XGS-600 Gauge Controller
DRAFT 4/15/14
19
Table 2-2 Gauge Selection Chart
Controller Gauge Card
Vacuum Regime
Convection
Hot Filament
Cold Cathode
Analog
Gauge
Type Recommendation Gauge Characteristics
CHMA
Rough ATM to 10
-3
✔
ConvecTorr Best overall convection gauge
for accuracy repeatability,
secure connection
• Stainless steel
• Pipe thread, KF and CFF
• Locking bayonet connector
✔
536 Same vacuum performance
as the ConvecTorr but
without bayonet connector
• Stainless steel
• Pipe thread, KF and CFF
✔
531 Most economical rough
gauge
•Lowest cost
• Mild steel
• Pipe thread
✔
CT-100 Most economical gauge • Active gauge - TC
✔
PVG Series Smallest active gauge for
rough vacuum applications
• Active gauge - Pirani
✔
PCG Series Combination CDG and Pirani • Active gauge CDG and Pirani - Good for rapid venting
to atmosphere
✔
CDG500 Accurate and reliable, fast
response
Capacitance diaphragm gauge - Fast response, gas
independent over whole range
High 10
-3
to
10
-9
✔
572 (glass) Most popular general purpose
HV gauge (hot filament)
• Measures to 1 x 10
-9
Tor r
• Tungsten filaments - More accurate and repeatable
• Glass - Can see when it is on
✔
563 (glass) Best general purpose HV
gauge (hot filament) for
overall performance and
reliability
• Measures to 1 x 10
-9
Tor r
• Thoriated iridium filament -
More robust with better burnout resistance
• Glass - Can see when it is on
• Platinum coating - Provides higher performance in the
10
-4
range and a measure of EMI shielding
✔
571 (glass) Same as 563 without
platinum coating
• Less expensive than the 563
✔
MBA-100
(one
filament,
metal case)
Break resistant HV gauge
(hot filament)
• Measures to 10-9 Torr
• General purpose hot filament with metal housing (not
glass) , so it will not break
• Uses less power than glass gauges.
• Well shielded
• Available in tungsten and thoriated iridium filament
(see 572 and 563 above)
MBA-200/
MBA2
(two
filaments,
metal case)