Sierra Instruments Instruction Manual
Smart-Trak
®
2 Series 100
45
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.
Change Span Screen
If you are already in the Lower Level Screens, push the right or left arrow until you
reach the Change Span screen. To get 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.
From this screen you can change the instrument’s span distance by a percentage
factor ratio. For example, if your meter is reading 1% high of reading, change span
to 0.990 (99.0%) and the full scale value should be reduced by 1%. If your
controller is controlling 1% below of reading, the same change will bring it in. If
the meter is reading 1% low (controller controls 1% high), then change span to
1.010 (101.0%). The display will show:
Change Span
1.000
Air
To make a change, press the enter key. The first digit will begin to blink. Use the
up and down arrows to modify this digit or the left and right arrows to choose
another digit. When you are satisfied, press enter. The display will show:
Change Span
X.XXX
Air
Keep in mind that you can change the span for each individual gas, thus, a change
in the span to one gas will not affect the span of another gas. 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.
Zero Meter Screen
If you are already in the Lower Level Screens, push the right or left arrow until you
reach the Zero Meter screen. To get 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.