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IM 735201-01E
6-3
6.2 Troubleshooting
The following should be checked if the instrument is not functioning as expected.
Cannot take measurements
Immediately after turning the power ON, the measured value blinks and
measurements cannot be taken.
-> Is range hold selected (the hold indicator is displayed)?
Press the RANGE key. This clears the range hold.
(Example of possible problem: When using the previous value, the range is
held at a high level resulting in a continuous measured value of “under
error.”)
The instrument doesn’t work even though the power is ON.
1) Are the correct batteries installed?
-> Use only AA alkaline dry cells.
-> Check the polarity/orientation of the batteries.
2) Is there charge remaining in the batteries?
3) Is one or both of the batteries spent?
-> Replace both batteries (at the same time).
(Leakage can occur when using an old and new battery together, and can
result in damage to the instrument.)
4) Is the power cord for the AC adapter connected correctly?
5) Are you using the dedicated AC adapter that came with the instrument?
-> Never use an AC adapter or power cable other than the dedicated ones
available for use with this instrument, as damage can result.
Normal measured values are not displayed.
1) Do the instrument’s measurement conditions match the light being measured?
-> Edit the measurement conditions using the SETUP key.
2) Is CORR VAL blinking?
-> Turn the user calibration function OFF during normal measurement.
3) Is the sensor head connector connected correctly?
-> Check the connections. Align the connector tab with the groove, then push
all the way in.
If the connection is not sound, measurements will be inaccurate.
Cannot transfer data via USB.
1) Did you install the USB driver on the PC?
-> Use the accessory TB200 UTILITY CD.
2) Is the USB cable properly connected?
3) Are you using the dedicated AC adapter?