ERROR MESSAGES
19
11. ERROR MESSAGES
Error Code
Description
Err
General failure. Cycle
power to instrument. If
instrument still has error,
contact Milwaukee.
LO
Primary display
Sample is reading lower
than the 0 % standard
used for meter calibration.
HI
Primary display
Sample exceeds maximum
measurement range.
LO
Primary display
CAL
segment ON
Wrong calibration used
to zero instrument. Use
deionized or distilled
water. Press
Zero
.
HI
Primary display
CAL
segment ON
Wrong calibration used
to zero instrument. Use
deionized or distilled
water. Press
Zero
.
t LO
Primary
display
CAL
segment ON
Temperature exceeds ATC
low limit (10 °C) during
calibration.
t HI
Primary
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.