KEYENCE LK-2000 Series - Manual (Page 18)

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The LK-501/503 offers two measurement modes to be used according to
the measurement conditions.
Long-range mode
Measures within a range of 250 to 750 mm.
Use long-range mode to mount the sensor head at a distance from the
target, or to obtain a long measurement range.
High-precision mode
Measures within a range of 250 to 450 mm.
Use high-precision mode to obtain high repeatability.
■ Mode selection
Hold down the UP key for the SHIFT adjustment, and turn the key-
operated laser switch from OFF to ON. This changes the measurement
mode.
Note: The measurement mode is factory-set to long-range mode.
The measurement mode is toggled every time the above operation is
performed.
Long-range mode
➞ High-precision mode ➞ Long-range mode ➞
High-precision mode....
■ Mode confirmation
Press the ZERO/RESET key for the SHIFT adjustment and the RESET
key for the SPAN adjustment simultaneously. The indicators illuminate to
show the current measurement mode.
FUNCTIONS MEASUREMENT MODE SELECTION [WITH LK-501/503 ONLY]
When long-range mode is set:
Status of indicators
All five indicators illuminate.
When high-precision mode is set:
Status of indicators
Three indicators, BRIGHT, DARK, and LASER ON, illuminate.
TIMING STABILITY BRIGHT DARK LASER ON
TIMING STABILITY BRIGHT DARK LASER ON