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Commissioning
Check system for leaks.
■
Check while the system is running if progress of
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volume, power and temperature is shown on the
calculator display.
Install user seals (included) after commissioning.
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Key Features
Can be installed in the supply or return pipe
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Observe correct installation position
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Temperature range 5 °C - 120 °C
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Available in q
3,5 / 6 / 10 m³/h
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p
Electro-magnetic interference
The flow sensor IMF fulfil the national and inter-
national requirements for interference resistance.
To avoid malfunctions due to other interferences,
do not install fluorescent lamps, switch cabinets
or electric devices such as motors or pumps in the
immediate vicinity of the meter (minimum distance
1 m).
Cables leaving the meter should not be laid parallel
to live cables (230V/400V) (minimum distance 0.2
m).
MID - Initial verification
The flow sensor IMF can be used for the range
of application heat (the examination certificate
number DE-14-MI004-PTB012) or for the range of
application cooling (the examination certificate
number DE-16-M-PTB-0087). The flow sensor IMF
for the range of application heat is produced and
Technical data device of pulse output
Classes in accordance with EN1434-2
Switch variants
Polarity reversal
Duration of the pulse
Pulse break
Bounce time
Input magnitude
Greatest input current
Protection resistor
Pulse value
Connection line length, max.
tested in compliance with the European Measuring
Instruments Directive (MID). The flow sensor IMF
for the range of application cooling is produced
and tested in compliance with the measurement
and calibration (Weights and Measures Act). The
part for the cooling application is produced and
tested in compliance with the German PTB regula-
tion K7.2. According to this directive, devices are
no longer carrying an initial verification stamp, but
rather the year of the device's declaration of con-
formity (recognizable on the front of the device,
for example: M17 = 2017).
The MID controls the use of measuring device up
to the moment they are placed on the market resp.
their first putting into use.
After this, the national regulations for devices
subject to compulsory verification apply within
the EU. The duration of initial verification validity
in Germany remains 5 years for heat meters. After
this period has expired, the measuring device may
no longer be used for billing in commercial use.
The regulations resp. validity period may vary in
other countries of the EU.
If you have questions, please direct them to
info@zenner.com
The declaration of conformity is attached to each
measuring instrument. The latest information
about this product can be accessed or downloaded
from www.zenner.com
Counter output
OA
Reed contact
possible
≥ 100 ms
≥ 100 ms
≤ 1ms
30 V
27 mA
68 Ohm
In accordance with the details on the type plate
25 m
7
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