ZENNER SINGLE-JET METERS - Manual (Page 3)

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General notes
■ Watermeters are precision instruments. Protect
against shock and vibration. Storage under cool, dry
and frost free conditions.
■ Thesealingsurfacesareequippedwiththreadpro-
tectioncaps,andthusprotectedfromdamage.
■ Check and ensure before beginning the installation:
– Thatthesealingfacesareflatandfreefromda-
mage such as notches, grooves, etc..
– Thatallindicationsonthedialarereadble*.
– Themeterfitsintype,size,temperatureandpres-
sureratingtotheinstallationandmeteringpoint.
■ Withpollutedorloadedwaterwerecommendthat
filters or strainers in the inlet must be installed
upstreamofthemeter.
■ Themetershouldalwaysbeinstalledatthelowest
possiblepointofthepipingaswellasfrostprotec-
ted,topreventtheaccumulationofairanddama-
ges.
■ Thewatermetermustbeinstalledintothepipeline
free of any of mechanical forces or tensions.
■ Watermeters must be operating completely filled
with water - for wet dial meters this includes also
thecounter!
■ Themetermustbeprotectedwithappropriatemea-
suresagainstpressureshocksinthepipeline.
■ Whenthereisdangeroffrost,emptycompletelyand
shutofftheinstallation(includingthemeter),ifne-
cessary, dismount the meter.
■ Themetermustalwaysbeeasilyaccessibleandle-
gible, including all indications on the dial.
■ We recommend that the installation points on the
pipelineshouldbesecuredwithasealagainstunau-
thorizeddismounting.Thesealshouldnotberemo-
vableorloosenedwithoutvisibledamage.
■ Theinstallationhastobedonebyqualifiprofessi-
onal personnel. We would refer to the applicable
rulesoftheDINISO4064:2015,Part5.
Installation:
1. Readtheseinstructionscarefullyrightuptothe
end!
2. Closevalvesupstreamanddownstreamofthe
meter.
3. Releasepressureattheinstallationpoint.
4. Dismount existing meters or meter blanks.
5. Useonlynewandflawlesssealingmaterial.
6. Check the seal face for damage.
7. Install the new meter according to the correct
flowdirection and installation position. Ensure
that the sealing joints do not fall out, or are being
damaged.
8. Screwtheconnectionnutsandtightenthem.
9. Openvalescarefullyandavoidpressureshocks,
purgeadequately.
10. Checkinstallationforleakage.Thedialandthe
indications regarding the conformity /metrology
must be visible and readable at any time.
Additional instructions for installation of plas-
tic meter:
■ In order to guarantee a stress-free installation,
werecommendtheuseofawatermeterinstalla-
tionbracket(WZAG).
■ Recommended tightening torque for the connec-
tors:min.20Nmuptomax.30Nm.
Declaration of conformity
ZENNERInternationalGmbH&Co.KG
declaresthattheproductwiththenumberof
oneoftheECtype-examinationcertificates
DE-06-MI001-PTB005,DE-06-MI001-PTB006,
DE-07-MI001-PTB009,DE-08-MI001-PTB016,
DE-08-MI001-PTB017,DE-07-MI001-PTB010,
DE-13-MI001-PTB001,DE-15-MI001-PTB004,
CH-MI001-10040 or CH-MI001-14062 com-
plieswiththeessentialrequirementsoftheEC
directive 2004/22/EC (Measuring instruments
directive).
ZENNERInternationalGmbH&Co.KGherebyde-
clares that the product for Remote Metering with
theapplicationWirelessCommunicationscomplies
withtheessentialrequirementsoftheECdirective
1999/5/CE(R&TTE).
Themostup-to-dateinformationaboutthisproduct
can be found at www.zenner.com
English
*Dataregardingtheflowratesaredependingontherespectivenominalsize.