B) semiautomatic calibration – Yokogawa GC8000 Process Gas Chromatograph User Manual

Page 88

<1. Overview>

1-61

IM 11B08A01-01E

Stop

Run

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

Run

(Waiting for stop)

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