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PG9602™ OPERATION AND MAINTENANCE MANUAL
3.4.1
Piston Position Ready/Not Ready
The piston position Ready/Not Ready character indicates Ready or Not Ready based on the float
position of the piston (see Section 3.5) and an automated measure generation status (see Section
3.10.9). This ensures that pressure definitions will be made with the piston not more than a
certain distance from mid-float position and that measurements will not be made while the action
of an automated pressure controller is active which may influence the pressure. The default
ready range is -2.5 mm to +2.5 mm relative to the center float position of 0.0 mm.
The piston position Ready/Not Ready character is the first character from the left on the top
line of the main run screen.
The piston position Ready/Not Ready criterion is determined by the current SETUP file and
can be customized by the user (see Section 3.11).
Piston position Ready/Not Ready character indications include:
< * >
Piston position Ready (within the position limits specified in the current SETUP file)
(see Section 3.5).
<↓>
Piston position Not Ready, low (below the position limits specified in the current
SETUP file, see Section 3.11). The <↓> flashes if the piston is not at the bottom stop
position to alert the user that this indicator is Not Ready.
<↑>
Piston position Not Ready, high (above the position limits specified in the current
SETUP file) (see Section 3.11). The <↑> flashes if the piston is not at the top stop
position to alert the user that this indicator is Not Ready.
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Piston position not known (current specified mass load is less than the load of the piston
+ bell). The mass carrying bell must be installed for PG9000 piston position measurement
to operate correctly – any random piston position values that may be indicated are not valid
when the mass carrying bell is not installed.
Piston position always indicates Not Ready if automated pressure
generation is adjusting pressure, regardless of actual piston position.
3.4.2
Piston Rotation Rate Ready/Not Ready
The piston rotation Ready/Not Ready character indicates Ready or Not Ready based on the
rotation rate of the piston.
The piston rotation Ready/Not Ready character is the second character from the left on the
top line of the main run screen.
The piston rotation rate Ready/Not Ready criterion is specific to the currently active piston
cylinder module and can be edited by the user (see Sections 3.12.1.1).
Piston rotation rate Ready/Not Ready character indications include:
< * >
Rotation rate Ready: Rotation rate is within the rotation rate limits specified in the
current piston-cylinder module file) (see Section 3.12.1.1).
<
<
>
Rotation rate Not Ready, low: Rotation rate is less than the lower rotation rate limit
specified in the current piston-cylinder module file (see Section 3.12.1.1)
or motorized rotation system is currently engaged. Note that the low rotation limit is
automatically reduced when the mass loaded on the piston is less than 3 kg. The
<
<
> flashes if the piston is floating to alert the user that this indicator is Not Ready.
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Rotation rate not known: Current specified mass load is less than the load of the
(piston + bell). The bell must be installed for PG9000 piston rotation rate measurement
to operate correctly so piston rotation rate cannot be measured when the bell is not
installed.
At mass loads less than 3 kg the low rotation limit is automatically reduced
to an operational minimum to maximize free rotation time.
© 2011 Fluke Calibration
Note
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