OPERATING MANUAL HPC & UMC4
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2. Maintenance
2.1
Transmitter
The transmitter is maintenance-free.
We recommend cleaning the sight-glass in regular intervals; check the enclosure for corrosion damages
and the solid seat of the cable glands.
2.2
Coriolis mass flow sensor
The sensor is generally maintenance-free. The function only is influenced by corrosion or by deposits
inside the inside of the measuring pipes. Therefore both have to be avoided mandatorily. Deposits have
to be removed by suitably washing up or cleaning the internal pipes and splitter. Otherwise the measuring
precision cannot be obtained.
Danger
In the case of a loop breakage, e. g. due to corrosion, medium leaks, fills the enclo-
sure. Medium can get into the mounted transmitter or terminal box also (particularly at
high process pressures)!
The transmitter can stand under pressure, too.
Take care if there are:
Visible discolourations or humidity condensation at the sight-glass of the transmitter,
corrosion damages to the enclosure,
deformation of the sensor enclosure.
3. Identification
Manufacturer
Heinrichs Messtechnik GmbH
Robert-Perthel-Straße 9
D-50739 Cologne
Phone: +49 221 49708-0
Fax: +49 221 49708-178
Internet:
E-mail:
Product type
Mass-flow meter for liquid and gaseous products
Product name
Sensor type HPC
Transmitter type UMC4, suitable for use with Heinrichs Messtechnik Coriolis
mass-flow sensors
Version no.
1.0, dated January 31, 2019
