Fluke PG9000 Series, Руководство по эксплуатации и обслуживанию

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3. GENERAL OPERATION
Page 35 © 2011 Fluke Calibration
Note
Some screens go beyond the two lines provided by the display. This is indicated
by a flashing downward arrow in the second line of the display. Press [
←
] and [
→
]
to move the cursor to access the lines that are NOT visible, or directly enter the
number of the hidden menu choice if you know it.
3.3 Sounds
The PG Terminal is equipped with a variable frequency tone device to provide audible feedback
and alarms. Some sounds can be modified and all sounds can be suppressed (see Section 3.12.4.2).
Sounds are used for the following indications:
Valid key press Brief high frequency beep.
Invalid key press Three rapid, low frequency beeps.
Piston left end of stroke high
or low
Three rapid valid key press beeps. Piston was at low stop or high stop and
just entered spring zone (see Section 3.5).
3.4 Pressure Ready/Not Ready Indication
The three characters on the top line, far left, of the main run screen provide a pressure Ready/Not Ready
indication. This indication is intended to give the user a clear and objective indication of when PG9000
conditions are such that the value of pressure it is defining is valid and in tolerance. A user should look
for two asterisk symbols (look for three if operating in Absolute by Vacuum mode) as the Ready Indication
before logging a measurement. It is important to remember the displayed pressure value is a calculation
that is only valid if all Ready Criteria are met.
There are three Ready/Not Ready indication characters to indicate the status of the three main Ready/Not
Ready criteria. The Ready/Not Ready indication characters are shown on the first line, top left hand side, of the
main run screen.
1. Piston position and vertical movement.
2. Piston rotation.
3. Reference vacuum (PG9000 in absolute by
vacuum measurement mode only).
* * * 100.4755 kPa g h
+ 0.1 mm 10.00564 kg
For each Ready/Not Ready indication character, <*> indicates a Ready condition. Therefore, <***> or <** >
indicates that all conditions necessary for an in tolerance pressure definition are present. Any indication
other than
<*> indicates Not Ready .
See the following sections (3.4.1, 3.4.2 and 3.4.3) for details on each of the three Ready/Not Ready indicating
characters.
Note
The criteria used to distinguish between Ready and Not Ready conditions can be
customized by the user (see Sections 3.4.1, 3.4.2, 3.4.3).