CÔNG TẮC ÁP SUẤT ĐIỀU CHỈNH 2 NGƯỠNG BÁO (0.69 - 13.80 BAR) SYSTEM SENSOR EPS120-2
The EPS120-1 has a single SPDT switch. The EPS120-2 model contains two SPDT switches. The EPS120 Series features fieldadjustable pressure sensitivity to provide an alarm response between 10 and 200 psi. All models are factory set for use in a nominal 115 psi system. The EPS120-1 is factory set to respond at 105 psi at decreasing pressure. The EPS120-2 is factory set to respond at 125 psi on rising pressure and 105 psi on decreasing pressure. The pressure adjustment wheel requires no special tools and does not affect switch synchronization on the EPS120-2.
Thông số kỷ thuật
Mã sản phẩm : EPS120-2
Thương hiệu : SYSTEM SENSOR
Xuất xứ : Trung Quốc
Adjustment Pressure Range : 10-200 PSI
Contact Ratings : Two sets SPDT (Form C); 10.0A, 1/2 HP @ 125/250VAC; 2.5A @ 6/12/24VDC
Differential : Approx. 3 PSI @ 10 psi, 9 psi @ 200 psi
Enclosure Rating : UL NEMA 4
Factory Setting : Operates at decreasing pressure 105 PSI
Operating Temperature Range : -40°F to 160°F (-40°C to 71°C)
Overall Dimensions : 5.12"H x 3.325"W x 4.25"L (13cm x 8.4cm x 10.8cm)
Pressure Connection : 1/2" NPT male
Shipping Weight : 1.2 lbs. (.54 kg)
UL Pressure Rating : 250 PSI
Warranty : 3 years
Architectural/Engineering Specifications
Model shall be an EPS120-1 or EPS120-2 pressure-type waterflow switch as manufactured by System Sensor of St. Charles, IL. They shall be installed on the sprinkler system with connection as shown on the drawings and/or as specified herein. Pressure switches shall be of the bellows-activated type. Switches shall have a maximum service pressure rating of 300 psi and shall be adjustable from 10–200 psi. There shall 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 install, where indicated on the plans, pressure switches according to appropriate NFPA standards. Switches shall be provided with a ½˝ NPTm male pressure connection to be connected into the air supply line on the system side of any shut-off valve. Switches shall provide 1 knockout type and 1 open hole for ½˝ conduit fitting attachment and a ground screw provision for electrical grounding. The switch enclosure shall be weatherproof and carry a UL 4x/NEMA 4 rating when used with proper electrical fittings and conduit. The cover shall incorporate tamperresistant screws. The unit shall be listed by Underwriters Laboratories, Inc. and Underwriters Laboratories of Canada, Inc. and approved by Factory Mutual.
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