ADCS-601-AF™ OPERATION AND MAINTENANCE MANUAL
© 2005 - 2007 DH Instruments, a Fluke Company
Page 76
LABEL
DESCRIPTION
Ambient Temperature
Current value of ambient temperature read by the active pressure
standard. Value is from the PG7601 on-board temperature sensor
when the PG7601 is active; the FPG8601 mounting post sensor
when the FPG8601 is active.
Right click on the value to produces a pop up menu in which the
unit of measure can be changed, the resolution of the pressure
value can be adjusted and a strip chart of the value over time can
be displayed. Changing the
<Ambient Temperature>
unit of
measure changes all
ADCS Tools
temperature displays.
Head Correction
Enter the difference in height between the reference level of the
ADCS-601-AF system and the device under test, in centimeters
[cm] (see Section 4.2.6). The value is positive if the DUT is above
the ADCS reference level, negative if it is below.
PG Pressure
(=> when active standard)
Displays the current pressure and unit of measure or the status of
the PG7601 pressure standard. The circular indicator is a
Ready/Not Ready
indicator (see Section 4.1.1).
The pressure value shown is valid ONLY when the PG7601’s
piston is floating and the pressure is
Ready
.
FPG Pressure
(=> when active standard)
Displays the current pressure and unit of meaure or the status of
the FPG8601 pressure standard. The circular indicator is a
Ready/Not Ready
indicator (see Section 4.1.1).
Upper Limit
The maximum allowable target pressure for the ADCS-601-AF.
This limit is imposed for all test and manually entered target
pressures.
Change the limit by entering a new maximum pressure value in the
current ADCS-601-AF unit of measure. The mimimum allowable
entry value is 110 kPa (32.5 inHg). The maximum allowable entry
value cannot exceed 384 kPa (113.4 inHg).
The PG7601 pressure controller Upper Limit setting is forced to
110% of the
<Upper Limit>
entry. Review the PPC3 Operation
and Maintenance Manual for details on the Upper Limit setting of a
PPC3.
Since the PG7601 can only set a target pressure within
approximately 1 kPa (0.3 inHg) of the requested target, it is
possible for an ADCS-601-AF pressure to exceed the
<Upper
Limit>
entry by approximately 1 kPa (0.3 inHg).
4.3.5.2
ADCS SYSTEM DISPLAY
The
ADCS System Display
is a simplified operational schematic of the
ADCS-601-AF system that provides the operator with real time, quick visual
indication of ADCS-601-AF system states (see Figure 37). The schematic
represents the FPG8601 and PG7601 pressure standards, their pressure
controllers and the measured pressure and reference pressure circuits with
valves.
Table 16 summarizes the symbols used in the
ADCS System Display
.
Содержание ADCS-601-AF
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