Housing is molded from strong mineral and glass-filled nylon
Pointer stops of molded rubber prevent pointer over-travel without damage
Full view lens is removable and molded of tough acrylic
Aluminum scale litho-printed black on white enhances readability
Red tipped aluminum pointer, rigidly mounted to helix is easy to see
Wishbone assembly provides mounting for helix, helix bearings, and pointer shaft
Jewel bearings provide virtually friction-free helix motion
Helix is free to rotate in jewel bearings. It aligns with magnetic field of magnet to transmit pressure indications to pointer
Zero adjustment screw, located behind the removable lens, eliminates tampering
Range spring calibration clamp fixes live length of spring for proper gauge calibration and is factory set and sealed
Silicone rubber diaphragm allows accurate response to a broad range of temperatures and at extremely low pressure. Incorporates blow out area for overpressure protection
Diaphragm support plates of lightweight aluminum on each side of the diaphragm minimize position or attitude sensitivity and help define pressure area
Flat-leaf range spring reacts to pressure on the diaphragm. Live length is adjustable for calibration. Small amplitude of motion minimizes inaccuracies and assures long life
Low-pressure tap connects to rear chamber
Coil spring link provides a resilient connection between the diaphragm and the range spring
Ceramic magnet mounted on a moulded bracket at the end of the range spring rotates the helix without direct mechanical linkage
High-pressure tap connects with the front chamber through a passageway in the plastic case and a sealing ring moulded into the edge of the diaphragm
Applications
Room Positive Pressure Sensing
Local Indication on Filter Status
Face Velocity on Fume Hood
Duct Pressures
Specifications:
Dimensions: 2-29/32" (73.82 mm) x 2-7/16" (61.93 mm)
Service: Air and compatible gases
Housing: Glass-filled nylon polycarbonate lens
Accuracy: ±5% of FS at 70°F (21.1°C)
Pressure Limits: 30 psig (2.067 bar) continuous to either pressure connection
Temperature Limits: 20 to 120°F (-6.67 to 48.9°C)
Mounting Orientation: Diaphragm in vertical position
Process Connections: Barbed, for 3⁄16" ID tubing (standard)
Weight: 6 oz (170.1 g)
Agency Approvals: Meets the technical requirements of EU Directive 2011/65/EU (RoHS II)
