GC6 Series - Helium Mass Flow Controller - Stainless Steel, High Flow, With or Without LCD Readout, 1/2 Inch Compression Fittings, 0-5VDC Analog Input/Output

Compact and self-contained, Dakota's Mass Flow controllers are designed to indicate and control flow rates of gases. GC mass flow controllers combine the characteristics and accuracy of conventional mass flow devices at low costs previously unattainable. Available in flow ranges from 10 mL/min to 1000L/min relative to Nitrogen, each model is calibrated on-site with numerous gas selections, including gas mixtures offered. For gases and gas mixtures not shown consult with Dakota. Accuracy +/-1% full scale for models up to 100 Liters per minute.

Each controller incorporates an advanced straight tube sensor in conjunction with flow passage elements constructed of aluminum and brass for non-corrosive gases or 316 stainless steel for corrosive applications. The mechanical layout of the design includes an optional LCD readout built into the top of the transducer. This readout module is tiltable over 90 degrees to provide optimal reading comfort. It is connected to the transducer by a standard modular plug, and is readily removable for remote reading installations. Readout option of either engineering units (standard) or 0 to 100 percent displays are available.

The built-in electromagnetic valve allows the flow to be set to any desired flow rate within the range of a particular model. Set points can be controlled either locally through a potentiometer or remotely by analog signals of 0-5VDC or 4-20mA.

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  • Rigid metallic construction
  • Maximum pressure of 500 psig (34.5 bars).
  • Leak Integrity 1 x 10-9 of helium.
  • NIST traceable certification.
  • Built-in tiltable LCD readout.
  • 0-5Vdc and 4-20mA signals.
  • Circuit protection
  • Engineering units or 0 to 100% displays.
  • Totalizer option.
Specifications: GC Series Analog Mass Flow Controllers
Accuracy: GC1, GC3 and GC4 models (up to 100 standard liters per minute): +/-1.0% of full scale
GC5, GC6 AND GC7 models (up to 1000 standard liters per minute): +/-1.5% of full scale at 20-100% flow range. +/-3% of full scale at 0-20% flow range.
Optional Enhanced Accuracy: +/-1.0% of full scale
Peformed at standard conditions [14.7psia (101.4kPa) and 70°F (21.1°C)] unless otherwise requested.
Repeatability: +/-0.25% of full scale
Response Time: Generally 2 seconds to within +/-2% of actual flow rate over 25 to 100% of full scale
Temperature Coefficient:
0.15% of full scale/°C
Pressure Coefficient:
0.01% of full scale/ psi (0.07 bar)
Optimum Gas Pressure:
25 psig (1.73 bars)
Maximum Gas Pressure:
1000 psig (70 bars) maximum for models up to 100 standard liters per minute (GC1, GC3 and GC4)
500 psig (34.5 bars) maximum for models up to 1000 standard liters per minute (GC5, GC6 and GC7)
Turn Down Ratio:
Maximum Differential Pressure:
50 psi for GC1, GC3, GC5, GC6 and GC7 (3.4 bars). 40 psi for GC4 (2.7bars).
Gas and Ambient Temperature:
32°F to 122°F (0°C to 50°C). 14°F to 122°F (-10°C to 50°C) - Dry gases only
Materials In Fluid Contact:
a. Aluminum models: anodized aluminum, 316 stainless steel, brass and Viton® O-rings.
b. Stanless steel models: 316 stainless steel and Viton® O-rings
***Optional O-rings available: Buna®, EPR and Kalrez®
Attitude Sensitivity:
No greater than +15 degree rotation from horizontal to vertical; standard calibration is in horizontal position.
Output Signals:
Linear 0-5Vdc. 1000 Ohms min. load impedance and 4-20mA 0-500 Ohms loop resistance. Max noise +/-20mV
Command Signals:
Analog 0-5Vdc or 4-20mA for remote set point mode; NPN compatible purge/valve off.
GC1: 1/4" compression fittings. Optional: 6mm, 3/8" and 1/8" compression fittings or 1/4" VCR®.
GC3: 1/4" compression fittings. Optional: 6mm, 3/8" compression fittings or 1/4" VCR®.
GC4: 3/8" compression fittings.
GC5: 3/8" compression fittings.
GC6: 1/2" compression fittings.
GC7: 3/4" FNPT fittings or 3/4" compression fittings.
Leak Integrity:
1 x 10-9 smL/sec of helium maximum to the outside environment.
Transducer Input Power:
GC1, GC3, GC4: Universal +12Vdc to 26Vdc, 200 mA maximum.
GC5, GC6 and GC7: +12Vdc, 800mA; +24Vdc, 650mA optional.
Circuit Protection:
Circuit boards have built-in polarity reversal protection. Resettable fuses provide power input protection.
3-1/2 digit LCD, 0.5" high characters.
CE Compliant:
EN 55011 class 1, class B; EN50082-1
Usually Ships in 2 to 3 Weeks
Item #Item DescriptionItem PriceSubtotalQty
6AGC6SL55-60HAStainless Steel - With LCD Readout, 1/2 Inch Compression Fittings, 0-5VDC Input/0-5VDC Output, 0-500 L/MIN Helium $2,310.00 $0.00
6AGC6SN55-60HAStainless Steel - No LCD Readout, 1/2 Inch Compression Fittings, 0-5VDC Input/0-5VDC Output, 0-500 L/MIN Helium $2,226.00 $0.00

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Usually Ships in 2 to 3 Weeks

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