Speedaire 41H528 Manuel D'utilisation page 2

Speedaire Operating Instructions Manual
Speedaire
Cylinder Proximity Switch
Installation on Cylinder
E
1. Remove screw from the barrel nut
N
on the end of the band assembly.
G
L
I Figure 2
S
2. With weld down insert the band into
H
the slot at the bottom of the carrier.
Figure 3
3. Wrap band around cylinder. Locate
the hole on the band that comes
closest to the barrel nut.
Figure 4
4. Cut the band midway between
the chosen hole and the above
adjacent hole.
Figure 5
magnetically Operated
®
5. Take the cut end of the band (with
weld down) and insert it into the cap.
Make sure the cut end is in the slot
on the cap and the hole of the band
is aligned with the hole in the cap.
Figure 6
6. Turn the band over and insert the
screw through the deep hole in
the cap, into the band. Wrap band
around cylinder. Position switch on
cylinder, insert screw into barrel nut
and tighten.
Figure 7
Operation
Reed Switch Working Principle: When a
magnetic field moves within proximity
of the switch, magnetism is induced
into the leads and forces the contacts
to close.
Normally Open Reed
Switch Open
Figure 8
2
41H528 thru 41H533
Electronic Switch Working Principle:
The magnetoresistive sensor responds
to a North or South magnetic pole, as
shown below by providing a digital
signal to the output.
N
+
Output
Sensor
Sensor
0
-
S
Supply
Magnet
Figure 9
Sinking (NPN) vs. sourcing (PNP): The
Electronic switches are available in
Sinking or Sourcing versions. The basic
difference between these two ways
of solid state switching is as follows:
The Sourcing method connects or
switches one side of the load to
the positive (+) side of the supply.
The negative (-) side is common or
connected directly to the other side of
the load. The Sinking method connects
or switches one side of the load to
the negative (-) side of the supply. The
positive (+) side is common or connected
directly to the other side of the load.
+
Output
1
-
Supply