Radiometer Analytical MeterLab PHM220 Mode D'emploi page 54

Message
OUT OF RANGE
PRINTER ERROR
REPLACE BATTERY
USER DATA LOST
SAME BUFFER
CHANGE BUFFER
SENSITIVITY
ERROR
54
Chapter 5
This message appears if the measured potential
exceeds the -1999.9 to +1999.9 mV range during
mV measurements, or if it exceeds the -9 to
+23 pH range during pH measurements.
Check electrode condition and electrode
connection.
If a printer is connected to the PHM220 and data
transmission cannot be performed properly, this
message will appear.
Check that the printer has been turned on and is
on line. Check that the paper is in place.
The battery is completely run down.
The stored data have been replaced by default
values when the battery has been removed.
The battery must be changed and a new
calibration should be performed.
Press the Cal key to start a new calibration.
The same buffer has been used twice for a two
or three-point calibration.
Calibration against the correct second buffer can
be initiated after pressing .
In AUTO calibration the electrode sensitivity has
not been accepted during a two or three-point
calibration as it is outside the 95 to 102 %
sensitivity range.
If a FIXED calibration has been performed,
check the min. and max. sensitivity limits set in
the Edit mode; refer to page 36.
Check the buffers used, the electrode condition
and electrode connection.
A new calibration can be initiated by pressing .
Error/Action