Yokogawa DO402 Dissolved Oxygen Analyzer - Manual (Page 71)

IM 12J05D02-01E
Calibration 6-5
6-3-3. Procedure for Water calibration
YES NO
YES NO
YES NO
YES
The instruments waits for
the reading to stabilize.
(The display flashes)
When reading Is stable,
the CAL.END message
appears.
NO YES
NO YES
YES
NO
YES
MEASURE
MAN.CAL
DISPLAY
HOLD
NO MODE YES
ENT
YOKOGAWA
MODE
AIR.CAL
CONTACTS
S1
S2
WASH/S3
FAIL/S4
H2O.CAL
NO YES
YES
Place sensor
in calibration
solution
Press YES for single point
adjustment.
Note: To start calibration
with a zero solution,
press NO (zero
calibration must be
activated in service
code 21).
Transfer to zero
solution and press YES.
When the reading is stable, the CAL END
message appears. Press YES.
After briefly displaying WAIT, the display returns to
the normal readout.
After briefly displaying WAIT, the display
returns to the normal readout.
NO
to *2
to *2
from *2
to *1
from *1
NO
NO
NO NO
If “X.X.1” is selected in Service
Code 51,
the M.PR.ON message will appear
to indicate that the manual
pressure is enabled. Press YES to
proceed.
NO
YES
to *2
to *2
NO