Yokogawa GC8000 Process Gas Chromatograph - Manual (Page 88)

<1. Overview>
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IM 11B08A01-01E
Stop Stop Run
W7 W7
S7 S7
Time
Stream sequence 1 Calibration 1 (Replaceable) (Replaceable) Stream sequence 1
Assinning calibration 1
Stop command
Calibration (or validation)
start command
Calibration (or validation) stop command
[4E2]
● In the case where a forced stop command is received during the run mode in the (manual)
calibration/validation status [4F2]
The measurement status immediately changes to “Replaceable” in the stop mode in the
calibration (or validation) status.
● In the case where a forced stop command is received when the operation mode is prepared
to be changed from the run mode to the stop mode in the (manual) calibration/validation
status [4F3]
The measurement status immediately changes to “Replaceable” in the stop mode in the
calibration (or validation) status.
Stop Stop Run
(Waiting for stop)
W7 W7
S7 S7
Time
Stream sequence 1 Calibration 1 (Replaceable) (Replaceable) Stream sequence 1
Assinning calibration 1
Forced stop command
Calibration (or validation)
start command
Calibration (or validation) stop command
[4F2] [4F3] (Stop command)
[4F3]
(b) Semiautomatic calibration
• To select the calibration (or validation) method, touch the “Calibration (validation) method”
button to open the selection window on the GCM operation status screen on the GC-HMI
analyzer operation display (Figure 1.28) or select it on the “Calibration/validation setting”
screen on the EtherLCD (Figure 1.29). A set of stream numbers and the numbers of times
of measurement is specifi ed for each of Calibration 1 to 6 and Validation 1 to 6 on the
“Calibration/validation setting” screen on the EtherLCD. Users at Level C or higher are
allowed to select the calibration (or validation) method.
• Next, issue a command to change the measurement status to a preset status among
Calibration 1 to 6 or Validation 1 to 6 on the calibration (validation) window on the GCM
operation status screen. Calibration (or validation) numbers for which stream numbers are
not specifi ed are not in the options. If there is no calibration (or validation) numbers for which
stream numbers are specifi ed, the operation button is invalid and is displayed in gray.
Select a calibration (or validation) number, and then touch the “OK” button. Then the
waiting measurement status is changed to the selected calibration (or validation) number
on the overall GCM information screen. Users at Level B or higher are allowed to select the
calibration (or validation) number.
Users at Level C or higher can cancel the command to change the measurement status
to the specifi ed calibration (or validation) status until the waiting measurement status is
changed to the selected calibration (or validation) number and the measurement of the
currently-measured stream is completed.
(Figure 1.30)
2nd Edition : May 11, 2012-00
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