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Flow For the measurement of small flowMA-900 Series Micro Flowmeter

For the measurement of small flow MA-900 Series Micro Flowmeter

MA-900 Series PDF

*Specifications are subject to change without prior notice.

MA-900 is a metal tube variable area flowmeter designed for the measurement of small flow of liquids and gases. MA-900 covers tough applications with high pressure and temperature which are not suitable for glass tube purgemeters. In addition to local indication version, an alarm output option is available.


  • · Very small flow rate can be covered

    Min. 0 - 0.5 L/h [Water] can be measured.

  • · Alarm output option available

    In addition to local indication type, alarm output version is also available.

  • · Compact design

    Easy installation onto instrument panel

  • · Safety for high temperature and pressure

    All metallic material construction covers tough applications!

Short Specifications

Model and function MA-90X: Local indication only
MA-95X: Local indication + Alarm output
Measuring fluid Liquids, Gases (Not suitable for slurries and steam)
Measuring range For liquids (Water)
 Max. 60 to 600L/h
 Min. 0.1 to 0.5L/h

For gases (Air, 0°C 1,0MPa)
 Max. 2.2 to 22m³/h(nor)
 Min. 3 to 15L/h(nor)
Fluid viscosity
Size 3/8: 
Max. 1.0 mPa·s
Size 1/2: 
Max. 2.0 mPa·s
Size 3/4, 1: 
Max. 5.0 mPa·s
Fluid presure Max. 2.94 MPa (Option: Max. 19.6 MPa for high pressure)
Fluid temperature Max. 100°C (Option: Max. 250°C)
Max. 85°C with alarm
In case of Glass tube insert type, allowable thermal shock is 80°C
Available material SUS 316 or SCS14 (Options Hastelloy, Titanium etc.)
Process connection Rc Thread 1/4, 3/8, 1/2, 3/4 and 1
10A, 15A, 20A, 25A JIS 10 K FF Flange
(OptionF NPT Thread , ANSI and DIN Flanges)
Idication accuracy 3% F.S. (5% F.S. for tapered glass tube insertion version)
Range ability 10 : 1 [10 : 2 for full scale of less than 3 L/h (water) or less than 100 L/h (nor) (air)]
Alarm point 1 point (Low or High), Open collector output
Setting accuracy: ±3.0%F.S.