LEAK DETECTION
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Proceed as for Pumping
the dewar.
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Set the FILAMENT ON/OFF switch to AUTO RESET.
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The TEST light should be on, on the leak detector panel. If it does not
light, move front panel switch
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to RESET, then move it on START again. The TEST light should be now on.
if it still does not work, you can play a little bit with the transfer pressure
control.
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Once the TEST light is ON you can start checking for leaks.
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Check the sensitivity of the leak detector on the LEAK INDICATOR PANEL.
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Use helium to check for leaks.
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Close the valve of the dewar.
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Front switch : RESET, VENT.
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Disconnect DEWAR from the pump and pour liquid nitrogen into it.
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