OMEGA FMA6703 Multi Parameter Mass Flow Meter With Flow Totalizer (50 SCCM, ± 1 %, 1/4 in, Compression Fitting)

Weight: 2.2 lb

Accuracy: ± 1 %

Compliance: CE

Calibration: NIST 10-Point Certificate

Display Note: 128 x 64 graphic LCD with backlight (up to 8 lines of text). User selectable backlight saver.

Display Type: LCD

Accuracy Note: 0°C to 50°C and 5 to 100 psia (34.5 - 689.5 kPa): ± 1% of full scale (F.S.)

Output Detail: Linear 0-5 Vdc (3000 ohms min load impedance); Linear 0-10Vdc (6000 ohms min impedance); Linear 4-20 mA (500 ohms maximum loop resistance). Maximum noise 20mV peak to peak (for 0-5 Vdc output).

Output Signal: Current, Voltage

Repeatability: ± 0.15%

Response Time: 300 ms

Burst Pressure: 200 psi Maximum

Data Interface: RS485

Humidity Range: Up to 70%

Supply Voltage: Bipolar ± 15Vdc, Unipolar 12Vdc to 24Vdc

Electrical Output: 4 to 20 mA, 0 to 5 Vdc, 0 to 10 Vdc

Enclosure Ratings: Inst. Level II/Poll. Degree II (IEC 60664)

Materials, Wetted: 316 Stainless Steel, 416 Stainless Steel, FKM

Pressure Accuracy: ± 1 %

Supply Power Note: May be configured for three different options: Bipolar ± 15Vdc (± 200 mA maximum); Unipolar +12Vdc (300 mA maximum); Unipolar +24Vdc (250 mA maximum); Circuit boards have built-in polarity reversal protection. Resettable fuses provide power input protection

Circuit Protection: Reverse polarity, Current Limit, Resettable Fuse

Pressure Drop, Max: 0.04 psi

Response Time Note: 300ms time constant; approximately 1 second to within ± 2% of set flow rate for 25% to 100% of full scale flow.

Data Interface Note: The digital interface operates via RS485 (optional RS232 is available)

Media Compatibility: Air, Gases, Nitrogen, Oxygen

Altitude Sensitivity: Incremental deviation of up to 1% from stated accuracy, after re-zeroing

Pressure Coefficient: 0.01% FS/psi

Temperature Accuracy: ± 1 °C

Additional Features 1: 2 SPDT 1A Relay, Multi-parameter Display

Leak Rate Under Vacuum: less than 10^⁻9 cc He/s

Operating Pressure, Max: 100 psi

Operating Pressure, Min: 0 psi

Process Connection Size: 1/4 in

Process Connection Type: Compression Fitting

Temperature Coefficient: 0.15% FS/°C

Process Temperature, Max: 50 °C

Process Temperature, Min: 0 °C

Volumetric Flow Rate, Max: 50 SCCM

Volumetric Flow Rate, Min: 0.2 SCCM

Operating Temperature, Max: 50 °C

Operating Temperature, Min: -10 °C

Datasheet