Potter PS10 - Page 18

MODEL PS40-EXF
EXPLOSION PROOF
PRESSURE SWITCH
PRINTED IN USA MKT. #5401030 - REV K
7/07
PAGE 1 OF 3
The Potter PS40-EXF is a pressure actuated switch designed primarily to
detect a 69 kPA/.69 BAR (10 PSI) increase and/or decrease from normal
systempressureinautomaticfiresprinklersystemslocatedinhazardous
locationsclassifiedasshownabove.
Typical applications are air pressure supervision in dry pipe systems and
pressure supervision of pressure tanks, air supply or water supply.
Installation And Test Procedure
Mounting: Device should be mounted in upright position (threaded
connection down). Requires NEMA Type 4 conduit hub for outdoor
installations.
Testing: The operation of the pressure supervisory switch and
its associated protective system should be tested upon completion
of installation and periodically thereafter in accordance with the
applicable codes and standards and/or the authority having jurisdiction
(manufacturer recommends quarterly or more frequently)
Dry System: Connect PS40-EXF in air supply line on the system side
of any shutoff or check valve.
Provision for testing the unit can be accomplished with the installation
of a Potter Bleeder Valve (Model BVL) in the line to the PS40-EXF.
CENELEC, DEMKO NO. D 03 Atex 0311298, EN50018,
EN50014, FM Approved
Dimensions: 152mm Dia. x 178mm H
Enclosure: Cast aluminum
Pressure Connection: 1/2"NPTmalebrassfitting
Conduit Entrance: 1/2" NPT female conduit opening
Factory Adjustment:
One switch operates on decrease at 207 kPA/2.07 BAR
(30 PSI) and one switch operates on increase at
345 kPA/3.45 BAR (50 PSI).
Pressure Range:
69 kPA/.69 BAR (10 PSI) to 1207 kPA/12.07 BAR (175 PSI)
Maximum Differential (Approx.):
14 kPA/.14 BAR (2 PSI) at 138 kPA/1.38 BAR (20 PSI)
34 kPA/.34 BAR (5 PSI) at 1207 kPA/12.07 BAR (175 PSI)
Maximum Proof Pressure: 1724 kPA/17.24 BAR (250 PSI)
Switch Contacts: Two Sets of SPDT (Form C)
15.0 Amps at 125/250 VAC
2.0 Amps at 30 VDC
EnvironmentalSpecifications:
ForuseinhazardouslocationsclassifiedasEExdIIBT6(IP66)
NEMA 4 and 9 Rated Enclosure
Temperature Range: -40°F to 140°F (-40°C to 60°C)
PS40-EXF Stock Number 1350002
Potter Electric Signal Company• 2081 Craig Road, St. Louis, MO, 63146-4161 • Phone: 800-325-3936/Canada 888-882-1833 • www.pottersignal.com
Model Description Stock No.
PS40-EXF Pressure switch with 2 sets of 1350002
contacts (SPDT)
BVL Bleeder Valve 1000018
Hex Key (For cover removal) 5250074
Hex Key (For pressure adjustment access) 5250073
Testing the PS40-EXF may activate other system connected
devices.