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GDS STDDPC V2
 
What is it?
 

The GDS Standard Pressure/Volume Controller (STDDPC) is a general-purpose water pressure source and volume change gauge. It is designed for use in commercial and teaching soil mechanics laboratories. A stepping motor and screw-drive actuate a piston which directly pressurises water. The pressure is regulated under closed-loop control. The change in volume is measured to 1cu mm (0.001cc) by counting the steps to the stepping motor.

 
Standard pressure and volume controller
  Download full specification datasheet as pdf [83kb]
 
  Download controller comparison helpsheet pdf [239kb]
 
What are its uses
 

The STDDPC, typically operating at 3MPa/200cc, provides a cost-effective direct replacement for conventional soil mechanics laboratory pressure sources and volume change gauges. Above all, the device has its own computer interface and so can be controlled directly from a computer. It is ideal as a back pressure source where it can also measure the change in volume of the test specimen. Also, it automatically protects itself from pressure and volume over-ranges.

In stand-alone mode, the instrument is a constant pressure source which can replace traditional laboratory pressure sources such as mercury column, compressed air, pumped oil and dead weight devices. It is also a volume change gauge resolving to 1 cu mm.

Recently upgraded to a version 2 unit, advantages over the version 1 standard controller include;

• USB connectivity,
• Faster Fill / Empty and pressure seek speeds,
• Lighter and with a smaller footprint.

 

 
 
 
 
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