MICRO-EPSILON optoNCDT 1750, Руководство по эксплуатации

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Page 64
Setting Sensor Parameters
optoNCDT 1750
7.5.3 Zeroing and Mastering
Use zeroing and setting masters to calculate the measurement value based on a selectable reference value
and to output it. This shifts the output range. This feature can be useful, for example, when several sensors
carry out measurements simultaneously in thickness and planeness measurements.
Zero setting/
Mastering Select source Inactive Normal measurement value resp. Zeroing/Mastering is
undone.
Select button /
Multifunction input Select control element for mastering.
Master value Value Indication e.g. of thickness of a master part.
Value range -2 up to max. +2 x measuring range
Set master value Adopts the master value but does not execute it.
Activate master value / reset Mastering/reset is done via buttons in the web interface.
Mastering (setting masters) is used to compensate for mechanical tolerances in the sensor measurement
setup or to correct chronological (thermal) changes to the measuring system. The master value, also called
calibration value, is defined as the target value. The master value is the reading that is issued as result of
measuring a master object. Zeroing is when you set a master with 0 (zero) as the master value. When setting
a master, the sensor characteristic is moved in parallel. Moving the characteristic reduces the relevant measu-
ring range of a sensor (the further master value and master position are located, the greater the reduction).
Setting masters/Zeroing – Step-by-Step:
Place target and sensor into their required positions.
Send the master command.
The master command waits for a maximum of 2 seconds for the next measurement value and uses this as
master value. If no value is measured within this time, e.g. in case of external triggering, the command returns
with the error „E220 Timeout“. After setting the master, the sensor will issue new readings that relate to the
master value. If you click the
Inactive
button to undo the mastering process, the system reverts to the
state that existed before the master was set. An invalid master value, e.g. no peak present, is acknowledged
with the Error
E602 Master value is out of range
.
Grey shaded
fields require a
selection.
Value
Dark-bordered
fields require
you to specifie
a value.