© Edwards Limited 2020. All rights reserved. Page 11
Operation
D14643880 Issue L
4 Operation
CAUTION
Do not operate Active Inverted Magnetron gauges at high pressures above 10
-2
mbar for long periods as the high
voltage discharge inside the gauge at these pressures can damage the anode pin and cause severe contamination
of the gauge.
CAUTION
Do not operate Active Inverted Magnetron gauges above an ambient temperature of +60 °C.
WARNING
Do not exceed an internal pressure of 5 bar gauge (6 bar absolute).
WARNING
Do not use the Active Inverted Magnetron gauge to measure the pressure of explosive or flammable
gas mixtures.
WARNING
Do not operate the Active Inverted Magnetron Gauge in external explosive atmospheres. (No
special precautions are made to limit the energy in the gauge electronics to the low levels
necessary to make an explosion possible).
WARNING
Do not operate an Active Inverted magnetron gauge when it is disconnected from the vacuum
system as high voltages (3kV) are present inside the gauge tube.
WARNING
An Instrument failure could cause a malfunction of signal outputs. If malfunction of a gauge could
cause danger to life or limb, additional safeguards MUST be taken.
WARNING
Fluoro-elastomer can decompose to hydrofluoric acid when heated above 315°C.
WARNING
The AIM gauge incorporates magnets. Keep away from heart pacemakers, computers, credit cards
and any other magnetically sensitive devices.
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