Solarus 950 Owner’s Manual and User’s Guide
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3.
Lower the lid back to a closed position, but leave the chamber at atmospheric
pressure.
4.
Operate the gauge for 10 minutes at atmospheric pressure.
5.
Press the button on the gauge momentarily (i.e., less than 5 sec). The button is
located below a hole behind the specimen chamber (see picture below). This
activates the atmospheric calibration and adjusts the gauge to 750 Torr (1000
mbar). A tool of less than 1.1 mm (such as a small hex key) diameter is
needed to operate the button.
ƒigure 24
Access to Pirani gauge calibration button
N
OTE
:
The button is in the Pirani gauge, which is located just below this hole.
You will have to feel for the button with a tool.
6.
Touch
Vacuum
on the Solarus touch screen. Wait for the system to pump the
chamber down to its operating pressure.
7.
Touch
Display
. The display will change so that the pressure will be shown.
Wait for the pressure reading to stabilize at a minimum value. 10 minutes
should be fine.
