*6.*7 .++*6*38.&16*7796* ;.8(-
5*(.+.(&8.437378&11&8.43&3)5*6&8.3,37869(8.437
911*8.3
!-* *6.*7 )/978&'1* .++*6*38.&1 6*7796* ;.8(- is designed for
overpressure, vacuum, and differential pressure applications. The scaled
adjustment knob allows changes to the switching pressure to be made without a
pressure gage. The ADPS is available with settings from 0.08˝ w.c. (20 Pa) to 20˝
w.c. (5000 Pa). The silicone diaphragm and PA 6.6 body make the Series ADPS
perfect for use with air and other noncombustible gases. The Series ADPS can be
used in monitoring air filters, ventilators, and industrial cooling-air circuits along
with controlling air and fire-protection flaps and many other applications.
Use only with mediums such as air, or other noncombustible or non-aggressive
gases. Otherwise operating faults or accidents may occur.
4938.3, ;.8(-
First check the pressure switch to ascertain whether any damage is visible on the
housing. If the housing is leaky because of damage, the pressure switch must not
be used.
Switching pressure specifications apply to vertical installation which is also the
recommended position with pressure connections pointing downwards.
Only if there is no potential for condensate forming can you mount the pressure
switch horizontally. In this case, however, the switching values are approximately
0.08 in w.c. (20 Pa) higher as indicated on the scale. In the horizontal position, the
pressure switch should be mounted ‘lying down’ only (that is to say with the
electrical connections pointing upwards). Do not mount the pressure switch in a
hanging position (that is to say, not ‘overhead’ with the electrical connections
pointing downwards). Otherwise the device will function inaccurately.
a) Mounting with screws or brackets
1. To mount the pressure switch, L-shaped A-288 and S-shaped A-289
mounting brackets can be ordered separately. To secure the device on the rear
side of the housing, only use the sheet metal screws (3.5 x 8 mm) which are
supplied together with the mounting brackets. Under no circumstances must
you use longer screws. Otherwise, the base of the housing could be punctured
resulting in the pressure switch leaking.
2. You can also mount the pressure switch directly on a wall. To do this use
screws with a maximum diameter of 0.315˝ (8.0 mm), if you use the outer
mounting lugs to screw the device in place. Do not tighten the screws so much
that the base of the device is deformed. Otherwise, the pressure switch can be
shifted out of position, or leak.
378&11.3,47*7
25468&38 Pressure tubing cannot be kinked. Pay particular attention to this point
if you run hoses over an edge. It is better to form a loop. If the hoses are kinked,
the device cannot function accurately.
a) For connection to the pressure switch two fittings inherent in the housing are
provided for hoses with an internal diameter of 1/4˝ (6.0 mm).
1. Connect a hose with the higher pressure to socket P1 which is located on the
lower section of the housing.
2. Connect a hose with the lower pressure to socket P2 which is located on the
middle section of the housing.
After you have installed the hoses, it is absolutely essential to check them for
tightness of fit at the connection points and to make sure that they run without any
kinks.
#% !"!
-43* ;;;);=*6.378(42
$>!%" &< *2&.1.3+4);=*62&.1(42
!
*6:.(*Air and noncombustible, compatible gases.
#*88*)&8*6.&17Diaphragm material: Silicone; Housing material & switch body:
POM and PA 6.6; Cover: Polystyrene.
!*25*6&896*.2.87Process ambient temperature from -4 to 185˚F
(-20 to 85˚C).
6*7796*.2.87Max. Operating Pressure: 40” W.C. (10 kPa) for all pressure
ranges.
;.8(-!=5*Single-pole double-throw (SPDT).
*5*&8&'.1.8=±15% FS.
1*(86.(&1&8.3,Standard: Max., 1.5A/250 VAC, max. switching rate: 6
cycles/min.; Gold Contact Option: 0.1 A/ 24 VDC.
1*(86.(&1433*(8.437Push-on screw terminals. M20x1.5 with cable strain
relief or optional 1/2˝ NPT connection.
64(*77433*(8.4375/16˝ (7.94 mm) outside diameter tubing, 1/4˝ (6.0 mm)
inside diameter tubing.
4938.3,6.*38&8.43Vertically, with pressure connections pointing downwards.
*(-&3.(&1#460.3,.+*Over 10
6
switching operations.
#*.,-85.6 oz (160 g).
3(14796*&8.3,IP54.
,*3(=5564:&17CE, RoHS.
Ø
11/64
[
Ø4.5]
21/64
[8.5]
2-17/64
[57.5]
7/8
[22]
2
-21/64
[
59]
1
9/64
[
7.5]
51/64
[18]
-
(P2)
+
(
P1)
Ø
15/64
[
Ø6]
2-9/16
[65]
1-31/32
[50]
(2 pages)
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