ULTRAFLOW® 54/34
Kamstrup A/S · Technical description · 5512-2464_A1_GB_08.2019
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Calibration using serial data and externally controlled start/stop
The routine for calibrating ULTRAFLOW® using serial data is outlined below.
Figure 57
The sensor must be in test mode (see paragraph
Calibration is started by grounding pin 4 of the internal connector (see
) and at the same time starting the test
in a flow stand. This might e.g. take place at the same time as the master meter starts accumulating pulses or the diverter
of the weight is changed. Then, ULTRAFLOW® accumulates the water volume until pin 4 is disconnected to terminate the
test. Subsequently, the volume accumulated during the test can be read in consideration of start and stop. From the test
has been completed and until the accumulated quantity of water can be read, minimum 2 seconds must pass (T
read
).
Communication with ULTRAFLOW® during test is not allowed.
Pulse emission stops when pin 4 is disconnected. The read water quantity and the number of emitted pulses may differ
as the pulse emission is monitored in intervals of 1 second.