Calibration Using Serial Data And Externally Controlled Start/Stop - Kamstrup ULTRAFLOW 54 Technical Description

TECHNICAL DESCRIPTION
The excess water quantity in connection with start is the water volume that runs through the sensor during the
t
time before the first accumulation
1 b
with stop is the water volume passing through the sensor during the time
stop
The volume accumulated during the test can be stated as:
V × t
∑
1 b 2
+ V ... + V +
2 n
t + t
b 1 b 2

8.16 Calibration using serial data and externally controlled start/stop

The routine for calibrating ULTRAFLOW
The sensor must be in test mode (see paragraph 8.14 Test mode).
Calibration is started by connecting the 4
test. E.g. this might take place at the same time as the master meter is started or at the same time as the diverter
to the weight is being changed. ULTRAFLOW
terminate the test. Subsequently, the volume accumulated during the test can be read with respect to start and
stop. From the test has been completed until the accumulated quantity of water can be read, minimum 2 seconds
must pass (T ). No communication must take place with ULTRAFLOW
read
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 controlled at intervals of 1 second.
V
within the test period. In the same way the lacking quantity in connection
1
V × t
n e 1
t + t
e 1 e 2
®
using serial data is outlined below.
th
pin of the internal plug (see Figure 33), simultaneously with starting the
®
accumulates the water volume until you disconnect pin 4 and
5512-385 GB/02.2014/Rev. H1
Figure 32
t
1 e
Figure 33
®
during testing.
®
ULTRAFLOW 54 and 34
from the last accumulation
V
until
n
47