GWF Unico Installation And Operating Instructions Manual page 6

dry, shut-off valves must be opened slowly in order to avoid
pressure shocks on the meter.
5. Maintenance and service
GWF water meters are maintenance free under normal ope-
rating conditions. They excel in that they have a long life span.
The life span essentially depends on the water quality and on
the conditions and capacity of flow. We recommend however to
examine the following points periodically.
1. Before working on the installation, it is to be examined
whether the pressure is relieved in the pipeline.
2. When the water supply is closed, all the pointers of the
register should stand still. When the water supply/inlet is
slowly opened the pointers should begin to turn-over even-
ly and slowly.
3. If the supply network is subject to dirty conditions, it is re-
commended, to clean the strainer on the inlet of the meter
on a regular basis.
4. The stamp on the lead seal should be verified if it is in tact.
5. It should be verified that all shut-off valves before and after
the meter are fully opened, and if they can be closed and
there are no leaks present.
6. The meter and pipe work of the installation should be che-
cked for leaks.
7. Check to see that the environment, in which the meter is
installed, is devoid of water, where dripping water onto the
register could lead to water ingress.
8. Pay attention that the meter connections are securely atta-
ched and that all pipelines are undamaged and intact.
9. It should be verified that the ambient temperature lies wi-
thin the admissible temperature range of the water meter.
Basis for the installation, commissioning, monitoring and
maintenance of water meters is the OIML R49 Part 1 – Metro-
logical and technical requirements.
6. Disassembly and disposal
It should be ensured that the water meters are dis-
posed of in a recycling just manner. The local and
national regulations for environmental protection
are to be considered.
7. Safety guidelines
1. The water meters should always be handled only on the
meter housing and should not be carried by either the lid
or pulser cable.
2. The devices may only be used for the intended purpose. GWF
AG guarantees in the context of the general trading condi-
tions the quality of its products. The responsibility for the
correct installation as well as professional handling falls wi-
thin the scope and receipt of goods on the owner or operator.
8. Technical data IPG 14
Switching element
Switching voltage U
max
Switching current I
max
Switching capacity P
max
Resistor R
Conductor cross section
Switching cycles
GWF AG
Obergrundstrasse 119
6005 Lucerne, Switzerland
Reed
42 V AC/DC
100 mA
4 W
18 Ohm
0,14 mm
2
app. 10
7
T +41 41 319 50 50
info@gwf.ch, www.gwf.ch
9. Interface GWFcoder
UNICOcoder , MTKcoder
®
SCR(IEC)
M-Bus EN 13757
UNICOcoder MP, MTKcoder
®
Multi Protocol Interface
SCR(IEC)
M-Bus EN 13757
The polarity of the connecting wires makes no difference (polartity
insensitive)
10. Safety information about radio
Use in EU :
Hereby, GWF AG declares that the radio equipment type
RCM -H200 is in compliance with Directive 2014/53/EU.
®
The full text of the EU declaration of conformity is available at
the following internet address: www.gwf.ch
Use in Canada (IC):
■ This device complies with Industry Canada licence-exempt
RSS standard(s). Operation is subject to the following two
conditions:
(1) This device may not interference, and
(2) This device must accept any interference, including in-
terference that may cause undesired operation of the device.
■ This device must be installed to provide at least 20 cm
separation from the human body at all times.
Use in United Kingdom:
■ Hereby, GWF AG declares that the radio equipment type
RCM -H200 is in compliance with Radio Equipment Regu-
®
lations 2017 No. 1206 as amended.
■ The full text of the UK declaration of conformity is available
at the following internet address: www.gwf.ch
Manufacturer
Product
Type, model
Product marking
EU Directives
Normative
Type examination
Surveillance procedure 2014/32/EU Annex II, module D
We declare as manufacturer:
Products labelled accordingly are manufactured according of the listed Directives and
Standards. They correspond to the tested type samples. The production is subject to the
stated surveillance procedure.
Place and date
01.07.2018
Markus Helfenstein
Senior VP R&D
Technical support:
T +41 41 319 52 00, support@gwf.ch
®
, MTWcoder
® ®
Protocol acc. IEC 62056-21 Mode A (IEC 1107)
Wired M-Bus (OMS)
MP, MTWcoder MP
® ®
Protocol acc. IEC 62056-21 Mode A (IEC 1107)
Wired M-Bus (OMS)
EU declaration of conformity
GWF AG, Obergrundstrasse 119, 6005 Lucerne, Switzerland
Water meter
MTK3... MTW3... Unico2...
Mxx 1259
MTK3... MTW3... CH-MI001-07005
Unico2... Unico3... CH-MI001-07004
2014/32/EU ─ MID
www.metas.ch/certsearch
MTK3... MTW3... OIML R49-1:2013, EN 14154-1:2011,
EN ISO 4064-1:2017
Unico2... Unico3... OIML R49:2006, EN 14154:2011
CH-MI001-07005 / CH-MI001-07004,
MID – 2014/32/EU Annex II, module B
Eidgenössisches Institut für Metrologie, METAS-Cert
CH-3003 Bern-Wabern, Notified Body 1259
Eidgenössisches Institut für Metrologie, METAS-Cert
CH-3003 Bern-Wabern, Notified Body 1259
Lucerne, 01.02.2023
Thomas Birer
Head of Metrology Laboratory
Subject to modification, 21.08.2023 – BAdfei10207
Unico3...