Dwyer Magnehelic 2000 Series Low Differential Pressure Gauge

Dwyer Magnehelic 4" dial differential pressure gauges are ideal for both portable and stationary applications, measuring fan, blower, and fluid system pressures, filter resistance, air velocity, furnace draft, pressure drop across orifice plates, and liquid levels with bubblers.

Using simple, frictionless Magnehelic movement, the gauge quickly indicates low air or non-corrosive gas pressures: positive, negative, or differential. The design resists shock, vibration, and overpressure, and has no manometer fluid to evaporate, freeze, or cause toxic or leveling problems. Make adjustments without removing the cover with the conventient zero adjustment screw.

• For low air or gas positive, negative, or differential pressure
• Rated pressures: -20" Hg to 15 PSIG total on either side of diaphragm
• Accuracy: ±2% to ±4% full scale, depending on model; high accuracy option (-HA) to ±1% full scale available
• 1/8" NPT high and low pressure taps (one pair on side, one on back)
• Available in inches water column, PSI, centimeters or millimeters water column, Pascals and kiloPascals

Model Selection Guide

Use this table to find the right model for your application. If the range or engineering unit you need isn't listed here, call Lesman at 800-953-7626. 

Magnehelic gauges are also available in high accuracy and low temperature models. Call for pricing and availability.

Note:

• [1] Calibrated for vertical scale position