Inficon Transpector XPR 3+ - Chapter 6 Transpector XPR 3+ Low Pressure EM; 6.2 Transpector XPR 3+ Filament Caution; 6.3 Electron Multiplier Caution

6 - 1
Transpector XPR 3+ Operating Manual
Chapter 6
Transpector XPR 3+ Low Pressure EM
6.1 Introduction
This chapter provides information concerning the Transpector XPR 3+ Low
Pressure EM option. Information concerning the software is located in the
FabGuard Explorer Operating Manual or the FabGuard help files, included with
your Transpector XPR 3+ Gas Analysis System.
6.2 Transpector XPR 3+ Filament Caution
Sampling atmosphere or oxygen above 1x10
-4
Torr using Transpector XPR 3+ is
not recommended. To obtain maximum useful life from the Transpector XPR 3+
filaments observe the following caution.
CAUTION
Attempting to turn on the emission above 10 mTorr
(20 mTorr with Pirani Interlock option) may result in
premature failure of filaments.
Utilize the Pirani Interlock option or other measures to
operate the Transpector XPR 3+ within a safe pressure range.
Failure to observe this caution will result in premature failure of filaments. Filament
replacement is not covered by warranty under these conditions.
Please read Chapter 3, How The Instrument Works, before using the Transpector
XPR 3+ filament and follow the recommendations in the Transpector XPR 3+
Operating Manual, Chapter 6, Best Known Methods.
6.3 Electron Multiplier Caution
CAUTION
Operating the Electron Multiplier at a total pressure
greater than 1x10
-4
Torr, or with an output current greater
than 5x10
-7
Amps, will damage the Electron Multiplier and
reduce its lifetime.