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| NG C820 0 AN D PGC1000 US ER MAN UA L | 2101510 MNAH
11.2.6
Digital-Analog Board Communication Error Alarm
This alarm indicates a communication error between the digital board and the analytical processor
board. Verify the cable connectors are firmly and correctly connected to both the digital and analytical
processor boards.
To troubleshoot digital-analog board communication error:
1.
In the alarm log, check the frequency of the error. If multiple errors exist, place the device in
hold and then launch a cycle.
2.
If the alarms continue to register, perform a warm start.
3.
When the device completes the startup diagnostics without error, place the device in run.
4.
Following 2-3 cycles, verify that no new alarms are registering.
If alarms continue to register, call technical support.
11.2.7
Calculation Error Alarm
This alarm indicates the AGA-8 compressibility calculation is not functioning properly. Typically, this
error would be caused by a gas sample being out of specification for AGA-8; but it could indicate that
the component’s peak has shifted.
To troubleshoot calculation error:
1.
Calibrate the analyzer (see section
), ensuring that the next mode is set to hold.
2.
When the unit enters hold, select
Peak Find
.
3.
Verify that the peaks are correctly labeled and integrated. If the peaks are not correctly labeled
and integrated, continue to the next step. Otherwise, skip to step 5.
4.
In the Peak Find screen, select
Run Manual PF
. When the cycle is complete, repeat step 3.
5.
Under Next Mode, select
Run
.
6.
Allow the unit to run a minimum of an hour and then perform a calibration.
11.2.8
Calibration Un-normalized Error Alarm
This alarm indicates a change to the un-normalized total of sufficient percentage to activate the
alarm. This alarm will discontinue a scheduled calibration and will need to be disabled prior to
calibrating the unit.
To troubleshoot calibration un-normalized error:
1.
On the Analyzer Operation screen, click
Hold
under Next Mode. When the unit completes the
current cycle and enters hold, continue to the next step.
2.
Compare the calibration blend concentrations to the calibration blend concentrations listed on
the Calibration Setup screen. If an error exists, make corrections and send the setup when
complete.
3.
Under
Stream Setup
>
Alarm Definitions
, locate the calibration un-normalized error alarm
and set alarm enable to
No
. Send change. Repeat for any additional streams with this alarm.
4.
Calibrate the analyzer (see section
, ensuring that the Next Mode is set to
Hold
.
5.
When the unit enters hold, select
Peak Find
.
6.
Verify that the peaks are correctly labeled and integrated. If the peaks are correctly labeled and
integrated, return the unit to operation.
7.
Select
Peak Find
from the Analyzer Operation screen. Select
Run Manual PF
.
8.
When the unit enters hold, verify that the peaks are correctly labeled and integrated. If the
peaks are correctly labeled and integrated, return the unit to operation; otherwise, contact
technical support.
9.
Reset the Alarm Enable to
Yes
. Verify that the alarm threshold is a valid configuration.
Typically, the un-normalized total should be within 50% (between 99.5 and 100.5).
10. Return the unit to regular operation.
11.2.9
Stream Sequence Error Alarm
This alarm indicates a synchronization problem following a manual data post process in factory mode.
To troubleshoot stream sequence error:
1.
On the Analyzer Operation screen, click
Hold
under Next Mode. When the unit completes the
current cycle and enters hold, continue to the next step.
2.
Perform a warm start (see section
11.2.10 Calibration CV Percent Error Alarm
This alarm is activated when there is a sufficient change to the CV percent. This alarm will discontinue
a scheduled calibration and will need to be disabled prior to calibrating the unit.
