Calibration - Honeywell Sensepoint XRL Instruction Manual

4.4 Calibration

CAUTION
Always use a gas cylinder that is within its expiration date.
NOTE
It is preferential to use a smartphone running the app to perform
maintenance tasks.
This section describes how to perform a calibration using the control
buttons. Before starting calibration, make sure that the gas detector is
powered on.
1. Activate inhibit mode by pressing and holding the UP button for 2
seconds. Make sure that the yellow indicator is on.
2. Connect the positive probe of a voltmeter to the positive terminal,
and connect the negative probe to the negative terminal of the
output voltage monitor.
3. Move to the next stage perform a zero calibration.
a) Move to the next step by holding the UP button for 2 seconds.
4. Refer to the regulator manufacturer
for instructions on how to start and
stop the gas flow from the cylinder.
Maintenance
33