Operation
Calibration Menu
Thermo Fisher Scientific
Model 42
i
Trace Level Instruction Manual
3-23
The Zero/Span Check menu is available with the zero/span valve option
when in NO or NO
x
measurement modes. It is used to program the
instrument to perform fully automated zero and span check or adjustments.
Total Duration Hour is the sum of zero, span, and purge duration minutes.
Zero and Span Calibration Reset are toggle items that change between yes
or no when selected, and displayed if auto calibration is installed.
●
In the Main Menu, choose Calibration >
Zero/Span Check
.
ZERO/SPAN CHECK:
>NEXT TIME 01Jan05 12:00
PERIOD HR 24
TOTAL DURATION HR 2.5
ZERO DURATION MIN 30
SPAN DURATION MIN 30
PURGE DURATION MIN 30
ZERO/SPAN AVG SEC 60
ª
RANGE AVG DIAGS ALARM
ZERO CAL RESET OFF
SPAN CAL RESET OFF
ZERO/SPAN RATIO 1
The Next Time screen is used to view and set the next zero/span check date
and time. Once the initial zero/span check is performed, the date and time
of the next zero/span check is calculated and displayed.
●
In the Main Menu, choose Calibration > Zero/Span Check >
Next
Time
.
The Zero/Span Period Hours screen defines the period or interval between
zero/span checks. Periods between 0 and 999 hours are acceptable. To turn
the zero/span check off, set the period to 0.
Zero/Span Check
Next Time
Period Hours
NEXT DATE AND TIME:
19 MAR 2005 12:34
PRESS
§
TO EDIT
RANGE AVG DIAGS ALARM
NEXT DATE AND TIME:
19 MAR 2005 12:34:56
SETTING: DAYS
¨
SET MONTHS
©ª
CHANGE VALUE
SAVE VALUE
RANGE AVG DIAGS ALARM
