User Guide

51
ERROR
MESSAGE
(BLINKING)
INDICATES PROBABLE CAUSE CORRECTIVE ACTION
Incorrect
readings
1. Incorrect calibration.
2. Wrong temperature
coefficient %.
3. Wrong TDS factor.
4. Dirty electrode.
1. Reset calibration
and re-calibrate
with correct
parameters.
2. Reset Temperature
compensation %.
3. Reset TDS factor.
4. Clean electrode in
isopropanol. If
electrode is coated
with contaminants,
clean using soft
tissue and re-
calibrate.
Not
responding to
key press
1. HOLD mode selected.
2. Internal program error.
1. Cancel HOLD
mode.
2. Re-insert batteries.
Err 1 Memory write error
Return to distributor for
repair or replacement.
Err 2 Memory read error
Return to distributor for
repair or replacement.
Err 3 A/D error
Return to distributor for
repair or replacement.
Err 4 Keypad error
Return to distributor for
repair or replacement.
Err 5
EEPROM read
error
Return to distributor for
repair or replacement.