Thermal mass flow controller MV-402

for gasdigitalprecision

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 Features Clear indication in: - actual flow rate (bar graph and value) - desired flow units - type of gas - totalised flow Bright, wide-angle OLED display Free of parallax error Virtually independent of temperature and pressure variations Low pressure drop Wide flow ranges Fast response High accuracy Configurable password protection Alarm and counter functions Relays Multi Gas / Multi Range 10 Pre-installed gases Membrane operated valve High resolution needle valve Digitally calibrated Free software tools Technical specifications Accuracy ± 2% RD for flow > 50% of max. capacity ± (1% RD + 0.5% FS) on lower flows Technical specifications are based on Air at maximum FS Repeatability < 0.2% FS typical Temperature rating 0 … 50 (32 … 122°F) Operating pressure 0 … 10 bar(g) / 0 … 150 psi(g) Pressure coefficient ± 0,2% Rd/bar typical at Air Standard calibration gas Air, other gases are converted using our Fluidat® conversion model which will introduce extra inaccuracy Rangeability up to 1:100 Response time (sensor) (t63%) 2 seconds Temperature coefficient Zero: <0.1%FS/°C, Span: <0.2%RD/°C Leak integrity, outboard tested < 2 x 10-9 mbar l/s Attitude sensitivity < 0,1 % FS Mechanical parts Material (wetted parts) Meter: aluminium, Viton (FPM) Needle Valve: Fluorosint, Brass, Buna N Controller: membrane Fiber-reinforced nitrile Test pressure 21 bar(a) / 300 psi(a) Min. ΔP 1 bar(d) Max. ΔP 7 bar (d) Process connections G 1/4" BSPP female