1). Choose “Others” material.
2). Select the Upper or Lower setting value for that material.
3). Press or to increase or decrease the value.
4). Save the new Limit Settings. You will be taken back to the
Measuring Screen.
In the same way, you may change the values for steel, aluminum,
and bronze as well, based on your knowledge about corrosion.
For your reference, Table 1 lists the potential factory setting values
for protected, under-protected, and over-protected conditions for
each type of boat material.
Table 1 - Potential Limit Factory Settings for the Seaguard
Digital Corrosion Tester (Ag/AgCl reference cell - SSC)
Hull Material
Under
protection
Safe Protected
Over
protection
Steel alloys
> -0.800V
-0.800V to -1.050V
< -1.050V
Aluminum alloys
> -0.900V
-0.900V to -1.100V
< -1.100V
Copper alloys
> -0.500V
-0.500V to -0.700V
< -0.700V
Others
> -0.500V
-0.500V to -0.700V
< -0.700V
The “<” symbol means “less than” the given limit, in the negative
direction. The “>” symbol means “greater than” the given limit, in
the positive direction. The default setting is steel.
2.3.6. Taking measurements
Your Potential readings are displayed directly on
the Corrosion Measuring Screen (Figure 6).
To save the current measurement value, press the
left button (Save). A window will appear for you to
confirm that you do want to save, yes or no.
Figure 6 Corrosion
Measuring Screen
Important
– For correct interpretation, note the polarity of the
voltage reading (+ or -).
2.3.7. Reviewing saved data
The example of the Data Review Screen (Figure 7) shows
7
