Yokogawa GC8000 Process Gas Chromatograph - Manual (Page 63)

<4. Display and Operations while Connected to GC8000>
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IM 11B06C01-01E
4.3.10 Operating Valves
Operate valves in the following procedure. You operate valve 1-1 in this example.
Ensure the GCM is in Manual status. From the Manual/Range menu, select “Oven1”, “VLV” and
“VLV1-1” commands in this order. Now, you can turn valve 1-1 on or off.
When the valve is Off and when you select this command, a confirmation message showing
“The valve is turned On” appears in the message box. When you respond with “Yes”, the valve is
turned On.
Similarly, when the valve is On and when you select this command, a confirmation message
showing “The valve is turned Off” appears in the message box. When you respond with “Yes”, the
valve is turned Off.
Operate valves 1-1 to 1-6, 2-1 to 2-6, and 3-1 to 3-6 in the similar way. Note that valves not
assigned to the system are grayed out and you cannot operate them.
You can also operate the valves by selecting the desired one from the valve status display of
Analyzer Operation window.
4.3.11 Operating Atmospheric-Pressure Balancing Valve
Operate Atmospheric-Pressure Balancing Valves in the following procedure. You operate
Atmospheric-Pressure Balancing Valve 1-1 in this example.
Ensure the GCM is in Manual status. From the Manual/Range menu, select “Atm” and “Atm1-
1” commands. Now, you can turn Atmospheric-Pressure Balancing Valve 1-1 on or off. The
operations are the same as for Subsection 4.3.10 “Operating Valves.”
Note that the Atmospheric-Pressure Balancing Valves not assigned to the GCM are grayed out
and you cannot operate them.
You can also operate the valves by selecting the Atmospheric-Pressure Balancing Valve display
of Analyzer Operation window.
4.3.12 Operating Detectors
Operate detectors in the following procedure. You operate Detector 1-1 in this example.
Ensure the GCM is in Manual status. From the Manual/Range menu, select “Oven1”, “DET” and
“DET1-1” commands in this order. Now, you can turn Detector 1-1 on or off. The operations are
the same as for Subsection 4.3.10 “Operating Valves.”
Note that the detectors not assigned to the system are grayed out and you cannot operate them.
You can also operate the detectors by clicking the ON/OFF display of detector status in the
display section of the Analyzer Operation window.
4.3.13 Operating Hydrogen Limiting Unit
Operate the Hydrogen Limiting Unit in the following procedure. You operate Hydrogen Limiting
Unit 1 in this example.
Ensure the GCM is in Manual status. From the Manual/Range menu, select “Oven1”, “HL” and
“HL1” commands in this order. Now, you can turn Hydrogen Limiting Unit 1 (HL1) on or off. The
operations are the same as for Subsection 4.3.10 “Operating Valves.”
Note that the Hydrogen Limiting Units not assigned to the system are grayed out and you cannot
operate them. You can also operate the units by clicking the ON/OFF display of HL status in the
data display section of the Analyzer Operation window.
5th Edition : Nov. 16, 2011-00