Probe Calibration - Ametek Davenport PET Plus User Manual

If any of the readings differ from the true pressure measured on the reference pressure gauge by
more than +0.1Bar, add a calibration point as shown earlier.
Finally, press the key under GAS OFF to release the pressure inside the barrel.

15.4 PROBE CALIBRATION

Note that a special probe calibration tool (part number 750/35) is required for this procedure.
Also note that the probe must be connected to the PET Plus and the equipment MUST be left
switched on for at least 15 minutes BEFORE performing this calibration.
The probe is calibrated by moving the probe rod a known distance then indicating this distance into
the system.
Press the key under CAL PROBE to display the "Probe Calibration" screen.
Set the calibration micrometer to 0.000mm then
lock the micrometer into its holder so that the
micrometer tip is in line with the two reference
grooves.
Place the probe into the holder at the right hand
side of the vertical column.
Smear petroleum jelly onto the end of the probe
rod then attach the calibration tool to the Probe.
Check that the measured probe is 0mm
+/- 0.01mm.
86 PET Plus User Manual