Pentax PLP-602R - Manual (Page 21)

2.3 Warning display
Off level display lamp turns on in red as warning display and rotation of
rotor and emission of laser beam stop under following situation.
(1) When the instrument is tilted more than ± 5.7° (± 10%) then
power supply is turned on
Turn off the power supply and install the instrument horizontally
(within ± 5.7°) and turn on the power supply again.
(2) When some shock is added to the instrument while at work
Turn off the power supply and turn on the power supply again.
• If the work is to be continued, perform this procedure after resetting
the laser beam at the “reference mark”.
(3) When, status that the automatic self-leveling function does not
become stable continues for about 3’ after power supply is turned on
Turn off the power supply and turn on the power supply again.
But warning is displayed farther, change the setting place of
instrument or stop the construction machines which may be the cause
of vibraton.
NOTE:
• After warning is displayed (Off level display lamp turns on in red), if no
key is pressed for about 10’, power supply is turned off automatically.
• At above (2), warning display does not work while automatic
self-leveling function stops (Off level display lamp turns on in red).
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ON ON
OFF OFF
BATTER TERY Y
CHECK CHECK PO POWER WER
OFF OFF
LE LEVEL VEL
MANU MANUAL AL
MODE MODE
Off level display lamp