22
FMT230, FMT250
THERMAL MASS FLOWMETER | CI/FMT230/250-EN REV. B
6
Installation
Safety instructions
DANGER
Danger to life due to piping under pressure!
Sensors which may eject during installation or removal in
piping remaining under pressure may pose a danger to life.
• Install or remove a sensor only if the piping is
depressurized.
• As an alternative, use a pipe component with an
integrated hop tap fitting.
WARNING
Risk of injury due to process conditions.
The process conditions, for example high pressures and
temperatures, toxic and aggressive measuring media, can
give rise to hazards when working on the device.
• Before working on the device, make sure that the process
conditions do not pose any hazards.
• If necessary, wear suited personal protective equipment
when working on the device.
• Depressurize and empty the device / piping, allow to cool
and purge if necessary.
Installation conditions
Installation location and assembly
Note the following points when selecting the installation
location and when mounting the sensor:
• The ambient conditions (IP rating, ambient temperature
range T
ambient
) of the device must be adhered to at the
installation location.
• Sensors and transmitters must not be exposed to direct
sunlight. If necessary, provide a suitable means of sun
protection on site. The limit values for ambient
temperature T
ambient
must be adhered to.
• On flange devices, ensure that the counterflanges of the
piping are aligned plane parallel. Only install flange
devices with suitable gaskets.
• Prevent the sensor from coming into contact with other
objects.
• The device is designed for industrial applications.
No special EMC protective measures are required if the
electromagnetic fields and interference at the installation
location of the device comply with ‘Best Practice’ (in
accordance with the standards listed in the declaration of
conformity).
Maintain a suitable distance from electromagnetic fields
and interference that extend beyond the usual
dimensions.
Seals
Users are responsible for selecting and mounting suitable
gaskets (material, shape).
Note the following points when selecting and mounting gaskets:
• Use gaskets made from a material that is compatible
with the measuring medium and measuring medium
temperature.
• Gaskets must not extend into the flow area, since
possible turbulence may influence the accuracy of the
device.
