58
INZ-TN2ZRE-E
6.8.2 span calibration
It is used to perform a span point adjustment. Supply calibration gas with concentration set to the
span value to perform the span calibration. For the span calibration gas for the NO
X
, SO
2
, CO
2
,
CO measurement, use the standard gas with a concentration of 90% or more of the range value.
For the span calibration gas for the O
2
measurement, use the standard gas with a concentration of
90% or more of the range value when measuring with the built-in O
2
sensor, and use the standard
gas of about 2 vol% when measuring with an external zirconia O
2
sensor.
When “both” from “Calibration Range” of the
Calibration Setting mode is set, span calibra-
tion is performed together with 2 Ranges.
Caution
To close the “Span Calibration” or cancel
this mode midway, press the key.
A previous screen will return.
To close "Span Calibration"
ESC
(1) Press the
SPAN
key on the Measurement
screen to display the Manual Span Calibra-
tion screen.
(2) Select Ch (component) to be calibrated by
pressing the or the key and press
the
ENT
key. The calibration gas is supplied.
ENT
ENT
( )
ENT
SPAN
to Measurement screen after
executing Manual span Calibration
(3) Wait until the indication is stabilized in the
state where the calibration gas is supplied.
After the indication has been stabilized,
press the
ENT
key. Span calibration of
Range selected by the cursor is performed.
Note: For the Ch (component) for which
“AR” is selected in “6.1.1 Setting
range switch mode,” the cursor
automatically moves to the range
selected in “Setting of auto cali-
bration component/range” (6.2.4),
and calibration is carried out
within that range.
