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

4 Preparing the Stabil-Ion System for Operation
4.4 Stabil-Ion Gauge Calibration Memory
The Stabil-Ion Gauge is the first ionization gauge with sufficient
long term stability to justify storing calibration data in memory.
The calibration data is stored in a nonvolatile memory in the
electrometer module. Granville-Phillips calibration data for N 2
is averaged over a number of nominally identical Stabil-Ion
Gauges and programmed in memory (Standard Calibration).
All Stabil-Ion Systems are supplied with this feature.
Figure 4-5
360118
MEMORY MODULE
S/N XXXX I 1
Calibration Memory Module.
If the Stabil-Ion Gauge calibration is for a gas type other than N 2 (or air), we suggest placing a label
near the first line of the display indicating the gas type or types used for calibration to prevent mixups.
4.4.1 Memory Modules for Stabil-Ion Gauge
IG1 and IG2 data is stored independently and must be loaded from separate Memory Modules.
Each module contains data for both cathodes in a Stabil-Ion Gauge.
New data for each gauge can be transferred to the internal memory using a Memory Module which
has been programmed by Granville-Phillips. The IG destination for the data contained in the
Memory Module is predetermined at the time it is programmed and is stored along with the data.
The data is individually serialized, and the serial number is printed on the module's label as well as
being stored electronically in the memory.
When the Dual Stabil-Ion Gauge option is not installed in the Power Supply (as evidenced by only
one IG connector on the rear panel of the Power Supply), two separate Memory Modules can be
used for IG1 by selecting either IG1 or IG2 for gauge operation. If you wish to use this special
capability of the 360, we recommend that you contact the factory for further explanation.
4.4.2 Using a Memory Module for IG1 or IG2
1. Turn off power.
2. Open front panel door.
Protect the Memory Module from static electricity. Touch a grounded,
unpainted metal surface on the 360 Control Unit and then touch the surface
of the anti-static bag before removing the Memory Module from its bag.
3. Using a high impedance grounding wrist strap or other effective antistatic protection, remove
the Memory Module from its antistatic packaging. Save the antistatic packaging.
4. Plug the Memory Module into the data port with the writing on the module label right-side-up.
5. Turn on power. Within 5 seconds the data in the Memory Module will transfer to main
memory.
6. The last 3 digits of the Memory Module identification numbers will be displayed for a few
seconds and thereafter for a few seconds each time the Stabil-Ion System power is turned on. If
two Memory Modules are utilized, two numbers will be displayed in sequence in the top
display—the first for IG1, the second for IG2. If the memory contains standard factory supplied
data, the serial number of that data, when displayed, will begin with 0.
4-8
Series 360 Stabil-Ion December, 2001