To Adjust Mv Zero - Agilent Technologies 3200P User Manual

To adjust mV zero

3200P pH Meter User Guide
Although the meter compensates for many factors which may
affect measurement (such as temperature), it still can not
guarantee the ideal condition of zero drift. For accurate
measurement, perform Adjust mV Zero before measurement.
To adjust mV zero:
1 Turn off the meter.
2 Adjusting the zero requires the short- circuit plug
(G4383- 40000). If needed, disconnect the electrode and
install the short circuit plug into the pH socket.
3 Turn on the meter and let stabilize for 30 seconds.
4 Press [Setup], select Adjust mV Zero, and press [Enter]. The
meter will display Adjust mV zero?.
5 Press [Enter] and the meter will calibrate mV zero.
If the potential (mV) value deviates far from zero, double
check the short circuit plug connection.
After adjusting the mV zero, connect the electrode to the
meter. Store the short- circuit plug in a clean, dry place.
Damage to the plug can damage the meter.
Operation 2
33