FAQ - Frequently Asked Questions

For power outages of 10 minutes or less, normally no particular procedure is required as long as the [Vacuum Restart Mode] checkbox is selected in the window opened by clicking [Option] in the [Vacuum Control] window. The instrument will automatically restart when the power comes back on.

 

For long-time power outages, perform the following procedure.

1. Turn off the gas chromatograph and mass spectrometer.
2. Turn off all accessories.
3. Close the valves in all carrier gas, CID gas and air lines.
4. Loosen the nut fastening the column on the interface to release the vacuum of the vacuum system.
5. Turn off the power supply.
  • If the power cable is attached to a power board, turn off the power board.
  • If the power cable is plugged into an outlet, unplug the cable.

 

For power outages while using hydrogen carrier gas, perform the following procedure.

1. Immediately stop the supply of hydrogen gas.
2. Switch OFF power to the GC and the MS.
3. Open the windows and doors of the room where the instrument is installed to thoroughly ventilate.
4. Confirm that there is no ignition source in the room that could ignite the hydrogen gas.
5. Wait until the temperature of all components of this product has fallen to the ambient temperature (approximately 1 hour).
6. Open the front door of the GC and loosen the nut of the interface to return the interior of the MS to atmospheric pressure.
7. Confirm that the knob on the front door of the MS is completely loose.
8. Wait until all hydrogen gas is completely expelled (approximately 30 minutes).
9. After confirming the items in "Precautions in Installation" and "Precautions in Operation and Running of the Instrument", use the standard startup procedure to start the GC and MS.