© 2020 All rights reserved. Data subject to change without notice.
59
Rev. B | 2020.11
LPT-M - Operation Manual
7.3.1 Calibration Adapter Plug
Use a slight twisting motion as you gently push the calibration adapter plug (p/n:
CET-7000-CAP)
into the sensor opening. If it is hard to insert, moisten the O-ring seal slightly then try re-inserting
it. If the splash guard is installed, use the Cal Clip (p/n:
CET-SGC)
.
NOTE:
Response time will be slower with the splash guard installed.
7.3.2 Zero Calibration Shift
If all that is desired is to do a zero calibration shift, complete Step 1 in Section 7.2
Calibrating the
Internal Sensor(s)
. A z
ero shift calibration is only done when the LPT-M is being installed for the fi rst
time. The reason for a zero shift calibration is to compensate for the new environment in which the
LPT-M is being installed.
7.3.3 Zero - Requires Override
If the gas level (possible residual gas) is too high, but still within the override range, the display will
indicate that an override is required.
To override the value use the UP ARROW to select the desired value. To keep the original zero value,
use the DOWN ARROW. Press ENTER to Exit.
7.3.4 Span - Requires Override
During the Span calibration, readings are taken and from the results sensitivity is calculated and
compared to the original sensitivity of the sensor at the time of installation. If this sensitivity is
below the override range, but above the fault limit, the display will indicate that an override is
