General Description - Kamstrup flowIQ 3100 Tecnical Description

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flowIQ 3100
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General description

flowIQ® 3100 covers a series of integrated, hermetically sealed water meters, intended for consumption
and distribution measurement of cold domestic water – a static cold water meter based on the ultrasonic
principle. The cold water meter has been developed on the basis of Kamstrup's experience since 1991 with
the development and production of static ultrasonic meters.
flowIQ® 3100 has been subjected to a very comprehensive OIML R49 type test in order to ensure a long-
term stable, accurate and reliable meter. One of the water meter's many advantages is the fact that it has
no wearing parts, which entails longevity.
flowIQ® 3100 is constructed as a vacuum chamber of moulded composite material, mounted on a
measuring tube made of brass or stainless steel. Thus, the electronics are fully protected against
penetration of water, from both measuring tube and surroundings. The meter can without problems be
placed in minor pumping stations, and is also suitable for mounting in distribution wells and meter wells,
which are frequently filled with water.
flowIQ® 3100 is also intended for measurements in blocks of flats and commercial premises. The meter fits
perfectly into a network of MULTICAL® 21 household meters.
The water meter can and must only be opened by Kamstrup A/S. If the meter has been opened and the
sealing has thus been broken, the meter is no longer valid for billing purposes. Furthermore, the factory
guarantee no longer applies.
flowIQ® 3100 measures the water consumption electronically, as a volume, using the ultrasound signal.
Through two ultrasonic transducers, an audio signal is sent with and against the flow direction. A
transducer serves both as a 'speaker' when transmitting, and as a 'microphone' when a signal is received.
The ultrasonic signal traveling with the flow will be the first to reach the opposite transducer, while the
signal running against the flow will be received a little later. The time difference, between the two signals,
can be converted into flow velocity, and thereby also into a volume. The measuring principle is called
'bidirectional ultrasound technique based on the transit time method', which is a proven, long-term stable
and accurate measuring principle.
The accumulated water consumption is displayed by flowIQ® 3100 in cubic metres (m
up to three decimals, i.e. the resolution has been extended to 1 liter only. The display has been specially
designed to operate in a wide temperature range, with high contrast, regardless of lighting - and therefore
easy to read - and still have long lifetime.
In addition to volume reading, a graphic indication of current flow and a number of information codes are
displayed.
All registers are saved daily in the meter data logger (EEPROM) and are kept for 460 days. Furthermore,
monthly data for the latest 36 months are saved.
The water meter is powered by an internal lithium battery with up to 16 years' lifetime.
flowIQ® 3100 comes with integral data communication for Wireless M-Bus – European standard for remote
reading of meters EN 13757-4. You can choose between the following settings:
868 MHz, Mode C1 or Mode T1 - OMS for the European market.
The meter is fitted with an optical eye which makes it possible to read saved consumption data and
info codes, stored in the meter's data logger. Using an optical reading head, with USB connection, the
optical eye, in addition, allows to configure the meter.
Kamstrup A/S • Technical Description • 5512-1242_B1_GB • 05.2015
TECHNICAL DESCRIPTION
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