© 2020 All rights reserved. Data subject to change without notice.
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Rev. B | 2020.11
LPT-M - Operation Manual
7.4 Calibrating an ESH-A Remote Sensor Connected to
an LPT-M
There are two diff erent processes for calibrating an ESH-A Remote Sensor. One process is for a new
or replacement sensor and the other is for a properly functioning sensor. For either pr
ocess, fi rst
ensure that the sensor has been continually powered for at least 24 hours.
7.4.1 Zero and Span Calibration of a Responsive ESH-A Remote Sensor
(done at the LPT-M)
If the sensor does not need to be replaced and is responding correctly, the Zero and Span
calibrations will need to be done at LPT-M transmitter that the ESH-A is connected to.
In the Sensor Confi guration Menu (passcode 3032), press either ARROW key to scroll through
the menu and select the channel the ESH-A is assigned to. Follow the instructions in Section
8.2
Calibrating the Internal Sensor(s)
with the exception of applying the gas to the ESH-A sensor
opening instead of the LPT-M sensor opening
.
7.4.2 Zero Calibration of a New or Replacement ESH-A Remote Sensor
If a new replacement sensor has been installed, the ESH-A will require a zero calibration of its
sensor. This process will normally be required if the sensor has been replaced or there is concern
that the sensor is not responding correctly.
Make sure the ESH-A Remote Sensor is powered up and has been warmed up for a 48 hour period
prior to calibration.
Step 1
Open the ESH-A Remote Sensor enclosure. Move the jumpers from their resting position to JP1-1
and JP1-2 (bottom two jumper positions).
