Zero/Span Averaging Time; Zero/Span Ratio - Thermo Scientific 48i Instruction Manual

Operation
Calibration Menu
Zero/Span Averaging
Zero/Span Calibration

Zero/Span Ratio

3-24 Model 48i Instruction Manual
The Zero/Span Averaging Time screen allows the user to adjust the
zero/span averaging time. The zero/span averaging time is used by the
Time
analyzer only when performing an automatic zero or span check. The
analyzer's averaging time is used for all other functions. The following
averaging times are available: 1, 2, 5, 10, 20, 30, 60, 90, 120, 180, 240,
and 300 seconds.
In the Main Menu, choose Calibration > Zero/Span Check >
●
Zero/Span Avg Sec.

ZERO/SPAN AVERAGING TIME:

CURRENTLY:
RANGE
Zero and Span Calibration Reset are toggle items that change between yes
or no when selected, and are displayed only if Auto Calibration is set to
Reset
YES in the Instrument Configuration screen in the Diagnostics menu.
If the zero calibration reset line is set to yes, then not only is a zero check
done, but a zero adjustment is made. If the span calibration reset line is set
to yes, then not only is a span check done, but a span adjustment is made.
(This is how to set up a scheduled, recurring auto calibration.)
The Zero/Span Ratio screen is used to set the ratio of zero checks to span
checks. 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 three zero checks between
each 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.
ZERO/SPAN RATIO:
CURRENTLY:
RANGE
SET TO:

CHANGE VALUE
SAVE VALUE
AVG DIAGS ALARM
SET TO:
 CHANGE VALUE
SAVE VALUE
AVG DIAGS ALARM
60 SEC
90 SEC ?
1:1
2:1 ?
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