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12. Maintenance
Replacement of the built-in syringe
•
Before replacement, repeat sampling to thoroughly clean up the line system.
•
The interval of replacement depends on the nature of sample or frequency of
measurements.
How to change the syringe:
1) Press down the sample discharging lever all the way,
and remove the syringe cover by pulling it toward you
as illustrated.
2) Turn the syringe 45
°
counterclockwise to release it
from O-ring.
3) Slightly pull the sample drain-out lever toward you to
pull out the syringe from O-ring.
4) Remove the syringe from drain rack, and replace it
with new one.
5) Pull down the drain rack, and insert O-ring, and turn it
clockwise until it stops.
6) After inserting 3 hooks on top of syringe cover into the
main, install the syringe cover.
Replacement of the battery
•
Before replacing the batteries, turn off the power with [on/off] key.
•
The measurement data and parameters are stored in nonvolatile memory. These data
will not be erased even when the batteries are removed.
Cleaning the measuring cell
•
Use a rinsing solution which will not corrode the liquid contact part.
•
If the measured sample is left in the measuring cell or the cell is not well cleaned, the
residue inside may be solidified within the cell or at the contact part with the syringe, and
the cell may be contaminated with stains and dirt. Always clean the system thoroughly
using a rinsing solution after the day’s work of measurements.
(1)
Fill the measuring cell with a rinsing solution using either the attached syringe or a
plastic syringe.
(2)
Leave a rinsing solution for some time if so necessary before draining it out.
(3)
Repeat the steps, (1) and (2), for cleaning more thoroughly.
Press
Drain rack
