The TPI 615 single-input digital manometer has a + or - 80 inH2O (inches of water) measuring range and a + or - 0.5% full scale accuracy for measuring pressure and vacuum of dry, non-corrosive air and gas. The instrument displays measurements in inH2O, kPs, PSI, inHg, mmHg, mmH2O, and mbar. The LCD displays measurements in inches of water, and has a backlight LCD for reading in a variety of lighting conditions. The one-touch zero feature provides field calibration. The autoranging feature provides high resolution and accuracy at low pressures, and the trim mode smoothing function averages the previous four measurements to stabilize erratic readings. The manometer records Min/Max to perform pressure circuit leak testing. The display hold feature freezes the display for reading when the display is not visible during testing. The manometer automatically shuts off after 20 minutes to extend battery life. A built-in hanging hook and back-mounted magnet provides hands-free use.
|Pressure types||Single-input pressure and vacuum|
|Media compatibility||Dry, non-corrosive gases|
|Pressure range||-80 to +80 inches of H2O|
|Accuracy||+ or - 0.5% of full scale|
|Engineering units||kPs, PSI, inHg, mmHg, inH2O, mmH2O, and mbar|
|Pressure limits||+ or - 200 inches of water|
|Case material||Dissipative polycarbonate case with rubber boot|
|Operating temperature||0 to 40 degrees C|
|Power requirements||9V alkaline|
Manometers 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.
Test Products International (TPI) manufactures test and measurement equipment such as oscilloscopes, manometers, multimeters, and test leads. The company, founded in 1997, is headquartered in Beaverton, OR.
What's in the Box?
- TPI 615 manometer
- Silicone tubing
- Soft carrying pouch
- 9V battery