Omron L User Manual page 24

Section 1
FEATURES
Useful Warning Functions
Built-in Laser Life Monitor
When the laser of Sensor Head deteriorates, [LDDWN] will appear for approx. five
seconds on the Main Display when the power is turned ON. This assists in
understanding when the Sensor Head should be replaced with a new one.
LD ON ZERO ENABLE
(mm)
SUB
ZX-L-N
7
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