Defines an interval value for the repeat of the background based on the
Units selected. This field indicates the delay period; once the specified
amount of time has lapsed the background will automatically run again.
The user can edit this field but some restrictions apply depending on the
Units selected. Default is “1”.
This is where the user can define the type of units for the Repeat delay
period. For example: A Repeat of “1” and Units of “Days” means that a
calibration will automatically run every day at the defined time. Default
is “Days”.
3.4.10 Calibration Menu
Main Menu → Calibration Menu
Calibrating the instrument should be done with care (refer to Section 5 before using these menus).
Figure 52 – Calibration Menu Screen
Depending on the selection in this field, a number of extra menu items
will be displayed. These are separately documented in Manual Mode
(refer to Section 3.4.10.1) and Timed Mode (refer to Section 3.4.10.2).
Select the Cal. Type field and select either Timed or Manual. Timed
mode is an automatic calibration controlled by the:
▪ Interval between cycles
▪ Length of each calibration cycle
▪ Time when the calibration will begin
▪ Check only or automatic compensation
Timed calibration with span compensation enabled does not fulfil U.S.
EPA approval.
Manual mode allows the user to choose the type of calibration they
wish to perform and will open the appropriate valves in preparation
for the user to perform a manual calibration. The setup used will
depend on the Cal. Mode selected. Manual mode is set as default.
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