4.2
Mini Bayard-Alpert Configurations
4
HIGH VACUUM VERSIONS AND OPERATION
4.2.1
ON/OFF
The first
SETUP
position on Mini Bayard-Alpert configurations allows the mini BA sensor to be toggled
between
ON
and
OFF
using the
UP
and
DOWN
arrows. If the sensor is set to
OFF
, the sensor will not
turn on under any circumstances. If the sensor is set to
ON
, the sensor will turn on if the low vacuum
sensor in Channel 1 is below 10 mTorr. If the low vacuum sensor in Channel 1 is above 10 mTorr,
the display for the mini BA sensor will read
RDY
to indicate that the sensor is ready for automatic
operation but the pressure is not low enough to allow for its operation.
4.2.2
Sensitivity
The second
SETUP
position on Mini Bayard-Alpert configurations allows the user to set the sensitivity
for the mini BA sensor. The value can be set between 1 and 99 using the
UP
and
DOWN
arrows.
Changing the sensitivity will affect the reading of the mini BA sensor. Mini BA sensors from Fredericks
Company have a sensitivity of 10/Torr.
4.2.3
Filament Select
The third
SETUP
position on Mini Bayard-Alpert configurations allows the user to select between the
two filaments of the mini BA sensor. The user can only select between the two filaments when the
mini BA sensor is not currently powered. Note that it can be set in
RDY
mode. Use the
UP
and
DOWN
arrows to toggle between the two filaments, indicated by
FIL 1
and
FIL 2
.
4.2.4
Filament Degas
The fourth
SETUP
position on Mini Bayard-Alpert configurations allows the user to degas the mini
BA sensor. Degassing is a heating of the sensor via electron bombardment (EB) to decrease the
outgassing of the sensor when it is pumped down. This feature is toggled on by selecting a time of
one to five minutes using the
UP
and
DOWN
arrows after pressing
SETUP
four times. To cancel the
degas at any time, press
TEST/OP
.
email: sales@frederickscompany.com
tel: +1 215 947 2500
web: frederickscompany.com
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