Mass Flow Regulator for gases with pressure compensation and integrated display

  • Direct thermal mass flow measurement
  • High accuracy
  • 10 pre-installed gases
  • Bright, graphical OLED display
  • Digital or analog output; alarm and counter functions
  • High precision needle valve with pressure compensation
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Gas Mass Flow Regulators with pressure compensation and integrated display

MASS-VIEW® model MV-402 Mass Flow Regulators (MFRs) are suited for precise measurement and control of flow ranges between 20…200 mln/min and 20…2000 mln/min at operating pressures up to 10 bar(g). The MFR has an integrated graphical OLED display, clearly visible at wide angles, which allows reading of actual flow (value and a bar graph), total flow and type of gas. A high quality needle valve with integrated pressure compensation offers smooth and fine adjustment of the gas flow, even at varying upstream pressures.

The display features easy set up via a user-friendly menu, using a 4-way navigation push button. The pre-installed gases eliminate the need to recalibrate for different gases and therefore reduce the cost of ownership. Additional features & functions include a variety of alarm and counter functions, an analog output signal, digital interfaces and two relay contacts.

The MASS-VIEW® series provides modern, novel and economical alternative to variable area meters (VA meters), also known as purge meters. Unlike conventional VA meters these new flow meters measure mass flow instead of volume flow.

Technical specifications

Measurement system
Flow range, based on N2
(intermediate ranges available)
min. 20…200 mln/min
max. 20…2000 mln/min
Accuracy ± 2% Rd for flow > 50% of max. capacity;
± (1% Rd + 0,5% FS) on lower flows
Repeatability < 0,2% FS typical
Pre-installed gases Air, Ar, N2, O2, CO2, CH4, C3H8, N2O, CO and C4H10 
Standard calibration gas Air, other gases are converted using our Fluidat® conversion model which will introduce extra inaccuracy
Media Non-hazardous gases; Helium excepted
Turndown up to 1 : 100
Operating pressure 0 ... 10 bar(g) / 0 ... 150 psi(g)
Pressure coefficient ± 0,2% Rd/bar typical at Air
Operating temperature 0 ... 50°C (32 ... 122°F)
Temperature coefficient Zero: <0,1% FS/°C, Span: <0,2% Rd/°C
Response time sensor (t63%) 0,3 sec.
Attitude sensitivity < 0,1% FS
Mechanical parts
Material (wetted parts) Meter: Aluminium;
Needle valve: SS316, Brass
Test pressure 21 bar(a) / 300 psi(a)
Min. ΔP 1 bar(d)
Max. ΔP 7 bar(d)
Control accuracy < 0,5-1% Rd/bar
Process connections G 1/4” BSPP female thread
(compression fittings optional)
Seals Viton®, PTFE, Fluorosint®, Buna N;
Controller membrane: fiber-reinforced nitrile
Weight 1,4 kg
Ingress protection IP40
Electrical specifications
Power supply +15…24 Vdc (+/- 10%)
Power consumption approx.135 mA
Min. and max. relay contacts switching current 0,5 A, 24 Vdc,
one side grounded (0 Vdc power)
Analog output 0...5 Vdc
Digital communication RS232 / RS485 (Modbus RTU/ASCII)
Electrical connection 8-pin RJ-45 modular jack

- Technical specifications subject to change without notice.

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MASS-VIEW Brochure

Quick installation guide

Hook-up diagrams
Hook-up diagrams
Modbus-RTU ASCII, RS-232 interface

Dimensional drawing
Dimensional drawing MV-4XX

Bronkhorst NEDERLAND

Lunet 10c
3905 NW Veenendaal
Tel. +31 (0)318 55 12 80
[email protected]

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