Sierra Instruments Instruction Manual
Smart-Trak
®
2 Series 100
41
If you wish to change the gas used in the instrument, press enter. The name of the
gas will blink. Use the up and down arrows to make your selection. When you
reach the desired gas, press enter. You will see:
Change Gas
XXXX
You can make additional changes by using the left and right arrow keys to move to
other Lower Level Screens. You may also choose to press the escape key to return
to the Upper Level Screens and to observe your change.
Note: your instrument comes with 10 pre-programmed standard gases. These are
listed in the Specifications in Appendix
B.
Smart-Trak 2 may be ordered with
alternate gases programmed. If your device was so ordered, you may choose from
these 10 gases instead. You may see the 10 gases programmed in your instrument
by using this screen and simply scrolling up or down.
Change Valve Operation-Close, Purge
If you are already in the Lower Level Screens, push the right or left arrow until you
reach the Change Valve Operation screen. To get to this screen
at any time: Press
Escape—Press Enter—enter password and Press Enter. Then, press the Right or
Left arrow until you reach this screen. The display will show:
Change Valve
Operation
Automatic
From this screen you may set the valve to open all the way (“Purge”), force the
valve to remain closed until further changes are made (“Valve Closed”) or set the
valve to control flow when it receives a setpoint from some source (“Automatic”).
To make a change to the valve operation, press the enter key. Use the up and down
arrows to make your selection. When you are satisfied, press the enter key again.
You will see:
Change Valve
Operation
XXXXX
You can make additional changes by using the left and right arrow keys to move to
other Lower Level Screens. You may also choose to press the escape key to return
to the Upper Level Screens.
Caution!
The Smart-Trak 2
valve is not a positive
shut-off device.