Vaisala MHT410 Bedienungsanleitung Seite 17

To avoid damage to the installation valve of the transformer, do
not step on the transmitter when the transmitter is installed.
Follow the safety regulations related to the application and
installation site.
Installation
Before you install the transmitter:
Go through the check list in section
n
on the next
Read this whole guide carefully.
n
Make sure there is no negative pressure in the transformer. If
n
there is negative pressure when you open the bleed screw
during installation, air will flow into the transformer oil tank.
Do not open the ball valve on the transformer until you are
n
instructed to do so in this guide.
Make sure the bleed screw on the mounting nut is closed.
n
page.
Planning the Installation
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