Configuring The Unit According To The Gas To Be Detected - Alcatel ASM 180 TD User Manual

Introduction
to the unit
The tracer gases which
can be used
Initialize the acceleration
voltage as a function of
the mass to be detected
Alcatel Vacuum Technology France - ASM 180 TD/TD+ - ASM 181 TD+ User's Manual
Configuring the unit according
to the gas to be detected
The following instructions only apply to units which are
equipped with the "3 Mass" option and for a change of
tracer gas.
The unit equipped with the "3 Mass" option does not have
any external differences in relation to the standard unit. The
modifications are inside the unit (analysis cell magnet and
electronic supervisor board).
The functions are the same as the standard detector.
Gas Atomic mass
Helium 4
4
Helium 3
3
Hydrogen
2
While the unit is switched off,
open the front cover of the unit
and tilt it forwards to access
the supervisor board.
C 60
Alcatel does not supply a
calibrated internal leak in
Helium 3 and Hydrogen.
The calibration is made
with an external calibrated
leak.
1/3