Dwyer Instruments 2000-00N Pressure Gage

The Dwyer 2000-00N Magnehelic Differential Pressure Gage is the industry standard for monitoring fan and blower pressure, filter resistance, and furnace draft in precise HVACR environments. This zero-center gage features a .05-0-.2" w.c. range, making it indispensable for measuring both positive and negative pressures in cleanroom monitoring and low-pressure air systems. Engineered with a large 4" diameter dial face, it provides high-visibility readings without the need for manometer fluids or battery power. The die-cast aluminum case is designed to withstand overpressure up to 15 psig, ensuring durability in demanding mechanical rooms. Contractors benefit from the versatile dual 1/8" NPT process connections, allowing for easy side or back porting. Whether you are performing air velocity pressure measurements or managing building automation system (BAS) calibration, the 2000-00N ensures repeatable accuracy within 2% of full scale, specifically for non-combustible gases and air applications.

Key Benefits

• Zero-Center Scale: Specifically designed for differential pressure sensing where fluctuating positive and negative pressures occur.
• Frictionless Movement: Utilizes Dwyer’s magnetic linkage to eliminate gear wear and provide instantaneous response to pressure changes.
• Versatile Mounting: Compatible with both flange and flush mounting configurations for standard 4-3/4" cutouts.
• Low Maintenance: Mechanical design operates without electricity or hazardous fluids, reducing long-term service requirements.

Common Questions

Can the Dwyer 2000-00N be used with liquid media?
No, this gage is strictly designed for air and non-combustible gases. Using liquids will damage the internal diaphragm and bellows assembly.

How do I calibrate the zero point on this Magnehelic gage?
With both ports vented to the atmosphere, use the zero-adjustment screw at the bottom of the faceplate to align the needle with the center zero mark.

Does this unit include the required mounting hardware?
Yes, the 2000-00N typically ships with two 1/8" NPT plugs for the unused pressure ports, pipe thread-to-tubing adapters, and mounting bolts.

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.