Ultra-stable Flow Control for Analytical Instruments
With our vast knowledge on the specific requirements of Electronic Pressure Control and Electronic Flow Control in GC applications we can help Gas Chromatograph manufacturers in building better products in a relatively short amount of time. This means you can get your products to market quicker, have unsurpassed analytical grade flow control and still keep product cost in check.
Our policy is to deliver exactly what the Instrument Manufacturer needs. We build quality and our knowhow into every derivative of our EPC Reference Design. By re-using the core EPC building blocks we can provide products that physically fit the application and have the required flow configuration in a relative short amount of time and with predictable results.
Features and benefits
2 independent channels
Each channel can individually be setup for flow or pressure control
Factory calibrated for multiple gasses
Simple interfacing using RS485
Ultra small footprint of 26 x 78 mm
Controlled using “real” values such as mL/min or kPa
Unique Design
The design of the D2EPC-2 is very flexible. By using a small and versatile manifold, without built-in restrictors, virtually every EPC configuration can be created using the same hardware.
This is how we do this:
- Input and output restrictions are housed in screw-on tube fittings
- Flow control range is configured by using different restrictions in screw-on tube fittings
- Pressure control range is configured by using pressure sensors with appropriate range
- Manifold is identical regardless of flow or pressure channel choice
- Flow direction can be reversed because of symmetrical manifold
- Various tubing connection standards can be used due to screw-on fitting design
Reference Design
The D2EPC-2 is intended as reference design. This means that for large quantity production, special versions can be derived, using the same core technology. Physical size, communication protocols, number of channels may all be adjusted to your exact requirements. We are glad to discuss how we can fulfill your special requirements based on our core technology.
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General Specifications
Control type
- Flow Control by differential pressure
- Pressure Control
- Back Pressure Control
Channels
2
Gases
Dry, non corrosive
Input Pressure
up to 1000 kPag
Operating Temperature
5...60°C
Setpoint Control (RS485)
Static Set Point (ballistic)
Programmable Ramp to Set Point
Pneumatic Connections
Swagelok®1/8", Valco® 1/16" on special request
custom reducing ferrule from
Reducing back-ferrule
1/8" to 1/16" Stainless Steel metal to metal Seal
Extra Data Signal 1
Ambient Pressure
70 - 125 kPaa (700 - 1250 hPa)
accuracy <0.25 %fs
Extra Data Signal 2
Manifold Temperature
accuracy <1°C, resolution 0.001 °C
Input filter
SST filter on all inputs
Communciation
RS485 at 115.2 kBd (NextGC Protocol)
Power Supply
23-25V DC, 24V DC nominal
Power Consumption
Max 250mA (6W) @ 24V
Dimensions
78 x 110 mm (without pneumatic connections)
Mounting Pitch
26 mm
Valve Drive
PWM - Spread Spectrum for low EMI
Manifold Material
Aluminum
Wetterd Materials
See list
Wetted Materials
Manifold
Aluminum
O-rings
Fluoroelastomer (FPM/FKM/Viton®)
Valve
Fluoroelastomer (FPM/FKM/Viton®), Brass, Nickel, Stainless Steel
+31 118 488 499
info@moduvision.com