THE OSY2 IS USED TO MONITOR THE OPEN POSITION OF AN OUTSIDE SCREW AND YOKE TYPE GATE VALVE
OSY2 System Sensor Outside Screw And Yoke Valve Supervisory Switch
The OSY2 System Sensor model shall be model number OSY2(A) supervisory switch as manufactured by System Sensor. OSY2(A) shall be installed on each valve as designated on the drawings and/or as specified herein.
Switches shall be mounted so as not to interfere with the normal operation of the valve and shall be adjusted to operate within two revolutions of the valve control or when the stem has moved no more than one-fifth of the distance from its normal position.
The mechanism shall be contained in a weatherproof die-cast metal housing, which shall provide a side entrance for 1/2" conduit and incorporate the necessary facilities for attachment to the valve. A grounding provision is provided. The switch assembly shall include two switches each with a rated capacity of 10.0 A @ 125/250 VAC and 2.5 A @ 24 VDC.
The cover shall contain tamper-resistant screws for which a security wrench will be provided with each switch. OSY2(A) shall be Underwriters Laboratories listed for indoor or outdoor use. The OSY2(A) shall be Factory Mutual, CSFM, and MEA approved.