43
7.4
Recommended Preventative Maintenance Schedule
7.4.1 Monthly
a.
Flush the sample cell and the wet-end of the analyser by momentarily removing the
sample flush plug (Refer to Figures 2 and 4; 3).
b.
Check the calibration of the analyser by independently measuring the incoming sample
and noting the residual reading at the time of the sample removal. In some
applications, more frequent calibration may be required.
c.
If the reading on the analyser does not match the measured sample, re-calibrate the
analyser per section 3.4.
7.4.2 Yearly
A service kit is available (Severn Trent Services part number SK105-D or 10-1025):
Part Number
Qty Description
US UK
Reference Figure
1
Copper Electrode
14182
09-1032
Figure 3
1
PVC cleaning spheres (x100)
R-5941
35-1006
Figure 3
1 O-ring (around sample cell
assembly)
OV11038
17-1030
Figure 4; 8.
1
O-ring (for around the copper
electrode)
OV11032
17-1032
Figure 4; 10.
1
O-ring (for the base of the sample
cell assembly)
OV11136
17-1031
Figure 4; 9.
2
O-ring (for the flush plug)
OV11011
17-1028
Figure 4; 6.
2
O-ring (for the cable connection
on the copper electrode)
OV11006
17-1029
Figure 4; 7.
1
Flush plug
OV11006
07-1083
Figures 2 and 4; 3.
a.
Depending on the incoming sample conditions, disassemble the analyser by turning off
the incoming sample, removing power to the analyser and removing the sample cell
assembly (Refer to Figure 3).
b.
The gold electrode (figure 3) can be cleaned and polished with a clean cloth, or may be
soaked in a dilute acid solution (e.g. 10% HCl v/v). See section 7.3.
c.
The copper electrode may be cleaned with a non-metallic scouring pad. The copper
cell may be soaked in a dilute acid solution (e.g. 10% HCl v/v) both before and after
abrasion to maximise the cleaning and performance of the cell. See section 7.3.
d.
Replace copper cell if worn or grooved. It is recommended that the copper electrode
be replaced annually.
f.
Replace PVC cleaning spheres (Figure 3) (Severn Trent Services part number R-5941
or 35-1006).
g.
Replace the reference electrode (Figures 1 and 2) (Severn Trent Services part number
77-1006)
g.
After cleaning, condition the analyser by allowing it to run on chlorinated water for 24
hours.
h.
Calibrate the analyser as per Section 3.4.
Содержание Capital Controls CI1000B
Страница 9: ...9 Figure 4 Flow Cell Assembly The sample tap assembly fig 4 19 is an optional extra...
Страница 16: ...16 Figure 11 Wiring Diagram...
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