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Hydrogen Mass Flow Controller GC1 Series
Brand: Dakota Instruments, IncCompact 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
Features- Rigid metallic construction
- Maximum pressure of 1000 psig (70 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.
1 - 12 of 20 Part Numbers
6AGC1AL55-01HD
6AGC1AL55-02HD
6AGC1AL55-03HD
6AGC1AL55-04HD
6AGC1AL55-05HD
6AGC1AL55-06HD
6AGC1AL55-07HD
6AGC1AL55-08HD
6AGC1AL55-09HD
6AGC1AL55-10HD
6AGC1AN55-01HD
6AGC1AN55-02HD
1 - 12 of 20 Part Numbers
Specifications
Brand
Accuracy
- (up to 100 standard liters per minute): ± 1.0 % of full scale
Calibrations
- Peformed at standard conditions [14.7 psia (101.4kPa) and 70° F (21.1° C)] unless otherwise requested.
Repeatability
- ± 0.5 % of full scale
Response Time
- 300 ms time constant, approximately 1 second to within ± 2 % of set flow rate for 25 % to 100 % of full scale flow
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) Max. for models up to 100 standard liters per minute
Turn Down Ratio
- 40:1
Maximum Differential Pressure
- 50 psi
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
Attitude Sensitivity
- No greater than +15 degree rotation from horizontal to vertical, standard calibration is in horizontal position.
Output Signals
- Linear 0-5 Vdc. 1000 Ohms min. load impedance and 4-20 mA 0-500 Ohms loop resistance. Max. noise ± 20 mV
Command Signals
- Analog 0-5 Vdc or 4-20 mA for remote set point mode, NPN compatible purge/valve off.
Connections
- 1/4” compression fittings. Optional: 6 mm, 3/8” and 1/8” compression fittings or 1/4” VCR®.
Leak Integrity
- 1 x 10-9 smL/sec of helium Max. to the outside environment.
Transducer Input Power
- Universal +12 Vdc to 26 Vdc, 200 mA Max..
Circuit Protection
- Circuit boards have built-in polarity reversal protection. Resettable fuses provide power input protection.
Display
- 3-1/2 digit LCD, 0.5” high characters.
CE Compliant
- EN 55011 class 1, class B, EN 50082-1