Chemglass AF-0304 - Manual (Page 13)

4. OPERATING INSTRUCTIONS
When the power is applied and the gauge tube connec-
tion is made, your instrument is in operation. After a
short time period for stabilization, the digital display will
show a reading of vacuum pressure.
At atmospheric pressure, and at pressures above the
designed range of the instruments, the display will show
a “1” with the other digits blanked out. This indicates
saturation.
The 100 mTorr instruments saturate at 110 mTorr and the
display shows a blinking “00.00” to indicate overrange.
Although the 100 mTorr analog output will still increase in
value from 1.10V @ 110 mT to 1.66V @ atm., the meters
are only accurate at 100 mTorr and below.
After saturation, when the pressure drops below full
scale, the instrument will resume reading vacuum
pressure.
4.1. Readings On The Display
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