ERROR MESSAGES
15
10. ERROR MESSAGES
Error Code
Description
Err
General failure. Cycle
power to instrument. If
instrument still has error,
contact Milwaukee.
LO
Top display
Sample is reading lower
than the 0 % standard
used for meter calibration.
HI
Top display
Sample exceeds maximum
measurement range.
LO
Top display
CAL
segment ON
Wrong calibration used
to zero instrument. Use
deionized or distilled
water. Press Zero.
HI
Top display
CAL
segment ON
Wrong calibration used
to zero instrument. Use
deionized or distilled
water. Press Zero.
t LO
Top display
CAL
segment ON
Temperature exceeds ATC
low limit (10 °C) during
calibration.
t HI
Top display
CAL
segment ON
Temperature exceeds ATC
high limit (40 °C) during
calibration.
Air
Prism surface insufficiently
covered.
ELt
Too much external light
for measurement. Cover
sample well with hand.
nLt
LED light is not detected.
Contact Milwaukee.
