MASS-VIEW® model MV-301 Mass Flow Regulators (MFRs) are suited for precise measurement of flow ranges between 10…50 mln/min and 10…200 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 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.
Thông số kỹ thuật
| Measurement system |
| 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, N2, O2, CO |
| Standard calibration gas |
Air, other gases are converted using our Fluidat® conversion model which will introduce extra inaccuracy |
| Turndown |
up to 1 : 20 |
| 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. |
| Leak integrity |
tested < 2 x 10-9 mbar l/s He |
| Attitude sensitivity |
< 0,1% FS |