Ecotech Serinus 40 - 3.5.11 Calibration Menu

Operation
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3.5.11 Calibration Menu
Calibrating the instrument should be done with care. Refer to Section 5 before using these menus.
Calibration Type
Depending on the selection in this field, a number of extra menu
items will be displayed. These are separately documented in
Sections 3.5.11 and 3.5.12).
Select the Calibration Type field and select either Timed or
Manual. Timed calibration is an automatic calibration controlled
by the:
 Interval between cycles
 Length of each calibration cycle
 When the calibration will begin
 Whether the calibration will perform automatic compensation
Note: Timed calibration with span compensation enabled does not
fulfil U.S. EPA approval.
Manual calibration will perform a manual calibration depending on
the calibration mode selected below.
Zero Source
Select whether the instrument will sample from the external
calibration port or from the internal zero source when zero gas is
requested.
Calibration Port
This is only accessible once the instrument has completed warm-
up. Select whether the instrument will sample from the external
span/zero source (calibration port) or from the optional internal
span/zero source (IZS).
Span Calibrate
This field is used to correct the span calibration setting and should
be used only when a known concentration of span gas is running
through the measurement cell. When the readings are stable,
activate the Span Calibrate field, a window will open with editable
numbers, change the numbers to the NO
x
concentration that the
instrument is receiving and select Accept. The instrument span
calibration has now been set.
Zero Calibrate NO
This field is used to correct the zero calibration setting on the NO
channel. This option should be used only when zero gas is running
through the measurement cell. When this is stable activate the
Zero Calibrate (NO) field, a window will open with editable
numbers. Leave the numbers at 0000.000 and select Accept.