Mass Flowmeters- Series MF
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°
| 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) |
| 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 SPECIFICATION
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____.