Granville-Phillips Series 330, Instruction Manual, Page: 31 / 76

3 Operation
31
Series 330 Vacuum Gauge Controller
Instruction Manual - 330004 - Rev. 02
3.3.3 Convectron Gauge Specifications
3.3.4 Thermocouple Gauge Specifications
Table 3-6 Electrometer/Ion Gauge Specifications
Parameter Specification
Sensitivity 3/Torr to 50/Torr (the factory setting is 10/Torr)
Emission Current 10 µA to 10 mA in 3 decade ranges (factory setting is 1 mA)
Collector Potential 0 Vdc
Grid Potential +180 Vdc
Filament Potential +30 Vdc
Degas
I
2
R: 8 VAC, 10 A maximum
Analog Output 0-10 Vdc; Logarithmic; 1 V/decade
Table 3-7 Convectron Gauge Specifications
Parameter Specification
Gauge Type Granville-Phillips Series 275
Pressure Range
1 x 10
-4
Torr to 990 Torr, N
2
equivalent
Gas Type N
2
, Air
Analog Output Logarithmic, 1Vdc/decade, Factory set to 0-7 V,
Adjustable 1 V to -7 V, . 5 mA maximum current
Maximum Gauge Temperature
+150
o
C
Gauge Operating Temperature
+4
o
C to +50
o
C
Table 3-8 Thermocouple Gauge Specifications
Parameter Specification
Gauge Type G-P 270006, or Teledyne-Hastings DV-6M, DV-6R, DV-20, or equivalent
Pressure Range
10
-3
Torr to 1 Torr Nitrogen or air equivalent
Gas Type N
2
or Air
Analog Output
Voltage
Maximum Current
0-10 Vdc nonlinear
5 mA