Handheld Doppler Flow Meter

Features :

  • non-invasive device utilizing the frequency shift (doppler effect) of a signal to measure the flow velocities of liquids.
  • flow range : 0.3 to 6 m/sec, 0.5 to 20 ft. / sec.
  • analog output : 4 to 20 mA DC or RS 232

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Industry's Lowest Cost Ultrasonic Flowmeter

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Specifications :

Model

HFM-1

HFM-2

HFM-3

HFM-4

Flow Range

0.3 to 6m/sec. - 0.5 to 20 ft. / sec.

0.5 to 20 ft. / sec and GPM

Power

5VDC supplied by internal nickel- cadmium batteries

5VDC supplied by internal nickel-cadium batteries and /or battery charger/power supply

5 VDC supplied by internal nickel cadmium batteries

Transducer

Dual crystal hinged for ease of alignment

Operating temperature

Electronics -25 to 85 deg. C, Transducer -40 to 150 deg. C

Size

7.5" long x 4.25" wide x 2" deep

Weight

1.8Kg

Chargers

220V AC charger included

Case

Padded nylon case holds flowmeter, transducer, internnecting cables, couplant & charger

Analog output

N/A

4 to 20mA. DC

4-20mA. DC*RS232

N/A

Readout

12.5mm LCD display with low battery indicator

16 character dot matrix display

12.5mm LCD display with low battery indicator

Accuracy

Digital readout : +/- 2.0 LS,

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Repeatability : +/- 0.2% (FS range)

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Linearity : +/- 0.5% (FS range)

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Resolution : 0.1 m/sec.

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Excellent Technology Co.
Hong Kong: Tel. (852) 2691 3821    Fax. (852) 2900 2980
Email: LabSupplyhk@Gmail.com

China: Tel. (86) 150 1799 2655   Fax. (86) 755 3360 9662
Email: etchk.China@Gmail.com