Yokogawa GC8000 Process Gas Chromatograph - Manual (Page 181)

<3. Basic Operation and Startup>
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IM 11B08A01-01E
(2) Calibration method
If the stream valve on the standard sample stream is automatic, automatic calibration and semi-
automatic calibration can be selected. If the stream valve is manual, only manual calibration
can be selected. For the contents of calibration methods, see 5.1.4 Operation of Calibration and
Validation.
(3) Checking parameter settings
Before giving a calibration command, confi rm the setting of the preset calibration stream number,
the pre-calibration (post-calibration) validation stream number, and the pre-calibration (post-
calibration) validation stream number of times. See the EtherLCD calibration setting screen.
(a) Cal/Val Setup screen
(1) Display the Cal/Val Set (Main) screen of the EtherLCD.
The procedure is as follows:
• Press the in the navigation bar on the analyzer operation screen to display the setting
screen.
• Press General Setting.
• Press EtherLCD.
• Press Table key.
• Press Next key.
• Confi rm that the cursor (>) is on the left to the Cal/Val Setup.
• Press Set/Ent key.
(2) Items of the Cal (Val) method
See the Operation data for the values set at shipment.
When the stream valve on the standard sample stream is an automatic valve, either Auto cal
or Semi-auto can be selected.
When the stream valve is a manual valve, only Manual cal can be selected.
For specifi c calibration methods, see XXX Operation of Calibration and Validation.
(3) Other items
When the Auto is selected in the Cal (Val) method, the periodic calibration is automatically
conducted.
In the case of Auto cal, set the following items.
1. Auto start date sets the starting day of calibration
2. Auto start time sets the starting time of calibration (24-hour clock)
3. Time interval sets the interval of calibrations
4. Confi rm Executing is displayed in the Auto cal status.
Pressing F2 (Start) or F3 (Stop) alternates Executing and Stopping in the Auto cal status.
When the power is turned on, the Auto cal status changes to Stopping. Follow the above
1. and 2. settings to return it to Executing.
IMPORTANT
In the case of Auto cal, set the respective items on Cal/Val Set (Main) screen and then Auto cal
status to Executing. Automatic calibration starts according to the settings. Any change after that is
not refl ected.
2nd Edition : May 11, 2012-00