Fluke PG9000 Series Operation And Maintenance Manual page 82

PG9602™ OPERATION AND MAINTENANCE MANUAL
4. Viewing and setting the UPPER LIMIT of the automated pressure generation
component to avoid accidental overpressure (see Section 3.10.9.3).
5. Viewing and setting the assumed pressure controller tolerance used to determine
pressure setting limits when floating the PG9000 piston (see Section 3.10.9.4).
6. A choice to not readjust piston position if the piston is already floating within the
Ready position limit after a new target is executed (see Section 3.10.9.5).
 OPERATION
To access the GEN functions, press [GEN].
display is:
<AutoGen ON> or <AutoGen OFF> indicates the current state of AutoGen. Use <1on> or
<1off> to change the state.
If automated pressure control is OFF, PG9000 attempts to turn automated pressure control
ON when <1on> is pressed. To do so, communication must be established with a valid
automated pressure control component over the COM3 RS232 port (see Section 3.12.5.1). If
PG9000 is not able to establish communication with the pressure control component, <P
control timeout, autogen off> is displayed momentarily. Correct the communications error
with the pressure control component and try again. If PG9000 is able to establish
communications with a valid automated pressure control component, <Turning ON
automated generation> is displayed momentarily and automated control is turned ON.
The PG9000 automated control function will attempt to float the piston within the piston
position ready limits (see Section 3.4.1) after any mass-to-pressure or pressure-to-mass
command has been confirmed. It will continue to attempt to float the piston until [ENT] is
pressed to initiate a new command, a function key is pushed to interrupt AutoGen, or
automated pressure control is turned OFF using [GEN].
If automated pressure control is ON and <1off> is pressed, <Turning OFF automated
generation> is displayed momentarily and automated control is turned OFF. The PG9000
automated control function is inactive.
•
Automated pressure generation/control ON is indicated by a <G> in the
right of the top line of the PG Terminal main run screen. The <G> flashes
when automated generation is active (see Section 3.8).
•
If <G> does not flash after a new pressure target has been executed then it
indicates a fault. Turn off AutoGen and turn it back on to reinitialize
communication with the automated pressure generation / control device.
•
Proper operation of the automated pressure generation/control function is
dependent on PG9000's measurements of piston position. When using
AutoGen, be sure that the piston position indication system is properly
adjusted (see Section 5.2.2).
•
Proper operation of the automated pressure generation/control function is
dependent on PG9000's measurements of piston position and rotation
rate. These measurements are only available when the mass loading bell
is installed on the piston.
automatically turned off when the PG9000 entered pressure or mass load
does not include the mass loading bell.
To help protect against accidental overpressure, when using automated
pressure generation/control, set the upper limit (UL) of the pressure
control system using [GEN], <4UL> (see Section 3.10.9.3).
© 2011 Fluke Calibration
The
AutoGen OFF
2target 3raise 4UL 
5tol 6refloat
Note
Automated pressure generation/control is
 Caution
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