1. Function and features
The flow sensor detects the
flow rate of water
and converts it into
an
analog output signal
(4 ... 20 mA). In addition a row of LED's
indicates the current flow rate.
• For seamless precision steel to DIN 2391/1 and T-pieces to DIN
2353. The unit can be set for the following T-pieces / sensing
ranges:
Typical measurement errors for
water and different temperatures
of the medium.
2. Controls and visual indication
9
ENGLISH
T-piece
QL 18-18-18
QL 22-18-22
QL 28-18-28
pipe
18 x 1.5
22 x 1.5
28 x 2
sensing range [GPM]
0 ... 2
0 ... 5
0 ... 10
0
80 °C
25 °C
10 °C
Q min.
Q max.
max. neg.
error 10 %
of the end value
max. pos.
error 10 %
of the end value
0
0.2
0.4
0.6
0.8
1.0
1.2
1.4
1.6
1.8
2.0
Flow
Run-
mode
[GPM]
selection of pipe size
10% steps
row of LED’s
here with label for T-piece QL 18-18-18
