VSO®-GC Miniature Electronic Pressure Controllers
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Catalog excerpts

VSO®-GC Miniature Electronic Pressure Controllers - 1

Miniature Electronic Pressure Controllers Typical Applications The VSO®-GC Miniature Electronic Pressure Controller converts a variable electrical control signal into a variable pneumatic output. The internal integration of the VSO®-GC has been optimized for low flow applications and applications requiring minimal volume. Used to control critical pressures and flows, the VSO®-GC replaces manual regulators, needle valves, flow controllers, and vent orifices, providing integral closed loop proportional control. Using Parker Hannifin's patented VSO® proportional valve for precise control, the VSO®-GC is an ideal choice for carrier gas flow control, microfluidic flow control and for aspirate/dispense applications. Features • Offers silent operation to reduce system noise levels • Ensures high accuracy and unparalleled resolution for improved results • Tested for long life to improve system availability • Offers internal closed loop control to minimize system development time • OEM application-specific configurations available • Analog control for added design flexibility • Optimized for stability at low flows • RoHS compliant ^ Electronic Pressure Control Product Specifications Physical Properties Electrical Performance Characteristics Valve Technology: Thermally compensated VSO® proportional valves. Media: Non-corrosive gases Operating Environment: 32 to 131°F (0 to 55°C) Storage Temperature: -40 to 149°F (-40 to 65°C) Length: 1.27 in (32.3 mm) Width: 2.32 in (59.0 mm) Height: 2.20 in (55.8 mm) Weight: 5.6 oz (158.8 g) Porting: 10-32 female ports Metric adaptor available Main Voltage: 24 VDC + 10% Input Control Signal: 0-5 VDC standard Monitor Output Voltage: 0-5 VDC Maximum Current Requirement: < 400 mA Electrical Connection: RJ-45 Wetted Materials Manifold: AL 6061-T6, FKM, 302 Series SS Valve: FKM, 300 Series SS Brass 36000HT Tubing: Ester Based Polyurethane Sensor: Glass, Silicon, Silicone, Polyphenylene Sulfide Pressure Ranges: 0-2 psig (0-0.14 bar) (Effective control range is 10%-100% of full scale) Pressure Accuracy: + 1.5% Full Scale maximum Response: <15 ms (Response time to target pressure is output volume dependent) Linearity: < +1.5% Full Scale VSO is a registered trademark of Parker Hannifin Corporation.

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VSO®-GC Miniature Electronic Pressure Controllers - 2

Electronic Pressure Control How Flow Effects Pressure Control The flow curves illustrate the flow capabilities of the three models of pressure controllers. Pressure control using a constant flow approach requires the system to manage pressure drops across a variable orifice and a fixed orifice (see below). ^ I X ' VSO®-GC Flow Capability Sizing Charts Typical Flow vs Pressure @ 25°C Pressure (bar) 0 1 2 3 4 5 6 PRESSURE SENSOR 0 10 20 30 40 50 60 70 80 90 100Pressure (psi) Choosing the Right Model In many cases, the fixed orifice is the cumulative restriction of the application system...

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VSO®-GC Miniature Electronic Pressure Controllers - 3

Electronic Pressure Control VSO®-GC Miniature Electronic Pressure Controllers Mechanical Integration VSO-GC Basic Dimensions OUTLET PORT INLET PORT (1.270 [32.26]) J1 CONNECTOR ACCESS MOLEX CAT-5 #95040 INLET PORT OUTLET PORT Metric Adaptor (available option) Electrical Interface CAT 5e Plug-in (RJ-45) Connector (included) Signal Input Control Signal, 0-5 VDC Monitor Signal Output, 0-5 VDC System Ground CAT 5e to flying lead Plug-in Cable (included) POS 8 POS 1 12" [30

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VSO®-GC Miniature Electronic Pressure Controllers - 4

Electronic Pressure Control VSO®-GC Miniature Electronic Pressure Controllers The VSO®-GC is a dynamic pressure controller that uses proportional valve technology to supply an accurate and stable pressure source for a variety of application requirements. Installation of this device requires the completion of a few easy steps. They are as follows: • Ensure that the gas is non corrosive, clean and dry. • Connect the gas supply to the Inlet Port on the VSO®-GC. • Connect a line requiring the controlled pressure to the Outlet Port on the VSO®-GC. • Pneumatic ports are 10-32 UNF-2B Female....

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VSO®-GC Miniature Electronic Pressure Controllers - 5

Configurations Typical Gas Chromatograph Schematic Inline flow restrictor Delivery pressure NO Parker VSO-GC controlling column head pressure Injector (CHP) and, thus column flow rate Septum purge flow Split/Splitless solenoid valve (purge valve) Parker VSO-SF VSO-GC pressure regulator controlling split flow Integrated Inline flow restrictor Column flow Split flow Pressure Controller with No Internal Vent With No Internal Vent. An internal vent may not be required when the application consumes a high rate of gas or the gas is coming from a limited source and/or is flammable. Electronic...

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VSO®-GC Miniature Electronic Pressure Controllers - 6

VSO®-GC Miniature Electronic Pressure Controllers Part Number Part Number NOTE: In order to provide the best possible solution for your application, please provide the following requirements when contacting Applications Engineering: • Media, Inlet & Outlet Pressures • Minimum Required Flow Rate • System Supply Voltage • Media • Ambient Temperature Range Please click on the Order On-line button (or go to www.parker.com/precisionfluidics/vsogc) to configure your VSO-GC Miniature Electronic Pressure Controller. For more detailed information, visit us on the Web, or call and refer to...

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