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HM28: Handheld Digital Manometer

HM28: Handheld Digital Manometer

High Accuracy (0.2%, 0.1% or 0.05%), Differential, Gage or Absolute

THE SERIES HM28 DIGITAL HAND-HELD MANOMETERM is a precision instrument designed to measure a wide range of pressures to a very high accuracy. The unit incorporates a variety of features in an easy to use format that makes it useful in a wide variety of applications. Features include: measurement in all common pressure ranges, display resolution to 0.001, differential or relative measurement, two line liquid crystal display, and adjustable auto power off to conserve battery. We are so proud of the accuracy of the HM28 that we provide a certificate of calibration with the unit at no additional cost. Depending on your application, the HM28 can be used as a secondary calibration standard for your other pressure instrumentation.


Service:Air and compatible gases.
Accuracy:(Includes linearity, hysteresis, and repeatability): per order code. ±0.20% full scale ±1 digit. ±0.10% full scale ±1 digit. ±0.05% full scale ±1 digit.
Wetted Materials:18/8 stainless steel.
Temperature Limits:23 to 122°F (-5 to 50°C).
Storage Temperature:-4 to 140°F (-20 to 60°C).
Humidity:30 to 95% rH, non-condensing.Display:2 line, 16 character, dot matrix LCD, with switchable display sizes.
Power Requirements:9 V alkaline battery, installed functional, user replaceable. Can operate from external power supply of 7 to 14 VDC.
Current Consumption:Memory:964 measured values. Recording intervals adjustable from manual, 1, 5, 10, 20, 30 seconds, 1, 2, 3, 5, 10, 30, 60 minutes.
Case Protection:IP54 (NEMA 3).
Case Dimensions:6" x 3.27" x 1.34" in (152 x 83 x 34 mm).Weight:9.5 oz (270 g).Pressure Connection:Hose; 4/6 mm or 1/8" NPT.Maximum
Measurement Rates:Stand alone: 2-1/2 readings/sec (0.1% and 0.05% ratings), 5 readings/sec (0.2% rating).
Output to RS-232: 20 measurements/sec (0.2% rating). 10 measurements/sec (0.1% and 0.05% ratings).
RS-232 Baud Rate:Adjustable, 1200, 2400, 4800, or 9600 baud.
Agency Approvals:CE.

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Product : HM28
Series/Model Quantity Description
HM28: Handheld Digital Manometer