ADCS-601™ OPERATION AND MAINTENANCE MANUAL
© 2005 DH Instruments, Inc. Page 54
- Set a target pressure of 10 kPa (3 inHg). The ADCS-601 will transition from the
PG7601 to the FPG8601 standard. The FPG8601 pressure controller should descend
pressure and set a stable pressure near the target pressure value and indicate Ready.
- Set a target pressure of 1 kPa (0.2 inHg). The FPG8601 pressure controller should
descend pressure and set a stable pressure near the target pressure and indicate
Ready. Note: It may take up to 3.5 to 4 minutes to obtain a ready condition for
descending increments at very low absolute pressure.
Run an FPG validation in absolute mode (see Section 7.2.3).
3.5 ENTER VALUE OF LOCAL GRAVITY
To correctly calculate the pressure defined by its PG7601 and FPG8601 pressure standards,
local value of acceleration due to gravity must be known and entered into ADCS Tools.
To enter the local value of acceleration due to gravity into ADCS Tools, press
[Maintenance] on the main menu and select [Calibration]. Edit the value of local gravity to
enter gravity at the site of use of the ADCS-601 System (see
Figure 28).
See the PG7000 and FPG8601 Operation and Maintenance Manuals for additional
information on how acceleration due to gravity is used in the calculation of defined pressure.
Figure 28. Local gravity and pressure medium fields in ADCS Tools
To Next Page
Loading...