MTS Model 286-31 Transient Permeability Pore Pressure Intensifier - Manual (Page 71)

Running a Transient Permeability Flow Test
286.31 Transient Permeability Pore Pressure Intensifier Operation 71
4. Prepare to pressurize Reference Volume 2.
Turn the Permeability Fluid Input 1, Permeability Fluid Input 2, and
Transducer Input 2 valves to the Open position.
5. Pressurize Reference Volume 2.
On the RSC, slowly turn the Manual Control to develop the Reference
Volume 2 pressure you want.