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An independent agency has determined that all vacuum chambers regardless of manufacture, can
possibly become charged to lethal voltage levels, under certain conditions, if they are not grounded
with a quality, common ground with the controller of their ionization tube.
After each maintenance/service procedure and before operating the controller and vacuum system,
verify the integrity of the ground of both units; failure to do so could cost you your life!
WARNING
_____________
Check that your Ion Gauge Controller and vacuum system are sepa-
rately grounded to a common ground.
Placement of a ground wire between the vacuum chamber and the con-
troller chassis is not safe; large continuous currents could flow through it.
Personnel could be killed by high voltages (160 to 900 volts may be pre-
sent in an improperly grounded system).
Make absolutely sure that your vacuum system is grounded as shown in
the following schematic diagram; test the system ground be sure that it is
complete and capable of supporting at least 10 amperes.