Bronkhorst

MASS-VIEW® MV-304

Mass Flow Regulator for gases with 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
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MASS-VIEW®MV-304

Gas Mass Flow Regulators with integrated display

MASS-VIEW® model MV-304 Mass Flow Regulators (MFRs) are suited for precise measurement of flow ranges between 0,04…2 ln/min and 0,2…20 ln/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 offers smooth and fine adjustment of the gas flow.

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 / control system
Flow range (intermediate ranges available)min. 0,04…2 ln/min
max. 0,2…20 ln/min
(based on N2)
Accuracy (incl. linearity) (based on actual calibration)± 2% Rd for flow > 50% of max. capacity;
± (1% Rd + 0,5% FS) on lower flows
Repeatability< 0,2 % FS typical
Turndown ratioup to 1 : 100
Operating pressure0 … 10 bar(g) / 0 … 150 psi(g)
Pressure coefficient± 0,2% Rd/bar typical at Air
Pre-installed gasesAir, Ar, N2, O2, CO2, CH4, C3H8, N2O, CO and C4H10
Standard calibration gasAir, other gases are converted using our Fluidat® conversion model which will introduce extra inaccuracy
Response time (sensor)0,9 sec.
Operating temperature0 … 50 °C (32 … 122°F)
Temperature coefficientZero: <0,1% FS/°C, Span: <0,2% Rd/°C
Leak integrity, outboardtested < 2 x 10-9 mbar l/s He
Attitude sensitivity< 0,1 % FS
Mechanical parts
Material (wetted parts)Meter: Aluminium;
Needle valve: SS316
Test pressure21 bar(a) / 300 psi(a)
Process connectionsG 1/4” BSPP female thread
(compression fittings optional)
SealsViton®, PTFE
Weight0,7 kg
Ingress protectionIP40
Electrical properties
Power supply+15 … 24 Vdc (+/- 10%)
Max. power consumptionapprox. 135 mA
Analog output0 … 5 Vdc
Digital communicationRS232 / RS485 (Modbus RTU/ASCII)
Min. and max. relay contactsswitching current 0,5 A, 24 Vdc,
one side grounded (0 Vdc power)
Electrical connection8-pin RJ-45 modular jack
Electrical connection
Control valve options
External actuator options to be connected to the controller
Ex-proof specifications
Approvals / certificates

Technical specifications subject to change without notice.

For dimensional drawings and hook-up diagrams please visit the product page on our website

Downloads

Brochures
MASS-VIEW Brochure

Manuals
Manual MASS-VIEW
Quick installation guide

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

Dimensional drawing
Dimensional drawing MV-1XX and MV-3XX


BRONKHORST (UK) Ltd

1 Kings Court
Willie Snaith Road
Newmarket Suffolk CB8 7TG
Tel. +44 1223 833222
[email protected]

      
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