Granville-Phillips Series 330, Instruction Manual, Page: 30 / 76

3 Operation
30
Series 330 Vacuum Gauge Controller
Instruction Manual - 330004 - Rev. 02
3.3 Specifications
3.3.2 Electrometer/Ion Gauge Pressure Range Specifications
An internal overpressure limiter is factory adjusted to trip at a pressure of 1 decade below the upper
limits specified above. Refer to Section 4.4.3 for readjustment instructions.
3.3.1 330 VGC Specifications
Table 3-2 Series 330 VGC Physical Specifications
Parameter Specification
Width 241 mm (9.5 in.) with 1/2 rack mounting brackets
Height 89 mm (3.5 in.)
Depth 356 mm (14 in.) includes 76 mm (3 in.) for connectors and cables
Weight 4.8 kg (10.5 lb.)
Environmental Temperature
0
o
C to 40
o
C
Table 3-3 Series 330 VGC Electrical Specifications
Parameter Specification
Voltage 90-130 VAC or 200-260 VAC
Frequency 50 to 60 Hz
Power 100 watts max
Fuse Ratings 1.25 A (90-130 V)
.60 A (200-260 V)
Table 3-4 Emission Range for Non UHV Ion Gauges
.01mA to.1mA .1mA to 1mA 1mA to 10mA
1 x 10
-8
to 1 x 10
-1
Torr 1 x 10
-9
to 1 x 10
-2
Torr 1 x 10
-10
to 1 x 10
-3
Torr
Readable to:
1 x 10
-9
Torr 1 x 10
-10
Torr 1 x 10
-11
Torr
Table 3-5 Pressure Display Specifications
Parameter Specification
Electronic Accuracy
Typical ± 3% of reading at ambient temperature of 25 ± 5
o
C
Display Units Torr unless otherwise requested. Adjustment and internal selector switch provides readout
in mbar or pascal.
Display Resolution Scientific notation, 2 significant digits
Display Update Time 0.5 sec. typical as shipped. Internal switch selectable to 3 sec. reading averaged