Vaisala MMT310 - Manual (Page 17)

Chapter 3 ________________________________________________________________ Installation
VAISALA ________________________________________________________________________ 17
CHAPTER 3
INSTALLATION
This chapter provides you with information that is intended to help you
install the MMT310.
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 66 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.