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Rev: 1217
P/N: 974124
ECO: 27882
7.2 Calibration
7.3 Zero Adjustment
7.4 Operation
Calibrate in pressureless state and at room temperature. Other ambient
temperatures will corrupt the signal. Use an adjustment screwdriver!
The adjustment is made at two potentiometer screws in the cover section of the elec-
tronic housing.
• Remove the cap screws from the potentiometers.
• Connect a meter or suitable instrument to the signal output to verify the settings.
• Adjust zero at potentiometer adjusting zero screw and verify on meter.
For PT303, adjust zero at operating temperature!
• Wait until a steady operating temperature is reached at the pressure sensor.
• Adjust zero at potentiometer adjusting zero screw and verify on the meter.
• Replace the cover screws on the potentiometers.
Operating temperature at the PT diaphragm max. 170°F.
Higher temperatures will damage the PT.
Ambient temperature for the electronics housing max. 170°F.
Higher temperatures can result in damage and malfunction.
Do not install the pressure transmitter in places where this temperature is
exceeded.
