In-Situ Aquaculture Buoy Manual (purchased after 28 May 2013) - Manual (Page 12)

12
Adjust the Wiper Brush
It is important that the wiper brush be clean and properly adjusted.
1. Remove the lid from the battery box.
2. Remove the red lead from the battery.
3. Rotate the cleaning brush so the bristles face 180 degrees away from the probe tip.
4. Ensure that the brush is aligned with the center of the RDO Classic Sensor cap. If
necessary, use a 3.32 in. Allen hex wrench to loosen the set screw on the brush,
adjust the brush position, and tighten the set screw.
5. Adjust the probe so there is less than 2 mm (1/16 in.) between the probe and the
back end of the cleaning brush. The probe must not touch the back of the brush.
Figure 4.8 Brush adjustment measurement
6. Twist the PVC compression fitting until the probe is securely in place. The probe
might move toward the brush when the fitting is tightened.
Figure 4.9 RDO Titan Probe installed in the buoy
7. Reattach the red lead to the battery terminal. The brush rotates when power is
reconnected. Observe the rotation.
The back end of the brush must not touch the sensor, but the front
end of the brush must be close enough to wipe squarely across
the sensor. Make sure there is no more than 2 mm (1/16 in.)
between the back end of the brush and the sensor. Readjust if
necessary.
8. Replace the battery box lid.