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Calibration
Zero/Span Schedule
4-26
42iQTL Instruction Manual
Thermo Scientific
The Zero/Span Schedule is used to program the instrument to perform
fully automated zero and span checks or adjustments.
Home Screen>Calibration>Zero/Span Schedule
Home Screen>Calibration>Zero/Span Schedule>More
The Next Time button is used to view and set the initial date and time (24-
hour format) of the zero/span schedule. Once the zero/span schedule
begins, the date and time of the next zero/span schedule is calculated and
displayed.
The Period button defines the period or interval between zero/span
schedule. Periods between 0 and 999 hours are acceptable. To turn the
zero/span schedule off, set the period to 0.
The Zero Duration button defines how long zero air is sampled by the
instrument. The Span and Purge Duration buttons look and function the
same way as the zero duration button. The span duration button is used to
set how long the span gas is sampled by the instrument. The purge
duration button is used to set how long the purge period will be after doing
Zero/Span
Schedule
Next Time
Period
Zero/Span/Purge
Duration Minutes
Summary of Contents for 42iQTL
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