Portable: Portable manometer test equipment indicates pressure. Applications include filter monitoring, laboratories, fan status, duct static pressure, and field calibration of other instruments. Dwyer's manometers are precision instruments in inclined and vertical styles. Most versatile and useful low cost manometers we know of.

Air Velocity: Air Velocity instruments are portable manometers which indicate pressure and air velocity. Dwyer's air velocity models are accurate instruments designed for measurement of low differential pressures in laboratory and test applications. Ideal for measurement of low range gas and air pressures, positive, negative or differential.

Questions

Question

What is the advantage of using a manometer rather than a Magnehelic® gage?

Answer

Dwyer Instruments manufactures many different types and styles of manometers with various accuracies and prices for different applications as well as the Magnehelic® gage. For example, some of the many manometers we manufacture are Hook Gage Manometers with ±0.001 inches water column accuracy; Microtector® Portable Electronic Point Gage to ±0.00025 inches water column accuracy; Handheld Digital Manometers with ±0.5 inches water column accuracy; very inexpensive Mark II Molded Plastic Air Filter Gages at ±3% inches water column accuracy. The key point is that we offer many manometers and the selection depends on your specification, application, convenience needs and pocketbook. Some of the key factors to consider that affect manometer performance and usage are: Characteristics of Indicating Fluid, Readability and Leveling. You should read "Measurement of Pressure with the Manometer" in our catalog to fully understand the importance of these factors and their effect on your reading wit

Related

Series 250-AF

Series 420

Series 2000

Series Mark II

Series 1230/1235

Question

Why doesn't 1 inch on the scale of a 1223-12-D manometer equal 1 inch on a ruler?

Answer

The calibration scale on the manometer has been compensated for the specific gravity of red gage fluid which is less than water.

Related

Series 1221/1222/1223

Question

Since water will not mix with oil, why can't a D-style manometer be used to measure water pressures?

Answer

The weight of the water itself is also being measured which results in erroneous readings.

Related

Series 1221/1222/1223

Question

What are the principle advantages of red gage fluid over water for use in manometers?

Answer

Red gage fluid is slow to evaporate, won't freeze, is more readable and produces slightly expanded scales for better reading resolution.

Related

Series 420

Series 100 AV

Series 1227

Series 100

Series 1221/1222/1223

Question

Will the water manometers freeze?

Answer

Yes, if the temperature drops below 32 degrees Fahrenheit, the fluid in the manometer will freeze. The fluid used in "W/M" style manometers is water-based with a small amount of fluorescent green fluid to enhance the meniscus. The other gage fluids have a lower freezing point, however, it is recommended that the manometers be stored above 32 degrees Fahrenheit.

Related

Series 1227

Series 1230/1235

Series 1221/1222/1223

Videos

Series 477AV Handheld Digital Manometer