Potter PS10 - Page 21

PRINTED IN USA MKT. #8910218 - REV J
MFG.#5401060 - 11/03
ADPS
ADJUSTABLE DEADBAND
PRESSURE SWITCH
PAGE 1 OF 2
Description
The Model ADPS is an Adjustable Deadband Pressure Switch with
independent set and reset points which are adjustable throughout
the entire operating range of the switch. The minimum 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,water,oranyfluidnotharmfultothe
pressure connection, diaphragm or nitrile pressure-sealing o-ring. The
instances 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 systems) that warn of control failure.
This device is not intended for applications in explosive environments
orusewithhazardousfluids.
Mounting and Installation
The Model ADPS is typically mounted in an upright position on a
fl a t  s u r f a c e  b y  t w o  1 / 4 "  s c r e w s  t h r o u g h  t h e  m o u n t i n g  fl a n g e s  o n  t h e 
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fluctuations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fitting.
Listings/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connections
•AluminumDiecastbasewithPolymerenclosure
•BerylliumCopperdiaphragm(Stainlesssteelisolator  
diaphragm included for protection of beryllium copper
diaphragm on models with stainless steel pressure connection.)
•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
* Non-inductive loads only
Adjustable
Operating Range
Minimum
Deadband
Proof
Pressure
Factory
Setting
25-300 PSIG 12 PSIG 400 PSIG 90/60 PSIG
Direct control of motors with HP ratings greater than those shown could
damage the ADPS switch, resulting in sprinkler system damage and
unintentionalwaterflow.Theinstallationofapressurereliefvalveset
at or below the systems maximum operating pressure is recommended.
See Model Options on page 2.
Potter Electric Signal Company• 2081 Craig Road, St. Louis, MO, 63146-4161 • Phone: 800-325-3936/Canada 888-882-1833 • www.pottersignal.com
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)
Fig. 2
Do not loosen or remove the two (2) screws that
secure the switch to the switch mounting bracket.