
Revision: JUNE 2017
38
5.6 Storing the HPFM
Pressurize the CAT to 140-280 kPa (20-40 PSI), shut the air valve (AV) to retain the pressure. Turn the water valve right
(WV) to the “flow” position and close the outlet valve on the 8-way outlet valve (8WO). This will prevent entry of air
into your system, keep a minimum pressure on connecting hoses, and your HPFM will remain in optimum form, ready
for measurements, whenever you need it. Be sure to turn off the power to the HPFM A/D board and to the pressure
gauge to save battery power. Also be sure to shut off the gas supply to the pressure regulator. This will prevent gas
loss from your supply tank in case of a slow leak.
CAUTION!
It is recommended that you keep the HPFM pressurized at 140-280 kPa (20 - 40
PSI) with the outlet valve closed at all times when the HPFM is not in use.
a. Open the Water Supply Valve to the “flow” position (Photo 7.)
b. Make sure that you still have pressure by checking the pressure gage.
c. Open the flow inlet valve. Close the outlet valve.
d. Open at least PAIR OF VALVES, e.g. gray range values to equalize pressure between PT1 and PT2.
e. Keeping the system under pressure will prevent entry of unwanted air!
Photo 7
Water Supply Valve
Summary of Contents for HPFM3
Page 49: ...Revision JUNE 2017 49 b Click on the STATIC OFFSET set the new value to zero and SAVE ...
Page 73: ...Revision JUNE 2017 73 Red Range ...
Page 74: ...Revision JUNE 2017 74 Yellow Range ...
Page 75: ...Revision JUNE 2017 75 Grey Range ...
Page 76: ...Revision JUNE 2017 76 Brown Range ...
Page 77: ...Revision JUNE 2017 77 Zero Adjustment Measurement ...