Product Description; Installation Instruction - Zenner WPD Manual Del Usuario

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Product description

Bulk water meter type Woltman WPD / WPHD for cold water up to 50° C.
Bulk water meter type WPDE/WPHDE (radio water meter) with factory as-
sembled and parameterized EDC radio module for cold water up to 50°C.
Intended use
For the measuring of drinking water up to 50°C.
For the measuring of clean industrial water up to 50°C.
Scope of delivery
1 water meter, 1 instruction manual.
Remark:
These installation instructions are intended only for trained personnel.
Basic installation steps are therefore not described.
The meter reading must be multiplied by factor x10, for the nominal sizes
DN150 to DN300, the nominal sizes DN400 and DN500 by factor x100.
Permissible installation positions
The WP series is intended for installation in the horizontal and vertical po-
✓ ✓ ✓ ✓
sitions.

Installation instruction

■
The WP series has been approved at a flow sensitivity class U0/D0. How-
ever, in order to achieve the best results, we recommend observing the
national regulations and accepted codes of practice.
■
For WP series is recommended a straight inlet section of at least 3xDN.
If there is no sufficient inlet section be present, or behind pipe elbow, we
recommend to use a honeycomb rectifier from ZENNER.
■
Ideally, there should be a straight outlet section distance of at least 2xDN.
■
Before installing the meter, the piping must be thoroughly flushed out.
■
The pipe diameter should not be reduced, directly in front and behind the
meter.
■
Flange gaskets must not protrude into the pipe.
■
It should be taken to ensure that the flow direction of the meter coincides
with the flow direction of the pipeline.
■
Valves or other flow regulation should be mounted as possible behind the
meter.
■
The meter should not be installed at the highest point of the pipe ins-
tallation to prevent air bubbles in the meter and the pipeline is always
completely filled.
■
The meter should be protected against dirt particles like sand or stones by
an appropriate filter.
■
The meter must be protected against pressure blow in the pipeline net-
work.
■
The maximum temperature of the measured medium must not exceed the
permissible 50°C for cold water.
■
To avoid damage of the measuring insert by pressure surges, the pipeline
must be filled slowly after installation.
■
It is important to ensure that the meter is installed free of stress in the pipe.
In a non-stress-free mounting the meter body may be damaged and water
can escape.
■
The pipeline pressure must not exceed the maximum working pressure of
the meter, as this can lead to leaks and damage of the meter.
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■
To prevent the disassembly of the meter we recommend to secure the
connection interface with a safety device (adhesive label, seal, etc.).
Installation instructions for the replacement of the metrological unit:
■
The exchange of exchangeable metrological units (measuring insert
should only be performed by trained specialist staff.
■
Before changing the measuring insert, the pipe must be rinsed carefully
shut off the pressure side and empty the pipe.
■
The compliance of the interfaces marking on the measuring insert and at
the specified interface (body) must be checked (interface WP1 for DN50 -
150 and the interface WP5 for DN200 - 300) .
■
After disassembly of the measuring insert old gaskets / seals must be
removed. The sealing surfaces must be cleaned and checked for damage.
■
It is important to ensure that the inlet area is free of deposit, before a new
metrological unit is installed, because as these can lead to deviations of
the measurement result.
■
Use only the genuine seals, which are delivered together with the measu-
ring insert. These have to be checked prior to installation for damage and
fit.
■
When using lubricants or assembly pastes for the seals it must be ensured
that they are suitable for contact with drinking water.
■
Tighten the screws of the measuring unit evenly crosswise (M12: DN50 –
DN125 = 60Nm; M16: DN150 – DN300 = 85Nm).
■
To prevent the disassembly of the replacable measuring insert, it must be
connected with the connection interface (housing) by a sealing wire.
Declaration of conformity
ZENNER International GmbH & Co. KG declares that the product with the
number of EC type-examination certifi cates DE-15-MI001-PTB010 & DE-
15-MI001-PTB011 complies with the essential requirements of the EC di-
rective 2014/32/EU (Measuring instrument directive). ZENNER International
GmbH & Co. KG hereby declares that the products for Remote Metering;
complies with the application Wireless Communications with the essential
requirements of the EC directive 1999/5/CE (R&TTE).
The declaration of conformity and the latest information about this product
can be accessed or downloaded from
www.zenner.com