TOA-DKK CD-36D - 7. Maintenance; 7.1 Maintenance Items

Model: CD-36D 7.1 Maintenance Items
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7. Maintenance
7.1 Maintenance Items
(a) In order to maintain the function of the Product in good order and to make its performance work, it
is necessary to regularly execute maintenance and inspection work based on the full understanding
about the measuring principle and features of the Product.
(b) Regarding any repair or technical services, please contact DKK-TOA’s sales office or agent since
well-trained engineers qualified by DKK-TOA or equal are in charge and ready to respond to your
need.
【IMPORTANT】 • Make sure to execute the inspection and maintenance on a regular basis.
If not, poor maintenance causes troubles with the system.
(c) The following table shows a guideline about maintenance items and intervals for the Product under
general conditions. Since the maintenance items and interval vary with the measuring conditions
and the nature of the sample, establish the most suitable maintenance program empirically based
on the actual operation of more than several months.
Maintenance Items and Intervals
Item for Maintenance and Inspection Interval
Item Description
1 week 2 weeks 1 month 3 months 6 months 1 year
Reference Section
1 Flow rate of sample
water
・ Check if the flow rate
is normal per setting.
○ “3.3 ② Introduce the sample
water”
2 Cleaning of detector ・ Clean the beads and
the wire mesh on the
tip of the detector.
△ “7.3 Cleaning of Detector and
Replacement of Sensing
Electrode”
3 Inspection of the
sensing electrode
・ Inspect the sensing
electrode and replace if
necessary.
□ “7.3 Cleaning of Detector and
Replacement of Sensing
Electrode”
4 Calibration ・ Execute the span
calibration.
○ “5. (2) Span Calibration”
5 Adjustment of Output
Signal from Transmitter
・ Adjust the output
signal to the displayed
value on the digital
display.
○ “7.6 Adjustment of Output
Signal of the Transmitter”
6 Replacement of Fuse ・ Replace the beads in
the wire mesh on the
tip of the detector.
□ “7.4 Replacement of Beads for
Cleaning”
7 Flow Cell ・ Clean the inside of the
flow cell.
△ “7.5 Cleaning of Flow Cell”
○: Check for any abnormality, execute designated work and make adjustment.
△: Wash and clean designated parts and places.
□: Replace designated parts to maintain good performance of the Product.