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Zero calibration
This is used for adjusting the zero point.
Flow the zero gas and wait until the indication stabilizes.
When the Zirconia O
2
analyzer is used, use air as the zero
gas. Note1)
When the indication has stabilized, select the measuring
range to be calibrated by using the keys.
When using a multi-component analyzer, undergo
zero calibration at the selected range and component.
Note 2)
Press the ZERO key, and ZERO key lamp will flash.
After the indication is stabilized, press the CAL key
and conduct zero calibration.
The CAL key lamp lights steadily during calibration.
The calibration is completed when the key lamp goes off.
After the calibration, it is reset in measurement mode.
Calibrate other ranges as necessary.
Density below zero (indicated by a minus symbol) is displayed as zero.
This function is released by pressing ZERO key.
Note 1: When using gas separately for low and high ranges, apply 9 to 10 vol% O
2
/N
2
which has
been set for low range.
Note 2: Calibration component should be set in zero calibration select mode.
Note 3: After zero calibration, change the range (2-range meter only) to confirm zero point of both
ranges being calibrated. When the indication of each range is not “Zero”, set S.CAL mode
to “0” and calibrate the zero point once again.
After it is calibrated, set S.CAL mode to “1”.
CAL
SPAN
ZERO
ENT
CAL
SPAN
ZERO
ENT
CAL
SPAN
ZERO
ENT
Flashes
NO
NO
ZERO
NO
CAL
Lights steadily
(The lamp goes off after calibration)
CAUTIONS
