KEYENCE LK-G Series - Manual (Page 52)

2-6
2
LK-G-M-NO2-E
2 Operations and Functions during Measurement
Setting the Display Value Instantaneously
to Zero (Auto-Zero)
This section describes the auto-zero function, which is used for referencing
zero-point position.
Operation of the key or others resets the present displayed value to " 0.0000 ". By
considering this zero position as a reference, the increase and decrease are displayed in ±
(positive/negative). This function can be used for reference zero-point positioning when a
workpiece is changed.
The example below uses the auto-zero function by using the 150-µm target as a reference.
Auto-zero cannot be set at comparator standby state (displayed as "------") and over-
range state. However, cancellation of auto-zero is possible.
• The auto-zero value is stored according to program No. and OUT.
• The auto-zero value is retained even if the power is turned off.
• When the measurement mode is other than normal, the comparator standby state ("---
---") is established after auto-zero is set.
• Adjusting a master workpiece by using the offset function (auto offset function)
When the offset value is set to the size of the master workpiece, enabling the auto-zero
will set the numerical value to the size of the master workpiece (offset value).
• Auto-zero is set for the measurement value that underwent a measurement mode
process ( page 3-25).
Refer to "Measuring with Offset" (page 3-32).
Display
Positive
indication
Negative
indication New reference point
150 µm
0
Note
Reference