User guide

pH 7310 What to do if...
ba75929e03 12/2011 61
12.2 General information
Sensor symbol
flashes
Display
Instrument does not
react to keystroke
You want to know
which software
version is in the
meter
Cause Remedy
– Calibration interval expired – Recalibrate the measuring
system
Cause Remedy
– Batteries almost empty – Replace the batteries (see
section 11.1 MAINTENANCE,
page 57)
Cause Remedy
– Operating condition undefined or
EMC load unallowed
– Processor reset:
Press the <ENTER> and <On/
Off> key simultaneously
Cause Remedy
– E. g., a question by the service
department
– Switch on the meter.
Open the menu, <F1_>/
[Menu] / Storage & config /
SystemService information.
The instrument data are dis
-
played.