Emerson Rosemount 700XA Reference Manual page 114

Operation and maintenance
June 2022
Liquid sample injection valve (LSIV) maintenance
The following procedures detail how to remove and install an LSIV, as well as how to
replace an LSIV's seals.
Install a MAT liquid sample injection valve (LSIV)
You can maintain the LSIV while it is attached to the enclosure. However, it may be easier
to perform maintenance with the LSIV removed from the upper enclosure.
WARNING
Burns
Some parts of the analyzer may be heated to 248 °F (120 °C).
To prevent burns, do not touch any of the hot parts. All parts of an analyzer are always hot
unless it has been switched off and allowed to cool down.
Before fitting, removing, or performing any maintenance on the analyzer, make sure
that it has been switched off and allowed to cool for at least two hours.
When handling the analyzer, always use suitable protective gloves.
These precautions are particularly important when working at heights.
If burned, seek medical treatment immediately.
Figure 5-7: MAT LSIV components
A. Union coupling
B. Actuation section
C. Liquid sample connector
D. Thermal barrier adapter
For a detailed view of the MAT LSIV's components, see
Prerequisites
Although, for the most part, you can remove and disassemble the LSIV with traditional
tools, such as a wrench or pliers, the following tools ar eshipped with your LSIV-mounted
gas chromatograph (GC).
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Reference Manual
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Figure 5-10.
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