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Browse/Delete Saved Measurement Values
1. Press the
button to enter the saved measurement values screen.
2. Press the button to move up the list of saved measurement values.
3. Press the
button to clear the selected saved measurement value.
4. Press the
button to exit the saved measurement values
screen and resume normal operation.
Battery Replacement
1. When the low battery symbol appears on the display, replace
the batteries.
2. Remove the battery cover on the back and insert two new
AAA batteries.
Note:
If the unit will not be used for a long period of time, remove the
batteries to avoid battery leakage and corrosion of the battery contacts.
Troubleshooting Error Codes
Code
Problems
Solutions
204
Calculation error
Follow the instructions and operate again
220
Low battery
Please replace the battery or charge it
255
The reflected light
received is weak, or
the measurement time
is too long
Please improve the reflective surface (use a
reflector, white paper, etc.)
256
The received signal is
too strong
Please improve the reflective surface (use a
reflector, or do not aim at strong light)
261
Over range
Please measure within the range
500
Hardware malfunction
If it still appears after the meter has been
turned on/off multiple times, please contact
your dealer.
www.
GlobalTestSupply
.com
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