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CAUTION
Check one more time if all gas connections are leak tight connected and
all cable glands for electrical connection are securely tight. Check also
one more time the different gas pressures for correct settings. Apply
power to the unit (24 VDC) by turning on the external switch.
7.2.1 Checking the device settings and signals
If you have completed the commissioning steps listed above, it may be necessary to
adjust the flow of some gases or adjust some other settings.
Since the default settings cannot take account of the site conditions which may differ
from the standard ones, it may be necessary to readjust the settings, for example the
flush times, in some cases.
This is also the case if the gas chromatograph was not supplied with the calibration gas
in which case the calibration settings must be repeated.
If the device is not working well after you have made changes, an extended (complete)
check of the current device parameters is required.
This can be carried out according to the hints in the software manual. For example, you
must check and adjust the bespoke alarm limits and settings for the sequence of
sample gases and the calibration and protocol settings.
Parameterized output signals can be measured using suitable measuring equipment.
The digital communication (Modbus, etc.) can be checked using suitable tools (for
example a protocol analyser).
7.3 Decommissioning
Please proceed in the following sequence to decommission the measuring instrument
if you wish to use it again later at a different location. Also refer to the information in
the section entitled “Dismantling” and particularly remember the following:
ATTENTION
Data will be lost if there is no power supply and no internal power supply
from the battery (for example archive data and time settings). The device
will no longer start correctly. You will then require a Honeywell service visit.
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