Designed to take accurate measurements of humidity and temperature from the most difficult to reach places is the DP-110 in-duct digital psychrometer. The 6-inch flex neck allows technicians to position the sensor in ducts or plenums. The psychrometer can measure temperature, percent rh, and wet bulb/dry bulb.
For HVACR field service, the PRH2 is a psychrometer that measures wet bulb, percent rh, dew point, and dry bulb temperatures, in the convenience of a pocket tool. With the capability to clip into a pocket, the psychrometer can be used for walk-around testing.
Combination hot-wire anemometer and psychrometer accessory head AAT3 gets into ducts easily. It can be used for measurement of air velocity, temperatures, and percent rh. It also calculates wet bulb and dew point. When connected to the HG3 HVAC Guide, it provides data for automatic calculations of target superheat and more.
With the 38-inch telescoping probe, a line of in-duct HVACR instruments — two psychrometers (SRH3 and ARH5) and a hot-wire anemometer (STA2) — makes it easier for techs to take temperature, percent rh, or air velocity readings in the duct. The standalone STA2 uses a hot wire for measuring air velocity.
This past December marked the 100th anniversary of the Rational Psychrometric Formulae, the cornerstone of all fundamental calculations in the air conditioning industry, developed by inventor Willis Carrier, Ph.D., founder of Carrier.
Today marks the 100th anniversary of the Rational Psychrometric Formulae, the cornerstone of all fundamental calculations in the air conditioning industry, developed by inventor Dr. Willis Carrier, founder of Carrier, part of UTC Climate, Controls & Security Systems, a unit of United Technologies Corp.