Dwyer Instruments 2300-0 Pressure Gage

The Dwyer 2300-0 Magnehelic Differential Pressure Gage is a standard-setting instrument for monitoring low-pressure differentials in commercial HVAC and industrial filtration systems. Featuring a zero-center range of .25-0-.25 inches of water column (w.c.), this analog gage is engineered for applications requiring precise measurement of both positive and negative pressures relative to a set point. Its diaphragm-actuated design utilizes a frictionless Magnehelic movement, ensuring high sensitivity and resistance to shock or vibration, which is critical for maintaining calibration in mechanical rooms. The 4-inch dial face provides clear legibility for differential pressure monitoring, while the 1/8" female NPT process connections and versatile mounting options allow for seamless surface or flush mounting into control panels.

Key Technical Benefits

• High Accuracy: Guaranteed within 2% of the full scale across the entire operating range, ensuring reliable readings for cleanroom and laboratory environments.
• Zero Center Versatility: The .25-0-.25" w.c. scale allows technicians to monitor pressure swings across filters or between adjacent zones without re-zeroing the needle.
• Industrial Durability: Constructed with a die-cast aluminum housing, this gage handles air and non-combustible gases with a maximum pressure rating of 15 psig.
• Minimal Maintenance: The magnetic linkage eliminates mechanical wear found in traditional gear-driven gages, reducing the need for frequent recalibration.
• Simplified Installation: Standard 1/8" NPT connections on both the side and back accommodate various piping configurations in tight spaces.

Common Technical Questions

Can the Dwyer 2300-0 be used in outdoor applications?
While the housing is rugged, we recommend using a weather shield or NEMA-rated enclosure if installing the gage in locations exposed to direct precipitation or extreme temperature fluctuations to prevent condensation or damage to the diaphragm.

How do I calibrate the zero point on this Magnehelic gage?
Calibration is performed via the zero adjustment screw located at the bottom of the faceplate. Ensure the high and low-pressure ports are vented to the atmosphere before adjusting the needle to the center mark.

Is this gage compatible with corrosive gas streams?
The standard 2000 series is designed for use with air and non-combustible, non-corrosive gases. For specialized chemical or process gas applications, specific diaphragm materials must be utilized to prevent component failure.

Disclaimer: While we strive for 100% accuracy, product data and specifications are subject to change. Please contact our team to confirm compatibility or technical details before purchasing.