Entering Maintenance Mode (with Monitor)
For models equipped with a monitor display, such as the GC-2030, the instrument can be switched to maintenance mode via the monitor. (Easy sTop function)
Procedures (Entering Maintenance Mode)¶
Step 1¶
Press
Step 2¶
When [Run] is pressed, injection port temperature decreases automatically.
Step 3¶
When injection port temperature decreases adequately and the instrument is ready for maintenance, the following message appears:
If [Carrier gas can now be stopped] is displayed on the monitor, stop the carrier gas manually by pressing [Stop]. This screen is not displayed if [Carrier Gas Stop] is set to [Auto].
The septum and insert can then be replaced. For details on the replacement procedure, see the following:
Procedures (Exiting Maintenance Mode)¶
Step 1¶
Press [Run] for [Setting up] to exit the maintenance mode.
Step 2¶
If [Leak Check] is set to [On], the leak check is performed automatically.
If the leak check fails, stop the carrier gas by pressing [Run] for [Carrier Gas Stop], and check for leaks.
If the leak check passes, the instrument exits maintenance mode and performs setup to resume original state.
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No leak check is performed if the carrier gas for GCMS is nitrogen.
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When using GCMS-QP2050, check for leakage from the intensity ratio of m/z 69(PFTBA) and m/z 28(Air) monitored by MS. The criteria can be changed by launching the [Analysis] program and clicking on [Main] assistant bar > [System Configuration] > [MS] Properties > [Test Values of System Check/Auto Tuning] > [System Check]Tab > [Vacuum Leak(Intensity Ratio of 69/28)].
Step 3¶
The carrier gas is automatically supplied, and the temperature control for the injection port and the column starts.
Step 4¶
Reset the number of uses for the replaced consumables. For details, see Resetting the Consumable Usage Count .
Resetting the Consumable Usage Count¶
Step 1¶
Go to the [Analysis Counter] screen to reset the counter.
Step 2¶
Reset the septum counter and the insert counter.