Dwyer

HM28 Handheld Digital Manometer

Measures a wide range of pressures to a very high accuracy and features a display resolution to 0.001 and adjustable auto power off

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The Seroes HM28 Digital and Handheld Manometer 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.

• Measures differential, gage, or absolute pressure
• Able to record up to 964 readings, which can be downloaded to a PC
• Up to 0.05% accuracy
 

ServiceAir 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 Materials18/8 stainless steel
Temperature Limits23°F - 122°F (-5°C - 50°C)
Storage Temperature-4°F - 140°F (-20°C - 60°C)
Humidity30% - 95% RH, Non-condensing
Display2 line, 16 character, dot matrix LCD, with switchable display sizes
Power Requirements9 V alkaline battery, installed functional, user replaceable. Can operate from external power supply of 7 VDC - 14 VDC
Current Consumption< 9 mA
Memory964 measured values. Recording intervals adjustable from manual, 1, 5, 10, 20, 30 s, 1, 2, 3, 5, 10, 30, 60 min
Case ProtectionIP54 (NEMA 3)
Case Dimensions6 in x 3.27 in x 1.34 in (152 mm x 83 mm x 34 mm)
Weight9.5 oz (270 g)
Pressure ConnectionHose; 4/6 mm or 1/8 in NPT
Maximum Measurement RatesStand alone: 2-1/2 readings/s (0.1% and 0.05% ratings), 5 readings/s (0.2% rating).
Output to RS-232: 20 measurements/s (0.2% rating). 10 measurements/s (0.1% and 0.05% ratings)
RS-232 Baud RateAdjustable, 1200, 2400, 4800, or 9600 baud
Agency ApprovalsCE

• Calibration facilities
• Laboratories
 

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