7000C chamber door will not open

Hi JessicaM,

i send you the procedure with all the steps, check that vent valve is opened, and the screw that is located in the right top of the analyzer is untighten. you can also pull out the top right corner of the analyzer door .

1 Click the MS Tune icon from the Instrument Control panel.

2 Select the Manual Tune tab.

3 Select the Vacuum Control tab.

4 Click the Vent button.

5 Set the GC/MS interface heater and the GC oven temperatures to ambient (room temperature).

6 Turn off the MS by pressing the power switch. 

7 Unplug the MS power cord.

8 Remove the analyzer window cover

 WARNING If you are using hydrogen as a carrier gas, the carrier gas flow must be off before turning off the MS power

 If the foreline pump is off, hydrogen will accumulate in the MS and an explosion may occur. Read “Hydrogen Safety” before operating the MS with hydrogen carrier gas.

CAUTION Be sure the GC oven and the GC/MS interface are cool before turning off carrier gas flow.

WARNING When the MS is vented, do not put the Workstation into Instrument Control view. Doing so will turn on the interface heater. 

9 Turn the vent valve knob  counterclockwise only 3/4 turn or until you hear the hissing sound of air flowing into the analyzer chamber.

Do not turn the knob too far or the O-ring may fall out of its groove.

Be sure to retighten the knob before pumping down.  

WARNING Allow the analyzers to cool to near room temperature before touching them.

CAUTION Always wear clean gloves while handling any parts that go inside the analyzer chambers

I will appreciate you feedback

Thanks Regards

Hi JessicaM,

i send you the procedure with all the steps, check that vent valve is opened, and the screw that is located in the right top of the analyzer is untighten. you can also pull out the top right corner of the analyzer door .

1 Click the MS Tune icon from the Instrument Control panel.

2 Select the Manual Tune tab.

3 Select the Vacuum Control tab.

4 Click the Vent button.

5 Set the GC/MS interface heater and the GC oven temperatures to ambient (room temperature).

6 Turn off the MS by pressing the power switch. 

7 Unplug the MS power cord.

8 Remove the analyzer window cover

 WARNING If you are using hydrogen as a carrier gas, the carrier gas flow must be off before turning off the MS power

 If the foreline pump is off, hydrogen will accumulate in the MS and an explosion may occur. Read “Hydrogen Safety” before operating the MS with hydrogen carrier gas.

CAUTION Be sure the GC oven and the GC/MS interface are cool before turning off carrier gas flow.

WARNING When the MS is vented, do not put the Workstation into Instrument Control view. Doing so will turn on the interface heater. 

9 Turn the vent valve knob  counterclockwise only 3/4 turn or until you hear the hissing sound of air flowing into the analyzer chamber.

Do not turn the knob too far or the O-ring may fall out of its groove.

Be sure to retighten the knob before pumping down.  

WARNING Allow the analyzers to cool to near room temperature before touching them.

CAUTION Always wear clean gloves while handling any parts that go inside the analyzer chambers

I will appreciate you feedback

Thanks Regards

Between step 4 and step 6...wait for the system to tell you that Vent is Complete .  Do not just set the instrument to vent and then turn it off... damage could occur.

Step 7  unplugging the power cord is unnecessary.