Zero/Span Check - Thermo Scientific 49i Instruction Manual

Zero/Span Check

Thermo Fisher Scientific
The O span coefficient is calculated, stored, and used to correct the current
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O reading. For more information about calibration, see Chapter 4,
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"Calibration".
It is important to note the averaging time when calibrating. The longer the
averaging time, the more precise the calibration will be. For the most precise
calibration, use the 300-second averaging time. For more information about
calibration, see Chapter 4, "Calibration".
• In the Main Menu, choose Calibration > Cal O
• Use and
• Use and
• Press to calculate and save the new coefficient based on the
entered span concentration.
CALIBRATE O3:
O3:
SPAN CONC:
CHANGE VALUE
RANGE AVG
The Zero/Span Check menu is available with the sample/cal valve option. 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.
to move the cursor left or right.
to increment or decrement the numeric value.
803
00000804 ?
MOVE CURSOR
SAVE
DIAGS ALARM
Operation
Calibration Menu
Coef.
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Model 49i Instruction Manual 3-23