MTS Model 286-31 Transient Permeability Pore Pressure Intensifier - Manual (Page 73)

Running a Transient Permeability Flow Test
286.31 Transient Permeability Pore Pressure Intensifier Operation 73
7. Separate Reference Volume 2 from Reference Volume 1.
Turn the Permeability Input, Transducer Pressure Balance, and
Permeability Fluid Input 2 valves to the Close position.
You are now applying pressure to the 286.31's differential pressure
transducer.
8. Monitor the pressure differential transducer’s pressure signal.
The 286.31's pressure differential transducer will be damaged if the
difference in pressure between Reference Volumes 1 and 2 exceeds the
transducer's operating limit.
CAUTION