Zenner IUW Series, Installation And Operating Instructions Manual

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Product description
■
Ultrasonic bulk water meter IUW type for cold
water up to 50 °C
■
Ultrasonic bulk water meter IUWN type with
factory pre-assembled NDC module for cold water
up to 50 °C
Intended use
■
For the consumption measurement of drinking
water up to 50 °C.
■
For the consumption measurement of clean
service water up to 50 °C.
Scope of delivery
■
IUW or IUWN version water meter incl.
NDC module (Nearfield Data Capture)
■
Installation / operating manual,
declaration of conformity
Comment
This installation manual is intended for qualified
specialists only. Basic installation steps are there-
fore not described. In order to ensure a proper flow
measurement, the measuring instrument must be
completely filled with water at all times.
NDC modules or pulse sensors may be retrofitted
to the installation point of the meter if required.
Retrofitting should only be carried out by quali -
fied specialists. It is recommended to secure the
modules against unauthorised removal with a user
safeguard.
Permissible installation positions
Activating the measuring instrument
Upon delivery, the display of the measuring instru-
ment is in “sleep mode”. The display is activated ten
seconds after the measuring instrument has been
filled with water. For this purpose, the pipeline or
measuring instrument must be completely vented or
filled with water.
Readout options of the measuring instrument via
the NFC (Near Field Communication) interface
The following data can be directly read out from the
measuring instrument via the NFC interface, e.g.
with NFC-enabled device:
■
Device ID (serial number)
■
Current (balanced) consumption display or total
volume in case of an overflow
■
Date / Time
■
Firmware version
■
Up to 15 previous month's value
■
Temperature
■
Key date / key date volume
■
Forward flow volume
■
Return flow volume
■
Alarm or error message
■
Battery end
The measuring instrument can be retrofitted with
the following NDC modules, or ordered with a
factory-fitted module (IUWN):
M-Bus, Pulse, wM-Bus, LoRaWAN ®
General information
■
Water meters are precision instruments. Protect
against shock and vibration. Store in a frost-free,
cool and dry location.
■
Suitable measures must be taken to ensure that
any contamination or damage is excluded during
transport to the installation location.
■
The IUW series has been approved with a flow
sensitivity class U0/D0 (no inlet or outlet section
required). However, to achieve the best measure -
ment results, we recommend observing national
regulations and recognised rules of technology.
■
For the IUW series at least 3xDN are recommend -
ed as a straight inlet section. Ideally, at least 2xDN
should be available as the outlet distance.
English