YOKOGAWA OX100, Руководство пользователя

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<3. Operation>
3-2
IM 11M10A01-01E
3.1.2 When Measuring on 0 to 1000 ppm O
2
Range
CAUTION
Before taking measurements on the 0 to 1000 ppm O
2
range, calibrate with 1000±100 ppm
O
2
/N
2
standard gas.
(1) Immerse sensor in 1000±100 ppm O
2/
N
2
.
(2) Press [Mode] key three times, and confirm that “1000 ppm” lamp is lit.
(3) Press [^] [v ] keys to set standard gas concentration.
(4) Press [ ENT ] key.
This completes span calibration, and the instrument switches to measure mode. You can calibrate
with standard gas in the range 700 to 1300 ppm O
2
. If the alarm lamp lights for 2 sec. when you
attempt calibration, replace the sensor (part no. K9424BA).
CAUTION
• Ideally you should use 1000±100 ppm O
2
/N
2
standard gas for calibration.
• Gas flow should be between 800 and 1200 ml/min.
• Yokogawa offers a 1000 ppm O
2
calibration kit as an option (part no. K9424JA).
Example
FAIL
ENT.
4-20mA
ppm
AIR
%
1000ppm
MODE
SET
ALM
Example
Standard
gas
Pressure
reduction
valve
Flow
meter
F3.1E.EPS
3.1.3 Setting Error Display
(Display example for 1000 ppm calibration)
ALM FAIL
SET AIR 1000
ppm
4-20
mA
ppm
%
F3.2E.EPS
If the gas concentration is out of limits for calibration, the Alarm lamp lights for 2 sec., and the
instrument displays an error code and remains in Calibration mode.
4th Edition : Oct. 23, 2019-00