User Guide

Instruction Manual DO 100
47
11 ERROR MESSAGES
LCD Display Indicates Cause Solution
Err 1 (in primary
display)
Memory write error. Instrument too old (> 10
years). Hardware
failure.
Turn meter on and off
again. If message persists,
return unit*.
Err. 2 (in primary
display)
Memory checksum
error.
Hardware failure. Turn meter on and off
again. If message persists,
return unit*.
Err. 3 (in primary
display)
A/D converter error. Hardware error. Turn meter on and off
again. If message persists,
return unit*.
Err. 4 (in primary
display)
Keypad error. One or more keys on
the keypad are stuck.
Turn meter on and off
again. If message persists,
return unit*.
Err annunciator Unrecognised input
from keypad
Wrong input in selected
mode.
Release key. Select valid
operations depending on
mode.
CAL & Err
annunciators
blink.
Calibration error. Wrong value input at
calibration.
Dirty probe.
Check your input value,
clean probe.
See Calibration sections or
Probe Maintenance
section.
Battery indicator
lights up.
Low battery level. Need new batteries or
battery connection is
bad.
Clean battery contacts.
Replace batteries with fresh
ones, noting polarity.
Battery indicator
blinks
Low battery level. Need new batteries or
battery connection is
bad.
Clean battery contacts.
Replace batteries with fresh
ones, noting polarity.
* See Section 15 “Warranty” and Section 16 “Return of Items” on page 54.
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.
If error persists, or the meter shows incorrect values, return the meter.
For a complete diagram of the display, see Figure 1 on page 2.