Potter ADPS-300-2S User manual

Listing/Approvals: UL Standard 508 Guide
(NKPZ) and CSA Standard C22.2 No. 14-
M Class (321106) for Pressure Operated
Industrial Control Equipment.
UL Standard 873 Guide (XAPX) and CSA
Standard C22.2 No. 24 Class (481302) for
Temperature Indicating and Regulating
Equipment.
CE Marked
Ambient/Media Temperature Range:
-4°F to 180°F (-20°C to 82°C)
Construction:
• NEMA Type 4X Enclosure for indoor or
outdoor use. (To maintain 4X rating, use
appropriate Type 4 conduit hub.)
• Forged Brass or 316 S.S. Pressure Con-
nections
• Aluminum Diecast Base with Polymer En-
closure
• Beryllium Copper Diaphragm (Stainless
steel isolator diaphragm included for pro-
tection of beryllium copper diaphragm on
models with stainless steel pressure con-
nection.)
• Nitrile Pressure Sealing O-ring
Switch Contact:
Snap-Action SPDT (Form C)
15 Amps at 125/250/480 VAC
1/8 HP at 125 VAC
1/4 HP at 250 VAC
CAUTION: Direct control of motors with HP
ratings greater than the ratings shown
could result in premature failure of the
ADPS or significantly shortened operat-
ing life.
GENERALDESCRIPTION
The model ADPS is an Adjustable Deadband
Pressure Switch with independent set and re-
set points which are adjustable throughout the
entire operating range of the switch. The mini-
mum deadband (minimum span between set
and reset points) may be obtained at any point
in the operating range of the switch. A change
in pressure greater than the high setting will
reposition the switch mechanism to open or
close a single snap-action electrical switch.
This control device is designed for use as an
operating control in applications sensing air,
Potter Electric Signal Company • 2081 Craig Road, St. Louis, MO, 63146-4161 • Phone: [phone]/Canada 888-882-1833 • www.pottersignal.com
water, or any fluid not harmful to the pressure
connection, diaphragm or nitrile pressure-seal-
ing o-ring. Where an operating control would
result in personal injury and/or loss of property,
it is the responsibility of the installer to add
devices (safety, limit controls) that protect
against, or systems (alarm, supervisory sys-
tems) that warn of control failure.
This device is not intended for applications in
explosive environments or use with hazardous
fluids.
PAGE 1 OF 4PRINTED IN USA MFG. #5401060 - REV H
5/02
ADPS
ADJUSTABLE DEADBAND
PRESSURE SWITCH
ELBATSUJDA GNITAREPO EGNAR
MUMINIM DNABDAED FOORP ERUSSERP YROTCAF GNITTES
GISP003-52GISP21GISP004GISP06/09
GISP006-05GISP52GISP056GISP002/003
See Model Options on page 4.

PAGE 2 OF 4PRINTED IN USA MFG. #5401060 - REV H
5/02
ADPS
ADJUSTABLE DEADBAND
PRESSURE SWITCH
MOUNTING AND INSTALLATION
The Model ADPS is typically mounted in an upright position on a flat surface by two 1/4" screws
through the mounting flanges on the base or by two 1/4-20 screws into the back of the base.
See Fig. 1 for mounting dimensions. Locate the switch where vibration, shock and ambient
temperature fluctuations are minimal. To avoid damage to the switch, always hold a wrench
on the pressure connection hex when tightening pressure connections. Never tighten the
pressure connection by turning the switch housing into the fitting.
FIG. 1
WIRING
Use properly rated temperature supply wire for the anticipated service temperature. Make all
electrical connections in accordance with the National Electrical Code and local regulations.
A wiring check may be performed by manually actuating the switch actuator on the side of the
snap-action switch inside the enclosure. (See Fig. 3) NOTE: Do not loosen or remove the two (2)
screws that secure the switch to the switch mounting bracket.
4.47
.88
1.66
3.26
5.41
2.25
1.33
DWG. #1080-1
(2) 14-20 x .50 DEEP
THREADED HOLES FOR
BACK MOUNTING OPTION
(1) Ø.875 HOLE
FOR 12" CONDUIT
CONNECTION
3.38
(2) Ø.266 MOUNTING
THRU HOLES
FOR 14" SCREWS
.94
4.65
COM.
N.C. N.O. N.O.N.C. COM. DWG. #1060-2
SWITCH ACTION ON
(OPERATING POINT)
HIGH PRESSURE
(RESET POINT)
LOW PRESSURE
SWITCH ACTION ON
N.C.
N.O.
COM.
N.C.
N.O.
COM.
FIG. 2

PAGE 3 OF 4PRINTED IN USA MFG. #5401060 - REV H
5/02
ADPS
ADJUSTABLE DEADBAND
PRESSURE SWITCH
FIG. 3
ADJUSTMENTS
The two thumb adjustment dials, accessible
through the enclosure cover, are used to
adjust the set point and reset point of the
switch. The dial scales and pointer may be
used to give an indication of the low and high
set points.
The high setting adjustment dial is calibrated
for increasing pressure. The low setting ad-
justment dial is calibrated for decreasing pres-
sure. For best accuracy, make the final ad-
justments with a pressure gauge at the actual
working media pressure and temperature en-
countered in the application.
The minimum deadband (minimum span be-
tween set and reset points) may be obtained
at any point in the operating range of the
switch.
When the desired settings are obtained, re-
place the adjustment cover. The adjustment
cover and enclosure cover can be made
tamper resistant by a single sealing wire
inserted through the hole in the locking bar.
The repeatability of the set and reset points is
typically ±1% of the operating range.
GROUND SCREW
SNAP-ACTION
SPDT SWITCH
MANUAL SWITCH
ACTUATOR FOR
TESTING
LOW SETTING
ADJUSTMENT DIAL
HIGH SETTING
ADJUSTMENT DIAL
ALUMINUM DIECAST BASE
14"-18 NPT FEMALE PRESSURE CONNECTION
(OPTIONAL 38"-18 NPT FEMALE)
LOCKING BAR
WITH HOLE FOR
SEALING WIRE
ENCLOSURE COVER
ADJUSTMENT
COVER
DWG. #1060-3
DO NOT LOOSEN OR
REMOVE SCREWS

PAGE 4 OF 4PRINTED IN USA MFG. #5401060 - REV H
5/02
ADPS
ADJUSTABLE DEADBAND
PRESSURE SWITCH
ORDERING INFORMATION
STOCK NO. MODEL NO.
ADJUSTABLE
OPERATING
RANGE
MINIMUM
DEADBAND
PROOF
PRESSURE
PRESSURE
CONNECTION DIAPHRAGM
1370010 ADPS-300-1B 25-300 PSIG 12 PSIG 400 PSIG 1/4” NPT
BRASS BERYLLIUM COPPER
1370020 ADPS-300-1S 25-300 PSIG 12 PSIG 400 PSIG 1/4” NPT
316 S.S.
BERYLLIUM COPPER
W/316 S.S. ISOLATOR
1370030 ADPS-300-2S 25-300 PSIG 12 PSIG 400 PSIG 3/8” NPT
316 S.S.
BERYLLIUM COPPER
W/316 S.S. ISOLATOR
1370040 ADPS-600-1B 50-600 PSIG 25 PSIG 650 PSIG 1/4” NPT
BRASS BERYLLIUM COPPER
1370050 ADPS-600-1S 50-600 PSIG 25 PSIG 650 PSIG 1/4” NPT
316 S.S.
BERYLLIUM COPPER
W/316 S.S. ISOLATOR
1370060 ADPS-600-2S 50-600 PSIG 25 PSIG 650 PSIG 3/8” NPT
316 S.S.
BERYLLIUM COPPER
W/316 S.S. ISOLATOR