Servomex SERVOTOUGH Oxy, Operator'S Manual

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01910001B_8 © Servomex Group Limited. 2020
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9.
SAMPLE SYSTEM INTEGRATION
The SERVOTOUGH Oxy is a precision analy�cal device, suitable for a wide variety of
indu
strial applica�ons. Though every effort has been taken to ensure that the
analyser is highly robust to differing sample stream composi�ons, it should be noted
that if the requirements of Sec�on 2.4
and
Sec�on 2.5 are not met then the analyser
can be damaged and the measurement invalidated.
9.1
Sample Systems
The analyser will be damaged if condensa�on is allowed to form within the
measurement cell or pipe work. It is important that the sample gas dew points
specified in Sec�on 2.4 are maintained at all �mes.
Note:
It is recommended that sample systems contain a flow monitoring device on the outlet
of the analyser, ideally with a status indication communicating back to the control
room, or that the analyser is fitted with a Servomex Flowcube flow sensor option. Any
failure in the sample flow can then be quickly diagnosed and corrective action taken.
Note:
In the event of power failure to the analyser or the sample system, condensation can
form within the sample pipework if the sample gas has a dew point below that of the
ambient temperature.
It is recommended that if there is a power failure that the sample system contains
sufficient protection and interlocks on coolers and "hot" sample elements to prevent
gas flow though the analyser until these are at working temperature.
If the sample gas is considered corrosive, then it is recommended that during a power
failure or while the sample system is not at operational conditions, that instrument air
is used to purge the measurement pipework of the analyser.
9.2
Corrosive Purge
Failure of the corrosive purge could result in damage to the electronics within the
sample/control compartment, which could result in an analyser failure.
The corrosive purge gas must comply with the requirements of Sec�on 2.5. If the
purge gas is not dry or contains other contaminates, i.e. oil vapours, then this can
result in damage to the electronics within the sample/control compartment, which
could result in an analyser failure.