (8 ±0.2 lbf-in)

Verify the torque applied to the new plug

Is the FoxCalTM feature enabled?

Rezero the transmitter output once it has stabilized at the final operating temperature.

Perform a two-point calibration if FoxCalTM is enabled.

Check underrange and overrange output values to ensure they extend beyond 4 and 20 mA, respectively.

Zero Reading Check (DP Transmitters Only)

Return the output to linear mode for zero reading check.

Return the transmitter output to square root mode after zero check is complete.

Ensure the FoxCalTM feature is enabled before starting calibration

Is the input pressure for field span calibration at least four times better than the transmitter’s reference accuracy specification?

Perform calibration at LRV and URV points

Is the transmitter output rezeroed after stabilization at the final operating temperature?

Are underrange and overrange output values checked to ensure they extend beyond 4 and 20 mA, respectively?