Yokogawa IR400 - Manual (Page 47)

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IM 11G02N01-01E
(5) On the “calibration range selection”
screen that appears, select “both” or
“current” by pressing the
or the
key.
• If “both” is selected, zero or span
calibration is performed with Range 1
and Range 2 of the selected Ch
interlocked.
• If “current” is selected, zero or span
calibration is performed only for the
range displayed when calibration of
selected Ch is performed.
Press the
ENT
key after the selection, and
the specified calibration is performed.
To perform calibration for “both,” set the same calibration gas concentration for both
ranges.
Note
When setting NOx and CO to “both”
Two cursors will appear in both ranges (Ch1 and Ch4).
Manual Calibration screen
( )
ENT
End of Calibtation Range Setting
Ch1
NOx
Ch2
SO 2
Range 1: 0 to 100 ppm
Range 2: 0 to 2000 ppm
Range 1: 0 to 100 ppm
Range 2: 0 to 2000 ppm
both
current
Ch1: Range 1 and Range 2 are calibrated together with zero and span calibration.
Ch2: Only currently displayed range is calibrated with zero and span calibration.
Example
To close “Setting of Calibration Range” or
to cancel this mode midway, press the
ESC key. A previous screen will return.
To close “Setting of Calibration Range”
ESC