EC9830 CO ANALYZER OPERATION MANUAL
2-14 98307600 Rev. C-1
2.4.4 Analyzer Calibration Instructions
Note
This procedure is a quick guide to single point span
calibration of the EC9830 analyzer. For complete
gas preparation and multipoint calibration
instructions, refer to the multipoint calibration
procedure in Chapter 3.
1. With a stable supply of calibration gas connected to the Auxiliary port of the
analyzer, verify that in the CALIBRATION MENU, CALIBRATION is set to
MANUAL and CAL. MODE to SPAN.
2 From the primary screen start the calibration sequence by pressing either the
Up or Down arrow ( or ) until the display prompts START MANUAL
CALIBRATION. Pressing the <Select> key will allow you to choose from: NO,
SPAN or ZERO. Confirm that the display reads SPAN and press <Enter> (↵).
A backlit cursor will be displayed on the CO concentration display.
3 Use the <Select> key to move the position of the backlit cursor, and the Up
and Down arrow keys to increment and decrement the value of the backlit
digit until the span calibration gas concentration value is displayed. When the
desired concentration is displayed, press <Enter>.
4 Then move the backlit cursor to the INSTRUMENT GAIN field. The instrument
gain is automatically calculated by the analyzer. Press <Enter> to confirm this
value. Press <Exit> to return to the primary screen.
5 The concentration on the primary screen should now read the same as the
concentration of the calibration gas.
Note
The auto-zero function of the EC9830 eliminates
the need for a traditional zero calibration.
This completes the span calibration of the EC9830 analyzer.
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