User’s & Technical Manual –
ANALOG LIQUID LEVEL SENSOR ALLS6000
GELEC
Industrial Electronics
PAGE
11
7.
CONTROL UNIT ALLS6000
The ALLS6000 is a complete unit with built-in
electric connection terminals, electronic board,
air flow regulator, adjusting level knobs, a
calibration button and air pipe connectors, in
light green box, suitable for electronic devices,
and DIN rail mounting. The unit is made to be
installed at the inside of an electrical control
panel, placed on a mounting rail of Ω type
(NS32/NS35).
8.
PNEUMATIC SECTION
DEFLATION TUBE
A thin deflating tube should be clamped on the wall of the tank with
its nozzle immersed into the liquid. A small quantity of air is
provided to the tube via air pipes and deflates into the liquid in a
form of bubbles.
The deflation tube must have a 60
o
V-cut at the bottom for proper
air deflation and a pipe connector on top of it, for the connection
with the (S-O) pipe. The active height in which you will have the
measurement is 100cm, but the top of the tube must be at least
20cm above the level for avoiding liquid suction.
The tube may be as long as you need, according to your application,
although notice that the liquid level must not exceed the maximum
level of 1.5m because this may damage the air pressure sensor.
The tube diameter should be from
Ø
10mm to
Ø
30mm, as the device calibration has been
done in an average
Ø
20mm tube. You can use a tube with different dimensions, but notice
that you may have to adjust the air flow regulator.
fig. 8
fig. 9
