9
Verifying uLtraFLOW
2.
®
installation
2.1
ULTRAFLOW
®
with flow range from 0.6 m³/h
to 2.5 m³/h (DN15 and DN20) can be fitted
without considering the inlet pipes.
All other ULTRAFLOW
®
sizes must be fitted
so that the inlet pipe is straight at min. 3...5
x DN.
Please consider the installation angle when
fitting ULTRAFLOW
®
. Please refer to the
restrictions stipulated in the installation
manual for ULTRAFLOW
®
technical data for uLtraFLOW
2.2
®
Qn
[m³/h]
Pulse value
[pulses/
litre]
CCC-code
0.6
300
116
1.5
100
119
2.0
100
119
2.5
50
136
3.0
50
151
3.5
50
151
6.0
25
137
10
25
137
15
10
120
25
10
120
40
5
158
60
2.5
170
150
1
147
400
0.4
171
1000
0.25
172
Type: FET (open drain) with pull-up resi-
stance of 100 k
Ω
Output impedance ~10 k
Ω
Pulse duration
2...5 ms
Break
Depends on the actual
water flow
Frequency
0 - 128 Hz, depending
on flow meter type and
approval range
Figure 4
Connection
•
Via 3-wire cable
Yellow:
Signal
Red:
Supply
Blue:
GND
Supply:
3.6 VDC ± 10%
From start-up until true flow reading is
attained and when commencing verifica-
tion, takes 16 seconds.
MeasuriNg FLOW
•
To attain a correct flow measurement, ver-
ficiation should take at least 3 minutes.
evacuation
•
ULTRAFLOW
®
must not be evacuated
(subjected to vacuum).
suggested test points
•
(flying start/stop)
The table shows flow meters and related
test quantities and test times: