Installation; Planning The Installation; Recommended Installation Locations - Vaisala MHT410 User Manual

4. Installation
Before you install the transmitter:
• Go through the check list in section
• Read this whole guide carefully.
The installation instructions in this section are the same as in the MHT410 Quick
Guide.
4.1 Planning the Installation
• Choose the installation location on the transformer (see
Locations (page
CAUTION!
from the valve specifications. The correct thread of the valve is female 1.5"
NPT. Do not install the transmitter in a valve with a different thread. For
example, the R thread is incorrect. If you use a different thread than female
1.5" NPT, your equipment may be damaged and the connection is not leak
tight. If you are not sure which thread your installation valve has, verify the
thread with a 1.5" NPT thread gauge.
• Make sure you have all the required tools for installing the transmitter. The required tools
are presented in the installation instructions.
• Choose the output signals: analog and/or digital.
• Choose the electrical wiring option. If the transmitter was ordered with the Vaisala cable
CBL210392-5M, the cable is already pre-connected to the transmitter according to Wiring
Option 1.
More Information
‣ Wiring Diagrams (page 96)
4.1.1 Recommended Installation Locations
The probe must always be installed in a valve. The correct thread of the valve is female 1.5"
NPT. Do not install the transmitter in a valve with a different thread. For example, the R thread
is incorrect. If you use a different thread than female 1.5" NPT, your equipment may be
damaged and the connection is not leak tight.
17)).
Make sure the installation valve and threads are appropriate
Planning the Installation (page
Recommended Installation
Chapter 4 – Installation
17).
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