3 • Additional safety instructions for APC
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80114-770_V23802
2021-01
WARNING
Uncontrolled escape of argon
If the gas accumulates in air you are breathing, there is a risk of suf-
focation. Symptoms include drowsiness, rise in blood pressure, and
respiratory distress. In an atmosphere of pure argon a person would
fall unconscious immediately without any warning and suffocate.
When bottle valves are opened, there is a brief hissing sound. If
the hiss continues for more than 2 seconds, there is a leak. The
gas bottle must be closed again immediately. The device may only
be used when the leak has been stopped by a competent techni-
cian.
Make sure the connections of the pressure lines to the APC 3 are
gastight. The same applies to the connection of the pressure reg-
ulator to the gas bottle.
Close the safety valves on the gas bottles after use,
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