1Introduction
Vacuum gauge
16 5977C GC/MSD Operating Manual
• GC/MSD interface
• Electronics
• Analyzer
Vacuum gauge
The MSD may be equipped (or ordered) with an ion vacuum gauge. The Agilent
MassHunter GC/MS Acquisition software can be used to read the pressure (high
vacuum) in the vacuum manifold. Operation of the gauge controller is described
in this manual. The gauge is required for CI operation.
Table 3 5977C Series MSD features
Feature
High vacuum pump Diffusion Turbo
Optimal He column flow mL/min 1 1 to 2
Maximum recommended
gas flow mL/min
*
* Total gas flow into the MSD: column flow plus reagent gas flow (if applicable). Based on helium gas
use. For other gases the maximum flow will vary.
1.5 4
Maximum gas flow, mL/min
†
† Expect degradation of spectral performance and sensitivity.
26.5
Max column id 0.25 mm (30 m) 0.53 mm (30 m)
CI capability
‡
‡ Turbo pump models are field upgradeable to CI.
No Yes
Inert ion sources available Yes Yes
GC compatibility 9000 and 8890 9000 and 8890
Foreline pumps available Pfeiffer Duo Pfeiffer Duo,
Pfeiffer MVP-070-3x,
Agilent IDP-3 24V
DIP
**
capability (3rd party)
** Direct insertion probe.
Yes Yes
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