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TROUBLESHOOTING
PROBLEM PROBABLE CAUSE CORRECTIVE MEASURES
1) Display shows "LOBAT" Batteries are low a) Replace batteries (Refer to page
3).
2) Display shows "1999.9" or
"-1999.99"
a) Bad connection between Light
Wand and Probe Socket
b) Too much/too little light
a) Be sure the Light Wand is
properly inserted into the Probe
Socket.
b) Be sure the Light Wand is
properly seated in the Optical
Standard when Zero Adjusting.
3) Poor Repeatability a) Inconsistent measurement
technique
a) Make sure you are applying
enough pressure between the Light
Wand and the subject's arm.
b) The silver line on the Light Wand
must be aligned with the line on the
Optical Standard when Zero
Adjusting.
c) When taking a measurement, the
sliver line on the Light Wand must
point toward the subject's shoulder.
d) Use the Light Shield to block the
external light. Always avoid
measurements under strong lights
(e.g. direct sunlight) because errors
may occur.