A3310 | Pressure switch/gage | range 5-0-5" w.c. | Dwyer Instruments

Dwyer Instruments NCO-A3310 Photohelic Gage: The Industrial Standard for Precision Pressure MeasurementThe Dwyer Instruments NCO-A3310 Photohelic Gage is the industry leader in precision pressure measurement, engineered specifically for industrial applications. Designed with a rugged and reliable construction, this gage withstands harsh environments, delivering accurate and consistent readings even under demanding conditions. Key Features and Benefits: • ±2% full-scale accuracy ensures reliable pressure readings • 0-5" water column (w.c.) range covers a wide range of pressure applications • Photohelic technology provides frictionless movement for precise and repeatable measurements • Compact design allows for easy installation in tight spaces • Durable construction ensures long-lasting performance in industrial settings Applications: The Dwyer Instruments NCO-A3310 Photohelic Gage finds applications in various industries, including: • HVAC systems: Measuring air pressure and airflow in ducts and plenums • Industrial processes: Monitoring pressure in pipelines, tanks, and vessels • Cleanroom environments: Verifying pressure differentials to maintain cleanliness • Medical equipment: Measuring pressure in respiratory systems Shop our HVAC supply store today for the best prices and fast shipping on the Dwyer Instruments NCO-A3310 Photohelic Gage, your trusted solution for precision pressure measurement in industrial settings.

Series A3000 Photohelic® Pressure Switch/Gage

• Bezel and front cover (with set point knobs and zero adjustment screw) removed to expose Photohelic® switch/gage set point mechanism. Cover is clear polycarbonate plastic.
• Gage pointer and light shutter are mounted on helix and balancing counterweight. Shutter passes through slot in optical limit switch to expose phototransistors to integral infrared light source or mask them depending on applied pressure.
• Light shield effectively protects phototransistors from strong outside light sources yet allows free pointer movement. It also gives interior a clean "finished" look.
• Optical limit switches are used for reliability and long service life. Attached directly to set pointers, they are individually aligned to assure precise switching accuracy.
• Semi-Flexible drive shaft connects to set point knobs.
• Zero adjustment screw connects to screw in cover to adjust zero pressure reading.
• Plastic enclosure protects electronic components and electrical connections.
• Polycarbonate connection or terminal board is self-extinguishing.
• Glass epoxy printed circuit boards for durability and permanence.
• Load relays are DPDT with latching feature for maximum application versatility.
• Electronics are designed to operate on 50/60 Hz, 120 volt current with 10% over or under voltage. Special units for other voltages are available.
• Switch set pointers show switch settings at all times.
• Spring loaded friction clutch prevents operator damage of set point mechanism.
• 3-in-1 instrument allows the reduction of several instruments with one product, saving inventory, installation time and money.
• Patented design and 1% full scale dead band provides quick response to pressure changes means no delay in switching and chatter-free operation.
• A wide range of models that can meet pressure measurement specifications from low to very high.