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- Series VMM
Device description
Technical changes reserved
- 7 -
1.2
Intended use
Magnetic inductive flow sensor VMM is only intended to be used for measuring and dosing /
batching the flow of electric conductive, liquid media
According to the Pressure Equipment Directive 2014/68/EU, only Group 2 fluids are permitted
to be used.
Due to the magnetic field, the device can be used to measure flow rates up to 33 ft/s (10 m/s)
and a minimum conductivity of 50 μS/cm, when using a synchronized static field
.
WARNING! No safety component!
The flow sensor of the series VMM is not a safety component in accordance with Di-
rective 2006/42/EC (Machine Directive).
Never use the VMM as a safety component.
The operational safety of the device supplied is only guaranteed by intended use. The speci-
fied limits (
§ 4.3 "Sensor installation instructions") may under no circumstances be ex-
ceeded.
Before installing the device, check if the wetted materials of the device are compatible with
the media being used (
CAUTION! Risk of injury due to high temperature!
Hot process media can lead to hot surfaces! Danger of burns with surface temperatures
above 158 °F (70 °C).
Take suitable protective measures, e.g. contact protection.
The contact protection must be devised so that the maximum ambient temperature on
the device is not exceeded.
Flow tube empty (partially filled). / Conductivity too low:
Faulty measurements can occur if the flow tube of the VMM is empty or partially filled or
if the conductivity of the fluid being used is too low.
Make sure that the flow tube of the VMM is always completely filled
(
§ 4.3
Please observe the function "Empty pipe detection" (
p. 10).
Make sure that the fluid being used has a conductivity of at least 50 μS/cm
.
Before ordering and installing, check that the device is suitable for your application.
1.3
Exclusion of liability
We accept no liability for any damage or malfunctions resulting from incorrect installation,
in-appropriate use of the device or failure to follow the instructions in this operating manual.