KROHNE H250 M40 EN - Manual (Page 5)

SAFETY INSTRUCTIONS
1
5
H250 M40
www.krohne.com 11/2012 - 4000640702 MA H250 M40 R02 en
Safety instructions
1.1 Intended use
The variable area flowmeters are suitable for measuring clean gases, vapours and liquids.
Intended use:
• The product may not contain any ferromagnetic particles or solids. It may be necessary to
install magnetic filters or mechanical filters.
• The product must be sufficiently liquid and free of deposits.
• Avoid pressure surges and pulsing flows.
• Open valves slowly. Do not use solenoid valves.
Use suitable measures to eliminate compression vibrations during gas
measurements:
• Short pipeline lengths to next restriction
• Nominal pipe size not greater than nominal device size
• Use of floats with damping
• Increase in operating pressure (while taking into account the resulting change in density and
thus change in scale)
Observe installation conditions according to VDI/VDE 3513-3
CAUTION!
Responsibility for the use of the measuring devices with regard to suitability, intended use and
corrosion resistance of the used materials against the measured fluid lies solely with the
operator.
INFORMATION!
The manufacturer is not liable for any damage resulting from improper use or use for other than
the intended purpose.
DANGER!
For devices used in hazardous areas, additional safety notes apply; please refer to the Ex
documentation.
WARNING!
Responsibility for the use of the measurement devices with regard to suitability, intended use
and corrosion resistance of the used materials against the measured fluid lies solely with the
operator.
The manufacturer is not liable for any damage resulting from improper use or use for other than
the intended purpose.
Do not use any abrasive media containing solid particles or highly viscous media.
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