
USER'S GUIDE____________________________________________________________________
46 __________________________________________________________________ M210704EN-E
CAUTION
In pressurized processes it is essential to tighten the supporting nuts and
screws very carefully to prevent loosening of the probe by the action of
pressure.
NOTE
When the DMT340 is installed in a process with a pressure differing
from the selected operating pressure at the time of ordering, please enter
the pressure value of the process into the transmitter memory, see
section Pressure Compensation Setting on page 101. Use the serial line
commands XPRES and PRES or the display/keypad. The pressure set
buttons on the mo
therboard inside the transmitter can also be used to set
pressure compensation.
Ball Valve Installation Kit for DMT348
The ball valve installation kit (Vaisala order code: BALLVALVE-1) is
preferred when connecting the probe to a pressurized process or pipeline.
Use the ball valve set or a 1/2" ball valve assembly with a ball hole of
ø14 mm or more. If you install the probe (ø12 mm) in a process pipe,
please note that the nominal size of the pipe must be at least 1 inch (2.54
cm). Use the manual press handle to press the probe into the pressurized
(< 10 bar) process or pipeline.
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