1Introduction
14 5975/5977 Series MSD Operating Manual
Vacuum gauge
The MSD may be equipped (or ordered) with an ion vacuum gauge. The
OpenLAB CDS 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.
Table 3 5977B 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)
Inert ion sources available Yes Yes
GC compatibility 6890/7820/7890
Series
6890/7820/7890 Series
Foreline pumps available Pfeiffer Duo 2.5 Pfeiffer Duo 2.5, MVP-070-3,
MVP-070-3C, IDP3 24V
DIP
‡
capability (3rd party)
‡ Direct insertion probe.
Yes Yes
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