System Sensor EPSEXP Series Data Sheet WFDS752

EPSEXP Series Proof Pressure Sensor EPSEXP series is designed to handle conditions Designed and approved to operate in hazardous locations Rugged NEMA 4 rated cast aluminum housing Field adjustable pressure sensitivity 1 2 NPT male brass fitting Synchronized activation circuit Two conduit entrances Tamper resistant screw SPDT Form C synchronized switches enclosed in a durable block Listings units are ideal for installation in hazardous locations classified follows I Groups B C D Division 1 2 II Groups E F G Division 1 2 III Division 1 2 Construction The EPSEXP series consists of a rugged 4 rated cast aluminum housing Designed for both indoor and use the EPSEXP series operates across a wide temperature from to 160 Performance The EPSEXP series cover is secured with tamper resistant screw to prevent unauthorized tampering Inside sets of SPDT Form C synchronized switches are enclosed in a terminal block to assure reliable performance Operation Like all System Sensor pressure switches EPSEXP series is designed for easy installation The EPSEXP includes a pressure adjustment wheel that requires no special This feature permits field adjusting of the activation switch Specifications Specifications shall be EPS10EXP or EPS40EXP or EPS120EXP pressure type waterflow switch as manufactured by System Sensor of St Charles They shall be installed on the sprinkler system with connection as shown on the drawings and or as specified herein Pressure switches be of the bellows activated type Switches shall have a maximum service rating of 250 psi and shall be factory adjusted to operate at pressure as follows EPS10EXP 4 to 8 psi EPS40EXP 10 to 100 psi EPS120EXP 10 to 200 psi There shall be two 2 contacts rated at A 125 250 VAC and 2.5 A 6 12 24 VDC The contractor shall furnish and install where indicated on the plans pressure switches to appropriate NFPA standards Switches shall be provided with 1 2 NPT male connection to be connected into the air supply line the system side of any shut off valve Switches shall provide one 1 knockout type and one 1 open hole for 1 2 conduit fitting attachment a ground screw provision for electrical grounding The switch enclosure shall be weatherproof and carry a NEMA 4 rating when used proper electrical fittings and conduit The cover shall incorporate a tamper resistant screw Switches shall be listed by Underwriters It shall be rated for use in hazardous locations classified as Class I Division 1 Groups B C D Class II Division 1 Groups E F Class III Division 1 Specifications Locations I Div 1 Groups B C D II Div 1 Groups E F G III Div 1 psi max NPT male brass fitting sets of SPDT Form C A 1 2 hp 125 250 VAC A 6 12 24 VDC openings for 1 2 conduit to 160 to 71 System Pressure Connection Ratings Dimensions Installed 4.9 W 9.5 H Entrances Temperature Rating Weight Use Ratings Number 4 suitable for indoor outdoor use lbs Sprinkler NFPA 13 Fire Alarm Code NFPA 72 years Adjustment Factory Setting at rising pressure of 4 to 8 psi on increase at 50 psi and on at 30 psi on increase at 125 psi and on at 105 psi Range Differential to 20 psi to 100 psi 3 psi throughout range 3 psi 10 psi 6 psi 100 psi to 200 psi 3 psi 10 psi 9 psi 200 psi Information No Range to 20 psi to 100 psi to 200 psi Hardware Kit contains tamper screws wrenches and conduit plug for cover Ohio Avenue St Charles IL 60174 800 SENSOR2 Fax 630 377 6495 specifications subject to change without notice Visit systemsensor com current product information including the latest version of this data sheet System Sensor 11 11