



Dwyer Instruments GFM-1109 | Gas mass flow meter | Range 0-5 LPM. Specified flow Range is for an equivalent flow of nitrogen at 70°F (21°C) @ 760 mm Hg | 1/4" compression fitting
A restrictor flow element and a straight tube sensor are combined in the Model GFM-1109 Gas Mass Flow Meter to offer excellent accuracy and repeatability. Temperature and pressure changes almost never have an impact on flow rates. Measured gas flow is shown on a 3-1/2 digit, 90° tiltable LCD readout in engineering units. When totalization is needed, units can be utilized with the Series GFT Flow Totalizer. comes with a traceable NIST certificate.

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- Specifications
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Accuracy | +/-1% FS including linearity over 59 to 77°F (5 to 25°C) and 5 to 60 psia (0.34 to 4 bar) Series X143, X144, X145, +/-1.5% FS |
Approvals | CE |
Connection | Process: 1/4" compression fitting for flow rates ¢°¤50 L/m |
Display | 90° tiltable, 3-1/2 digit |
Leak Integrity | 1 x 10-9 sccs of Helium. |
Manufacturer | Dwyer Instruments |
Material | Wetted: GFM-1XXX: anodized aluminum, brass, 316 SS and fluoroelastomer o-rings; GFM-2XXX: 316 SS and fluoroelastomer o-rings |
Maximum Operating Pressure | 1000 psig (68.9 bar) Series GFM-X143, X144, X145, 500 psig (34.5 bar) |
Maximum operating temperature | 32 to 122°F (0 to 50°C) |
Maximum Particulate Size | 5 microns |
Output | Linear 0-5 VDC and 4-20 mA |
Power Supply | +/-12 VDC |
Range | 0-5 LPM. |
Repeatability | +/-0.25% of FS |
Response Time | 2 seconds to within +/-2% of actual flow |
Type | Gas Mass Flow Meter |
- Appropriate for a large variety of gases, including as argon, nitrogen, oxygen, and air, as well as other non-corrosive gases.
- LED or LCD monitors are optional for simple flow rate reading.
- Accuracy is maintained via built-in temperature and pressure adjustment.
- Built with premium components, including stainless steel, for sturdiness and gas compatibility.
- High and low flow alarm settings that are optional for process control and security.
- Flexible mounting options to satisfy diverse installation requirements.
- Intended to maintain system efficiency by reducing pressure drop across the meter.
- Interface designed to be easily used for monitoring, calibration, and setup.
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