Teledyne 4020 – Hydrocarbon analyzer (special version for automatic background gas switching) - Manual (Page 72)

Operation Model 4020
Teledyne Analytical Instruments 54
<Enter> Press again to move to the Auto/MAN field.
<▲▼> Use the <▲▼> keys to toggle between Auto and
Manual.
<Enter> Press when Man is displayed on screen.
The next screen prompts you to select a range: R1, R2 or
R3.
<Enter> Press to highlight the Range field.
<▲▼> Use the UP/DOWN keys to choose R1, R2 or R3.
<Enter> Press to accept the displayed range. The arrow
will move to the line for defining that particular range. If
you don’t need to adjust the range setting, back
to the Analyze Mode and note that it is using the fixed
range you entered.
If you need to alter the range setting:
<Enter> Use the key to move to the value you want to
change to define the range you want to work with.
<▲▼> Use the UP/DOWN keys to cycle the numbers up or
down for each digit.
<Enter> Use the key to move to the next character
placeholder in the number field.
<Enter> When the last digit has been entered, press again
to accept the value or to abort the numerical
entry.
This same procedure is used to select and define all ranges.