Vaisala HUMICAP MMT310, User Manual

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Chapter 3 _________________________________________________________________Mounting
VAISALA _______________________________________________________________________ 11
CHAPTER 3
MOUNTING
Selecting a place for the probe
Select a place which gives a true picture of the process. Oil should
circulate freely around the sensor; clear oil flow is recommended.
Install the probe directly into the circulation system and not into the
oil reservoir because of deposition.
It is recommended that the sensor head is installed directly in the
process through the ball valve assembly. When the ball valve
assembly is used, the pipe does not have to be emptied or shut down
for installation or removal of the probe. Install the sensor head
transversely against the direction of the process flow.
NOTE Avoid mounting the transmitter housing close to steam sources
or directly exposed to rain. To ensure an IP 65 class protection.
Always mount the transmitter housing with the cable bushings
pointing downwards.
NOTE Take care not to damage the pipe of the probe. If
the pipe is damaged, the probe head is less tight
and will not go through the clasp nut. Make sure
that the filter is tightly fastened to protect the
sensors.