Series 360, Granville-Phillips, Stabil-Ion, Ionization, Vacuum ...

Chapter 5
5 Operation of a Stabil-Ion System
The instructions in this chapter assume the instructions for Setup, Installation, and Preparing For
Operation have been completed. See Chapters 2, 3, and 4.
1. Press the power ON switch on the
Control Unit (see Figure 5-1).
2. If Convectron Gauge capability
is installed, Convectron Gauge
pressures will be displayed on lines
A and B of the display whenever the
power switch is on.
IG 8.56 -7
A
B
9.43 -3
5.67 -2
1
2
3
4
5
6
IG1
O
IG2
O
DEGAS ON
O O
Figure 5-1
Control Unit Front Panel Showing
Power ON Button.
Table 5-1
Convectron Gauge Display Formats.
Units Display Format Pressure Example
torr scientific < 1 Torr 3.23–3 Torr
floating point > 1 Torr 7.15 Torr
mbar scientific < 1 mbar 5.18–2 mbar
floating point > 1 mbar 88.6 mbar
scientific > 999 mbar 1.23+3 mbar
pascal scientific < 1 Pa 7.23–1 Pa
floating point > 1 Pa 78.3 Pa
scientific > 999 Pa 1.25+4 Pa
Special Considerations for Convectron Gauge Use Below 10 -3 Torr
During a fast pumpdown from atmosphere, thermal effects will prevent the Convectron Gauge
from tracking pressure accurately below 10 -3 Torr. After about 15 minutes, indications in the
10 -4 range will be valid and response will be rapid. Zero adjustment at vacuum may be
performed at this time (or sooner if readings in the 10 -4 range are not needed).
Series 360 Stabil-Ion December, 2001
5-1