9
GMS GDS–27
mm
200
50
h
E
3
2
m
E
4
3
p
E
3
4
s
E
3
1
E
10
1
a
20
E
40
b
50
E
10
c
40
E
40
d
20
E
20
k
÷
=
≈
≈
≈
÷
≈
+
≥
=
+
≥
=
+
≥
=
+
≥
=
Mounting in a
bypass measuring tube
. We
recommend to keep the tube diameter.
For: GDS–27_–20, 21, 22, 30, 31
In the case of vertical mounting in outer are-
as or in the case of high mechanical exertion
we recommend to install
protective hose
on
the cable.
All sensors with cable outlets
Cable
PVC hose
ϕ
15/10 mm
Hose clip
tanks
In the case of
mounting in the pipe
it is nec-
essary to provide the minimum distance of
the inner walls from the electrode at 5 mm.
In some cases (sticky fluids, low permittiv
-
ity liquids) it is better to mount the sensor to
pipe bend.
For GDS–27_–10, 11, 21, 22
In the case of vertical mounting it is possible
to use
hysteresis setting
for simple two
state regulation (pump control). The height
of the controlled level is done by sensitivity
setting, the gap between the min. and max.
is defined by hysteresis.
For GDS–27_–20, 21, 22, 30, 31
mm
200
50
h
E
3
2
m
E
4
3
p
E
3
4
s
E
3
1
E
10
1
a
20
E
40
b
50
E
10
c
40
E
40
d
20
E
20
k
÷
=
≈
≈
≈
÷
≈
+
≥
=
+
≥
=
+
≥
=
+
≥
=
E – Electrode
length in mm
Fig. 7:
Vertical installation for non-
conductive fluids
Fig. 8:
Bypass measuring tube
E – Electrode length in mm
