43
10. Error Messages
LCD
Indicates
Cause
Solution
Display
Err
Unrecognized input
Wrong input in
Release key. Select
annunciator
from keypad
selected mode.
valid operations
depending on mode.
CAL & Err
Calibration error
Wrong buffer value
Check your calibration
annunciators on/
input at calibration.
input value, clean probe.
Buffer and
Dirty probe.
See Calibration sections or
electrode
Probe Maintenance section.
indicators blink
Battery
Low battery level
Need new batteries
Clean battery contacts.
indicator blinks
or battery
Replace batteries with fresh
connection is bad
ones, noting polarity
Err. 1
Memory write
Hardware failure.
Turn meter on and off
(in primary
error
again. If message persists,
display)
return unit*
Err. 2
Memory checksum
Hardware failure.
Turn meter on and off
(in primary
error
again. If message persists,
display)
return unit*
Err. 3
ACD converter
Hardware failure.
Turn meter on and off
(in primary
error
again. If message persists,
display)
return unit*
Err. 4
Keypad error
Fault in keypad
Turn meter on and off
(in primary
again. If message persists,
display)
return unit*
If an error message appears in the primary
display (the upper row of larger digits),
switching off the meter and switching it on
again may eliminate the error message.
See figure
If error persists, or the meter shows
incorrect values, return the meter.
For a complete diagram of the display,
see page 5.
ERR 1 in primary display
A
A
