Masterflex Gas Mass Flowmeter Controller with Digital LCD; 0 to 5 LPM, N2/Air

Representative image only.
Masterflex Item # EW-32708-28
Integrated valve allows precise flow control
  • Accepts a 0 to 5 VDC input signal for remote valve control
  • Calibrated for air and nitrogen
  • Maximum flow rate of 5 LPM


$1,348.50USD / Each

$272.00USD / Each

for an additional
$272.00USD / Each
Time to recalibrate? Click on the calibration service to view details, then order.


Specifications & Description

  • Accuracy±1.5% full-scale
  • Repeatability±0.5% full-scale
  • Max Pressure (PSI)150
  • Min Flow Rate (LPM)0
  • Max Flow Rate (LPM)5
  • Material FittingAcetal
  • Material O-RingViton
  • Material HousingAnodized Aluminum
  • Wetted MaterialsAnodized Aluminum, 316 Stainless Steel, Viton, Acetal
  • Min Operating Temperature (° F)50
  • Min Operating Temperature (° C)10
  • Max Operating Temperature (° F)122
  • Max Operating Temperature (° C)50
  • Process Connection1/4" Compression
  • Pressure Drop At Maximum Flow (PSID)15
  • Leak Integrity1 X 10-4 sccs He (max)
  • Media TypeAir;Nitrogen
  • Gas TypeAir, Nitrogen
  • Max Particulate Size (microns)20
  • Response Time (msec)2000
  • OutputLinear 0 to 5 VDC (2500 Ω minimum load)
  • Display Type3.5-digit LCD
  • CertifiedYes
  • DescriptionGas Mass Flow Controller w/ Display, 0 to 5 LPM, N2/Air


Two acetal compression fittings and a 24" cable with hub connector.

Key Features

  • Accepts a 0 to 5 VDC input signal for remote valve control
  • Calibrated for air and nitrogen
  • Maximum flow rate of 5 LPM

More About this Item

These low-cost mass flowmeter controllers use a thermal gas flow sensing technique that results in highly accurate readings and repeatability. The controllers accept a 0 to 5 VDC input signal for remote valve control. Controllers with LCD display feature a potentiometer for manual valve control. The 3 1/2"-digit display tilts up to 90° for easy viewing. Front panel dip switch lets you select one of the factory programmed gases: air or nitrogen.
All controllers require a combined power supply/input/output cable. This cable combines three functions into one unit: power source, plus input or output of 0 to 5 VDC signals. Use the input signal for remote valve control; use the output signal for datalogging or controlling other instruments. Order the power supply/input/output cable separately.
Wetted materials are anodized aluminum, 316 stainless steel, brass, Viton®, and acetal. Maximum pressure drop across the unit is 15 psi at maximum flow. Differential pressure should not exceed 45 psi.
These precalibrated flowmeters operate at inlet pressures between 5 and 40 psi and at gas temperatures between 64 and 77°F (18 to 25°C) while maintaining the stated ±1.5% full scale accuracy and linearity. When operating beyond 5 to 40 psi, add ±0.02%/psi full scale; if operating beyond 64 to 77°F (18 to 25°C), add ±0.15%/°C full scale.





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