MTS Model 286-31 Transient Permeability Pore Pressure Intensifier - Manual (Page 62)

286.31 Transient Permeability Pore Pressure Intensifier 62
Running a Transient Permeability Flow Test
Operation
11. Purge the Pressure Intensifier of air and fill it with fluid.
On the RSC, slowly turn the Manual Control clockwise, then
counterclockwise to fully stroke the Intensifier’s piston.
Watch the displacement signal to make sure you fully stroke the piston.
When the bubbling at the Fluid Reservoir stops, use the Manual Control to
fully retract the Intensifier’s piston.
12. On the test controller, monitor the pressure sensor output.
13. Prepare to pressurize the fluid in the 286.31. Turn the Intensifier Fill valve
to the Close position.
14. Pressurize the fluid in the 286.31 by extending the Intensifier’s piston.
On the RSC, slowly turn the Manual Control to develop a positive
pressure.
As you purge the pore pressure lines, keep the pressure low but positive all
the time. Keep an eye on the pressure as you purge the lines.