Pressure Control Technology


OEM-EP – Miniature Pressure Controller
Measuring just 26mm x 27mm x 60mm, the OEM-EP (Electronic Pressure Control Unit) is the smallest electronic pressure controller available on the market, configured specifically for the analytical instrumentation and life science OEM markets. The OEM-EP can be configured to control pressure or flow and can replace manual regulators, flow controllers, and needle valves, providing integral closed loop proportional control for sensitive instrumentation applications. This product uses Parker’s patented VSO® proportional valve, as well as the proven circuitry of its successful larger products.
Features: Performance Characteristics
Pressure Ranges:
0-2 psig 0-15 psig
0-50 psig 0-100 psig
Pressure Accuracy:
+ 0.2% FS typical*
+ 1.5% FS max
Response:
<15 msec (Response time to target pressure is output volume dependent)
Linearity:
< +1.5% FS
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VSO-EP – Miniature Pressure Controller
The VSO-EP Electronic Pressure Control Unit converts a variable electrical control signal into a variable pneumatic output. Used to control critical pressure, the VSO-EP replaces manual regulators, needle valves, flow controllers, and bleed orifices, providing integral closed loop proportional control. This product uses Pneutronics’ patented VSO® proportional valve and offers significant improvements over dual valve controllers. VSO-EP is used for carrier gas flow control, micro fluidic flow control, vacuum pump control, and for aspirate/dispense applications.
Features: Performance Characteristics:
Pressure Ranges:
0-7 psig
0-15 psig
0-30 psig
0-50 psig
0-100 psig
Pressure Accuracy:
+ 0.2% FS typical*
+ 1.5% FS max
Response:
<15 msec (Response time to target pressure is output volume dependent)
Linearity:
< +1.5% FS
VSO-EV – Vacuum Control Module
The VSO-EV™ is a pressure controller specifically configured and optimized for vacuum pressure control. The VSO-EV converts a variable electrical control signal into a closed-loop, tightly regulated pneumatic output. Often used for aspirating liquid samples, as well as for pipetting and dispensing nano-liter volumes, the VSO-EV offers users an internal sensor to close the control loop around critical system parameters. This EVC is well suited for high precision automated laboratory instruments, meeting the most stringent separation and detection requirements.

Features: Performance Characteristics
Vacuum Ranges:
0-150 mBar
0-345 mBar
Custom units available
Pressure Accuracy:
+ 0.2% FS typical*
+ 1.5% FS max
Response:
<15 msec (Response time to target pressure is output volume dependent)
Linearity:
< +1.0% FS
VSO-HP – High Performance Pressure Controller
Used in analytical and OEM instrument applications, the VSO-HP delivers integral closed loop proportional control with the highest level of accuracy and stability. With an extra internal dump valve, the VSO-HP offers rapid depressurization, which results in a fast response time and has an optional external sensor for expertly controlling pressure in required applications. The VSO-HP can be configured to control pressure or flow, replacing manual regulators, flow controllers, and needle valves. This product uses Parker’s patented VSO® proportional valve and offers precise motion control with Parker pneumatic cylinders, such as the Series SRX.

Typical applications include: Features: Performance Characteristics
Pressure Ranges:
0-5 psig
0-7 psig
0-15 psig
0-100 psig
Pressure Accuracy:
+ 0.2% FS typical*
+ 1.5% FS max
Response:
<15 msec (Response time to target pressure is output volume dependent)
Linearity:
< +1.5% FS
VSO-LP – Long Performance Pressure Controller
The VSO-LP series provides single channel "I to P" control for industrial applications requiring long life and high accuracy. This voltage sensitive module promotes consistent, accurate flow while offering rapid depressur¬ization. It incorporates an onboard sensing transducer and a VSO® patented proportional valve, plus a long life digital valve.
Features: Performance Characteristics:
Pressure Ranges:
0-15 psig 0-100 psig
Pressure Accuracy:
+ 1.5% FS max
Response:
<15 msec (Response time to target pressure is output volume dependent)
Linearity:
< +1.5% FS
VSO-BT – Benchtop Controller
The VSO-BT Electronic Benchtop pressure controller combines the closed loop performance features of OEM-grade electronic pressure controllers into a form factor suitable for laboratory and prototype development work. Used in microfluidic and life science research, this unit replaces manual regula¬tors, sensors, gauges, and tubing assemblies while providing considerably better pressure accuracy and eliminating pressure drift and fluctuation.

Typical applications include: Features: Performance Characteristics
Pneumatic
Includes 2 pcs of Parker Presto- Loc quick disconnect fittings for ¼" urethane tubing
Recommended Pressure Source:
120% rated pressure
Accessories (not included) :
Burst proof air-over-liquid piloting chamber