24 Volt or Battery Powered, Built-in Audible and Visual Alarm
Adjustable Differential Pressure Alarm. Designed for overpressure, vacuum, and differential pressure applciations.
Features
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Adjustment knob changes switching pressure easily with a pressure gage reducing components for application
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Low cost device makes it an excellent solution in BAS and HVAC applications requiring duct control and monitoring
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Relay contact allows simple integration with DDC or building systems
Product Applications
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Air filter and ventilator monitoring
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Industrial cooling circuits
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Fire-protection damper control
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Ventilation duct monitoring
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Fan heater overheating protection
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Heat exchanger frost protection
Specifications
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Service: Air and noncombustible, compatible gases.
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Wetted Materials: Diaphragm: Silicone; Housing: Switch Body: PA 6.6 and POM; Cover: Polystyrene.
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Temperature Limits: Process and ambient temperature from -4 to 185°F (-20 to 85°C).
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Pressure Limits: Max. operating pressure: 40" w.c. (10 kPa) for all pressure ranges.
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Electrical Rating: 1.0 A @ 30 VDC/VAC.
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Switch Type: SPDT.
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Alarm Indication: Red LED and audible alarm.
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Alarm Level: Approximately 90 db at 4" (10 cm).
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Alarm Acknowledge: Button press.
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Power Requirements: 16 to 30 VDC, 18 to 30 VAC or 3.6 V LS14250 lithium metal battery, installed functional, user replaceable. Battery acts as back-up if power is lost.
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Battery Life: Approximately 1.5 years with 3.6 V/1.2 Ah.
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Repeatability: ±15% FS.
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Electrical Connections: Screw terminals. M20x1.5 with cable strain relief or optional 1/2" NPT connection.
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Process Connections: 5/16" (7.94 mm) outside diameter tubing, 1/4" (6.0 mm) inside diameter tubing.
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Mounting Orientation: Vertically, with pressure connections pointing downwards.
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Enclosure Rating: IP21.
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Weight: 6.1 oz (173 g).
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Agency Approvals: CE, RoHS.
