System Sensor EPS40-1 EPS40-2

EPS40 1 and EPS40 2 Pressure Sensor EPS40 Series switches are designed use in dry pipe systems or pressure tanks and water supplies of automatic water control valves Sensitivity adjustment wheel no special tools required Reinforced diaphragm resists pressure spikes Two conduit entrances Both one and two switch models available Listings ERTIFI O EPS40 1 has a single SPDT switch while the EPS40 2 model two SPDT switches The EPS40 Series features field pressure sensitivity to provide an alarm response between and 100 psi All models are factory set for use in a nominal psi system The EPS40 1 is factory set to respond at 30 psi at pressure while the EPS40 2 is factory set to respond at psi on rising pressure and 30 psi at decreasing pressure The adjustment wheel requires no special tools and does not switch synchronization on the EPS40 2 The EPS40 1 and supervisory pressure switches are NEMA 4 rated EPS40 1 and EPS40 2 Specifications EPS40 1 SPDT EPS40 2 2 SPDT shall be an EPS40 1 or EPS40 2 pressure type waterflow switch as manufactured by System Sensor of St Charles IL They shall be on the sprinkler system with connection as shown on the drawings and or as specified herein Pressure switches shall be of the type Switches shall have a maximum service pressure rating of 300 psi and shall be adjustable from 10 100 psi There be one 1 or two 2 SPDT contacts rated at 10.0 Amp 125 250 VAC and 2.5 Amp 6 12 24 VDC The contractor shall furnish and where indicated on the plans pressure switches according to appropriate NFPA standards Switches shall be provided with a NPT pressure connection to be connected into the air supply line on the system side of any shut off valve Switches shall provide 1 knockout and 1 open hole for conduit fitting attachment and a ground screw provision for electrical grounding switch enclosure shall be weatherproof and carry a UL 4x NEMA 4 rating when used with proper electrical fittings and conduit The cover incorporate tamper resistant screws The unit shall be listed by Underwriters Laboratories Inc the California State Fire Marshal MEA LPCB VdS and approved by Factory Mutual Temperature Tamper Switch Weight or outdoor use to 160 to 71 Models Optional P N 546 8000 Models Factory Installed UL 4x NEMA 4 for indoor or use lbs 54 Kg Sprinkler NFPA 13 or Two Family Dwelling NFPA 13D Occupancies up to 4 Stories 13R Fire Alarm Code NFPA 72 years EPS40 1 and EPS40 2 continued Specifications Operating Adjustment Range to 100 psi psi Setting Contact 3 psi 10 psi 6 psi 100 operates at decreasing pressure 30 psi operates at increasing pressure at psi and decreasing pressure at 30 psi One set SPDT Form C Two sets SPDT Form C A HP 125 250 VAC A 6 12 24 VDC Use Connection NPT male H 3.325 W 4.250 L 13.0 cm 8.4 cm 10.8 cm Sprinkler Applications TO SUPERVISORY OF FIRE ALARM PANEL TO ALARM CIRCUIT FIRE ALARM PANEL FOR LINE Y ALARM OFF SYSTEM Connections Switch Basic Dimensions EPS40 1 EPS40 2 AT 40 P S I NORMAL AT 30 P S I LOW TRIP PT AT 30 P S I LOW TRIP PT AT 40 P S I NORMAL 1 AT 50 P S I HIGH TRIP PT 2 ADJUSTMENT NPT Information No Parts Pressure Supervisory Switch One SPDT 10 PSI Pressure Supervisory Switch Two SPDT 10 PSI Pressure Supervisory Switch One SPDT 10 PSI ULC Model Pressure Supervisory Switch Two SPDT 10 PSI ULC Model Tamper Screws for Cover of EPS Tamper Proof Wrench for Cover of EPS Tamper Switch for EPS Series 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 5 14