MULTICAL® 21 & flowIQ® 2101 /..02 /..03 TECHNICAL DESCRIPTION
Kamstrup A/S •Technical Description • 5512-897_J1_GB • 06.2016 45
Reverse flow is counted and logged in a separate internal register in the meter and can only be read on a
monthly basis. If a meter has been incorrectly installed (with reverse flow direction) for a longer period, the
reverse volume could be read in the monthly logger. This log is, similar to the legal log, an absolute log –
which means that the total reverse consumption are shown in the latest monthly log at the end of the
month. So even if the fault is corrected, the total reverse consumption cannot be seen until the end of the
month.
The total reverse volume is measured and recorded whether the info code is being activated or not.
It should be emphasized that the register for backwards volume is NOT covered by the type approval, and
therefore not approved for billing purposes.
The register can only be read via the optical eye with LogView.
The legal volume register, V1, and thus the meter reading is not affected by the reverse flow.
Info code – RADIO OFF (transport mode)
This info code is active in the display when the water meter leaves Kamstrup A/S, and indicates,
that the meter is still in ‘transport mode’ and that the built-in Wireless M-Bus radio transmitter has not yet
been activated.
In ‘transport mode’, the meter displays info codes, if any. These are not logged into the corresponding
registers, and are not added to the corresponding hour counters.
The Wireless M-Bus radio transmitter activates, when water starts flowing and the meter has registered
approx. 0.5 liters of water. The radio transmitter remains active.
The info code RADIO OFF is an info code signal, which either flashes or is inactive. When RADIO OFF flashes
in the display, the radio is off. When the RADIO OFF signal is inactive in the display, the Wireless M-Bus
radio transmitter is on.
The info code is not included in the Wireless M-Bus signal.
10.7.5 Adjustment mark
The symbol ‘A’ and the corresponding figure indicate the number of flow adjustments and legal changes
after factory verification. For further description, see paragraph ‘Legal changes outside seal’.
It is possible to reset the legal registers and change the factory programmed flow curve to a limited extent.
The flow adjustment makes it possible to adjust the existing curve at three points. The total adjustment
compared to the factory adjustment cannot exceed +/- 10 %.
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