</li>
</ol>
<center>
<div class="noprint" style="float:center;margin-right:10px">
{| border="1" class="wikitable"
|}
</div>
</center>
If the optical signal is low, check to make sure:
<center>
<ul>
<li>
</li>
</ul>
</center>
==== Probe Optimization ====