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FMT230, FMT250
THERMAL MASS FLOWMETER | CI/FMT230/250-EN REV. B
1
Safety
General information and instructions
These instructions are an important part of the product and
must be retained for future reference.
Installation, commissioning, and maintenance of the product
may only be performed by trained specialist personnel who have
been authorized by the plant operator accordingly. The specialist
personnel must have read and understood the manual and must
comply with its instructions.
For additional information or if specific problems occur that are
not discussed in these instructions, contact the manufacturer.
The content of these instructions is neither part of nor an
amendment to any previous or existing agreement, promise or
legal relationship.
Modifications and repairs to the product may only be performed
if expressly permitted by these instructions.
Information and symbols on the product must be observed.
These may not be removed and must be fully legible at all times.
The operating company must strictly observe the applicable
national regulations relating to the installation, function testing,
repair and maintenance of electrical products.
Warnings
The warnings in these instructions are structured as follows:
DANGER
The signal word ‘
DANGER
’ indicates an imminent danger.
Failure to observe this information will result in death or
severe injury.
WARNING
The signal word ‘
WARNING
’ indicates an imminent danger.
Failure to observe this information may result in death or
severe injury.
CAUTION
The signal word ‘
CAUTION
’ indicates an imminent danger.
Failure to observe this information may result in minor or
moderate injury.
NOTICE
The signal word
‘NOTICE’
indicates possible material damage.
Note
‘
Note
’ indicates useful or important information about the
product.
Intended use
This device can be used in the following applications:
• As a plug-in sensor flanged into the pipe component in
piping with nominal diameters DN 25 to 200 (1 to 8 in).
• Through a welding adapter directly in piping of nominal
diameter DN 100 (4 in) and above, as well as for non-
circular cross-sections.
This device is intended for the following uses:
• for direct mass flow measurement of gases and gas
mixtures in closed pipelines.
• for indirect measurement of volume flows
(through standard density and mass current).
• for measuring the temperature of the measuring
medium.
