KEYENCE LK-3100 - Manual (Page 17)

17
The LK-011 offers two measurement modes to be used according to the
measurement conditions.
Normal mode:
Used to measure targets other than mirror-surfaced or transparent
objects.
The LK-011 is initially set to the normal mode.
Mirror-surface measurement mode:
Used to measure mirror-surfaced objects. To measure such targets,
change the measurement mode by using the following procedure. Also,
tilt the sensor head in the direction that enables it to receive the specular
reflection as shown below.
■ Setting the mirror-surface measurement mode
1. Turn off the key-operated laser switch.
2. Hold down both the key, for the SHIFT adjustment, and the ZERO
RESET
key,
and then press the key for the SPAN adjustment.
• This operation toggles between the normal and mirror-surface
measurement modes.
• The current mode can be confirmed with the indicators at the
center of the controller front panel.
USING EACH FUNCTION MEASUREMENT MODE SELECTION
OFF
ON
0 MON(V) MON(mA)
1 2 3 AUTO
GAIN
LOW HIGH
TIMING STABILITY
ZERO/RESET
24V DC IN REMOTE GND TIMING ZERO GND ALARM GND NEAR FAR
RESET
BRIGHT DARK LASER ON
SHIFT SPAN
+ –
2 3 1
TIMING STABILITY BRIGHT DARK LASER ON
TIMING STABILITY BRIGHT DARK LASER ON
■ Normal mode
Illuminate
Illuminate
■ Mirror-surface
measurement mode
■ Mounting the sensor head for mirror-surface
measurement
When the mirror-surface measurement mode is set, the sensor head
should be tilted to receive the specular reflection. Since the LK-011
receives light that is reflected at 45
°, the sensor head should be tilted to
22.5 °, half of the reflection angle. The LK-011 is designed so that it can
be easily tilted to any angle needed to receive the specular reflection by
setting the bottom of the sensor head vertically.
The LK-011 is designed so that it can
be tilted to the proper angle to receive
the specular reflection by putting this
part against a vertical wall.
22.5 °