Series MF	Mass Flowmeters Integral Display, Adjustable Zero and Span

The Series MF Thermal Mass Flowmeters serve a wide range of flow applications by directly measuring the molecular flow of gases. The mass flowmeter provides an accurate measurement of gas mass flow rate independent of changes in pressure or temperature. Models supply a linearly proportional 0-5 VDC output signal for recording or control purposes. The Series MF utilizes a straight, large diameter sensor tube that prevents clogging and can easily be removed for cleaning. The 3 ½ digit LCD display is tiltable over 180°

PHYSICAL DATA

Media:		Clean gases compatible with wetted parts. Install an in-line filter (Model No. F221) for use with gases containing particulate matter.
Transducer Input Power:		12 to 18 VDC; 15 VDC nominal ±10%
Accuracy:		±1.5% FS including linearity over 15 to 25°C and 5 to 60 psia
Repeatability:		±0.5% full scale
Temperature Coefficient:		0.15% FS per °C, or better
Pressure Coefficient:		0.02% FS per psi (0.07 kg/cm2), or better
Response Time:		2 seconds within 2% final flow
Max. Gas Pressure:		150 psig (10 kg/cm2)
Gas & Ambient Temperature:		32 to 122°F (0 to 50°C)
Leak Integrity:		1 x 10-4 SCCS of helium max. to outside environment
Output Signal:		Linear, 0 to 5 VDC
Wetted Parts:		Glass-filled Nylon® 315 SS, nickle plating, and Viton® O-rings
Inlet/Outlet Connection:		¼" NPT(F)
Shipping Weight:		3 lbs. (1.4 kg)

STOCKED MODELS

Model Number	Flow Range*
MF1100002 MF1100003 MF1100004	0 to 20 SCCM 0 to 50 SCCM 0 to 100 SCCM

*Specified flow ranges are for an equivalent flow of nitrogen at 70°F (21°C) @ 760 mm Hg.


SUGGESTED SPECIFICATIONS: Thermal mass flowmeter shall have 1.5% accuracy including linearity and ±0.5% repeatability. Unit shall have an adjustable zero and span and provide a 0-5 VDC output signal. Flowmeter shall be equipped with a digital display capable of tilting 180°. Mass flowmeter shall be Dwyer Model No. MF____.