Operation
Calibration Menu
Thermo Electron Corporation Model 42i Low Source Instruction Manual 3-29
Zero/Span Ratio The Zero/Span Ratio screen is used to adjust the ratio of zeros to spans. For
example, if this value is set to 1, a span check will follow every zero check. If
this value is set to 3, there will be two zero checks between each zero/span
check. This value may be set from 1 to 10, with 1 as default.
• In the Main Menu, choose Calibration > Zero/Span Check >
Zero/Span Ratio.
• Use and to increment and decrement the numeric value.
•Press to save the ratio value.
ZERO/SPAN AVERAGING TIME:
CURRENTLY: 60 SEC
SET TO: 90 SEC ?
©ª
CHANGE VALUE
SAVE VALUE
RANGE AVG DIAGS ALARM
ZERO/SPAN RATIO:
CURRENTLY: 1 :1
SET TO: 2 :1 ?
©ª
CHANGE VALUE
SAVE VALUE
RANGE AVG DIAGS ALARM
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