Gas Mass Flow Controller/Meter

Description:

Dwyer Series GFC/GFM Gas Mass Flow Controller/Meter

Flow Range up to 1000 l/min, Pressures up to 500 psi, NIST Traceable

Dwyer Series GFC/GFM Gas Mass Flow Controllers/Meters combine a straight tube sensor with a restrictor flow element to provide high accuracy and repeatability. Flow rates are virtually unaffected by temperature and pressure variations. Actual gas flow is displayed in engineering units on a 3-1/2 digit, 90° tiltable LCD readout. Units can be used with Series GFT Flow Totalizer for applications requiring totalization. Series GFC/GFM includes a NIST traceable certificate. Gas mass flow controllers utilize an electromagnetic valve and PID electronics to maintain continuous control by comparing measured sensor signal set to flow rates. Setpoints can be adjusted with local potentiometers or remotely via 0 to 5 VDC or 4 to 20 mA analog signal.


Gas Mass Flow Controller - GFC	Gas Mass Flow Meters - GFM

SPECIFICATIONS

Service: Clean gases compatible with wetted parts.
Wetted Materials: GFC/GFM-1XXX: Anodized Aluminum, Brass, 316 SS and Viton® O-rings; GFC/GFM-2XXX: 316 SS and Viton® O-rings.
Accuracy: ±1.5% FS including linearity over 59 to 77°F (5 to 25°C) and 5 to 60 psia (0.35 to 4 bar).
Repeatability: ±0.5% of full scale.
Response Time: 2 seconds to within ±2% of actual flow.
Output: Linear 0-5 VDC and 4-20 mA.
Max. Particulate Size: 5 microns.
Temperature Limits: 32 to 122°F (0 to 50°C).
Power Supply: ±12 VDC.
Process Connections: 1/4" compression fitting for flow rates ≤50 L/m; 3/8" for 100 and 200 L/m; 1/2" for 500 L/min; 3/4" for 1000 L/min.
Pressure Limits: 500 psig (34.5 bar).
Leak Integrity: 1 x 10^-7 sccs of Helium.
Display: 90° tiltable, 3-1/2 digit.
Agency Approvals: CE. ACCESSORIES For Series GFC Gas Mass Flow Controllers
GFC-110P - 110V Power Supply
GFC-220PE - 220V Power Supply
GFC-CBL1 - 8 ft cable with 15-pin connector
GFC-CBL3 - 3 ft extension cable for LCD readout
IO-1 - 0-5 VDC to RS232 Input to Output Signal Conditioner

For Series GFM Gas Mass Flowmeters
GFM-110P - 110V Power Supply
GFM-220PE - 220V Power Supply
GFM-CBL4 - 8 ft cable for 4-20 mA output
GFC-CBL5 - 3 ft cable for 0-5 VDC output
IO-1 - 0-5 VDC to RS232 Input to Output Signal Conditioner

Available Models:

Series GFC/GFM Gas Mass Flow Controller - Aluminum

Series GFC/GFM Gas Mass Flow Controller - SS

Model Number	Flow Range¹
GFC-1101	0-10 sccm
GFC-1102	0-20 sccm
GFC-1103	0-50 sccm
GFC-1104	0-100 sccm
GFC-1105	0-200 sccm
GFC-1106	0-500 sccm
GFC-1107	0-1 l/min
GFC-1108	0-2 l/min
GFC-1109	0-5 l/min
GFC-1111	0-15 l/min
GFC-1131	0-30 l/min
GFC-1133	0-50 l/min
GFC-1142	0-100 l/min
GFC-1143	0-200 l/min
GFC-1144	0-500 l/min
GFC-1145	0-1000 l/min

Model Number	Flow Range¹
GFC-2101	0-10 sccm
GFC-2102	0-20 sccm
GFC-2103	0-50 sccm
GFC-2104	0-100 sccm
GFC-2105	0-200 sccm
GFC-2106	0-500 sccm
GFC-2107	0-1 l/min
GFC-2108	0-2 l/min
GFC-2109	0-5 l/min
GFC-2111	0-15 l/min
GFC-2131	0-30 l/min
GFC-2133	0-50 l/min
GFC-2142	0-100 l/min
GFC-2143	0-200 l/min
GFC-2144	0-500 l/min
GFC-2145	0-1000 l/min

Series GFC/GFM Gas Mass Flow Meter - Aluminum

Series GFC/GFM Gas Mass Flow Meter - SS

Model Number	Flow Range¹
GFM-1101	0-10 sccm
GFM-1102	0-20 sccm
GFM-1103	0-50 sccm
GFM-1104	0-100 sccm
GFM-1105	0-200 sccm
GFM-1106	0-500 sccm
GFM-1107	0-1 l/min
GFM-1108	0-2 l/min
GFM-1109	0-5 l/min
GFM-1111	0-15 l/min
GFM-1131	0-30 l/min
GFM-1133	0-50 l/min
GFM-1142	0-100 l/min
GFM-1143	0-200 l/min
GFM-1144	0-500 l/min
GFM-1145	0-1000 l/min

Model Number	Flow Range¹
GFM-2101	0-10 sccm
GFM-2102	0-20 sccm
GFM-2103	0-50 sccm
GFM-2104	0-100 sccm
GFM-2105	0-200 sccm
GFM-2106	0-500 sccm
GFM-2107	0-1 l/min
GFM-2108	0-2 l/min
GFM-2109	0-5 l/min
GFM-2111	0-15 l/min
GFM-2131	0-30 l/min
GFM-2133	0-50 l/min
GFM-2142	0-100 l/min
GFM-2143	0-200 l/min
GFM-2144	0-500 l/min
GFM-2145	0-1000 l/min

¹Specified ranges are for an equivalent flow of nitrogen at 70°F (21°C) @ 760 mm Hg.