<Start-up and Safety Precautions>
15
IM 12F05B10-01EN 2nd Edition : June 01, 2021-00
3. Operation
Before starting an operation, follow the next procedure.
(1)
Check piping and wiring are all correctly provided.
(2)
Set up the beads in the flow cell.
(3)
Polish the measurement electrode.
(4)
Run water and check that there is no water leakage.
(5)
Turn on the power and set to Maintenance mode.
(6)
Configure parameters on the converter and sensor unit.
(7)
Confirm the reading is stable. Perform Zero/Span calibration.
(8)
Switch to a measurement mode. Start a regular measurement.
Refer to IM 12F05B10-02EN for details.
4. Maintenance
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Periodic maintenance
When you must open the front cover and/or glands, make sure that the seals are clean and
correctly fitted when the unit is re-assembled in order to maintain the housing’s weatherproof
integrity against water and water vapor.
The pH measurement uses high impedance sensors (glass electrode). Keep the moisture out of
the converter inside.
CAUTION
Never use harsh chemicals or solvents. If the instrument does become heavily stained or
scratched, you may need to replace some parts. Consult Yokogawa.
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Fuse
There is a circuit board mounted fuse protecting the instrument. If a fuse blows soon after the
change, contact Yokogawa.
