DDM55 Dual Input Digital Differential Manometer with LCD Display, -55 to 55" H20 Measuring Range, 0.01" Resolution, Battery Operated
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- Portable differential manometer provides differential pressure measurements in low-pressure gas systems
- For use performing leak tests, setting delivery pressures, making regulator adjustments, and confirming pressure switch operation
- -55 to +55 inches H20 measuring range and + or - 0.3% full scale accuracy
- Units of measure include performing leak tests, setting delivery pressures, making regulator adjustments, and confirming pressure switch operation
- LCD with backlight and data hold provides access to measurements
The Supco DDM55 digital manometer performs differential pressure measurements in low-pressure gas systems, including performing leak tests, setting delivery pressures, making regulator adjustments, and confirming pressure switch operation. The instrument has a -55 to +55 inH20 measuring range, + or - 0.3% full scale accuracy, and includes eleven units of measure including performing leak tests, setting delivery pressures, making regulator adjustments, and confirming pressure switch operation. The LCD has a backlight for viewing in a variety of lighting, and a data hold function to retain the last reading for recording. The manometer is powered by one 9V battery (included) or external 9V DC power, and includes flexible tubing, 1/8" MPT x 1/8" barb access fitting, and a soft carrying case.
SpecificationsPressure typesDifferentialMedia compatibilityGasPressure range-55.0 to +55.0 inH20Accuracy+ or - 0.3% full scale accuracyResponse time0.5 seconds, typicalEngineering unitsInH20, ftH20, cmH20, psi, bar, mbar, kPa, inHg, mmHg, ozin2, Kgcm2Pressure limits10 psiDisplayDual LCDConnection1/8" MPT x 1/8" barbOperating temperature32 to 122 degrees F/0 to 50 degrees CPower requirements9V battery or external 9V DCManometers measure the pressure of a liquid or gas. They are used in laboratory, medical equipment, engineering, automotive, and heating, ventilation, and air-conditioning applications. Manometers measure any combination of gauge, absolute, or differential pressures. Gauge pressure is the amount of pressure in a system relative to the ambient pressure, absolute pressure is the amount of pressure in a system relative to an absolute vacuum, and differential pressure is the difference between two pressures. Analog manometers are composed of columns of liquid, and they use gravity and the liquid's density to calculate pressure. Because they have no moving parts, analog manometers do not require re-calibration. Digital manometers have pressure sensors that are connected to a system with a hose to provide a digital readout of the amount of pressure present in a system. They use microprocessors to calculate pressure, and they require periodic calibration to help ensure accuracy.
Supco manufactures test instruments and replacement parts for heating, ventilation, air conditioning, and refrigeration systems. The company, founded in 1945, is headquartered in Allenwood, NJ.
What's in the Box?
- Supco DDM55 differential manometer
- Flexible tubing
- 1/8" MPT x 1/8" barb access fitting
- 9V battery
- Soft carrying case
- Instructions