YSI ADV6600 - Manual (Page 136)

Section 10. Care, Maintenance, and Storage
ADV6600
Y S I
Environmental
Page 126
Within the United States, it is recommended to use an anti-fouling paint called Interlux Tri-Lux II
for coating the ADV sensor. This paint contains a biocide, a copper derivative, which allows its use
on all metals; see contact information for the manufacturer below.
Courtaulds Coatings
2270 Morris Avenue
Union, NJ 07083 USA
Phone: (908) 686-1300
Fax: (908) 686-8545
Internet: www.yachtpaint.com
Normal anti-fouling paints, which use cuprous oxide based biocides, cannot be used on some metals
as they cause galvanic corrosion. Outside the United States, anti-fouling paints containing TBT can
be used on metal systems with a suitable primer.
When painting metal parts, a suitable conversion layer must be applied to the metal for adhesion and
to isolate the metal from the anti-fouling paint. Interlux 360 Underwater Metal Primer (same
manufacturer as above) is suggested. The primer should be applied to all exposed metal surfaces
except sacrificial zinc anodes. Then follow with an application of the anti-fouling paint to all
surfaces of the sensor that require protection except sacrificial zinc anodes.
Apply only one coat of anti-fouling paint to the transducers. Each layer causes some loss in signal
strength and multiple layers can potentially affect system performance. Ensure that the paint has a
smooth, even surface with no air bubbles.
10-1.3. Conductivity/Temperature Probe
The process of painting the 6560 temperature/conductivity probe will be slightly more tedious than
the process for doing so to the other probes. The outer body of the probe should be painted from
above the stainless steel nut to the top of the probe. However, do not allow the paint to get on the
stainless steel nut or on the shaft that retains the nut on the probe body. Also, do not allow the paint
to touch the temperature probe.
Warning! DO NOT allow paint to run or drip onto the
conductivity electrodes within the two small holes of the
conductivity cell! If paint should get onto the electrodes,
the probe will malfunction!
The next step is to paint the inside of the conductivity
cell. Again, extreme care must be taken not to get paint
on the electrodes themselves! A thin coat of paint should
be applied onto the inner wall of the two small holes that
comprise the conductivity cell. However, painting the inside of the conductivity cell will slightly
change the volume of the cell and thereby negate any previous calibration. Therefore, after you