Key Features; Electro-Magnetic Interference; Conformity Declaration - Zenner IMF Instrucciones De Montaje

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■
Open the valves slowly – purge and start ope-
ration , avoid water hammers make sure there
is no leakage.
■
Make electrical connections to the calculator.
■
Fill out the commissioning protocol according
to local or legal requirements.
Connection of the flow sensor to the cal-
culator
Connect pulse output of the IMF with volume
pulse input of the calculator (usually terminal 10
and 11).
Commissioning
■
Check system for leaks.
■
Check while the system is running if progress
of volume, power and temperature is shown on
the calculator display.
■
Install user seals (included) after commissio-
ning.

Key Features

■
Can be installed in the supply or return pipe.
■
Observe correct installation position.
■
Temperature range 5°C - 120°C.
■
Available in qp 3.5 / 6/10 m³ / h.

Electro-magnetic interference

The flow sensor IMF fulfils the national and in-
ternational requirements for interference resis-
tance.
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 di-
stance 1 m).
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Cables leaving the meter should not be laid par-
allel to live cables (230V) (minimum distance
0.2 m).
MID - Initial verification
The flow sensor IMF is produced and tested in
compliance with the European Measuring Instru-
ments Directive (MID). According to this directi-
ve, devices are no longer carrying an initial veri-
fication stamp, but rather the year of the device's
declaration of conformity (recognizable on the
front of the device, for example: M16 = 2016).
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 na-
tional regulations for devices subject to compul-
sory verification apply within the EU.
The duration of initial verification validity in Ger-
many 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.

Conformity declaration

ZENNER International GmbH & Co. KG decla-
res that this product with the number of the EC
type examination certificate DE-009-DE-14-
MI004-PTB012 complies with the requirements
of the EC directives 2014/32/EU (Measuring in-
struments directive) and 89/336/ EEC (electro-
magnetic compatibility).
The most up-to-date information about this pro-
duct and of the declaration of conformity can be
found at www.zenner.com.