Diagnosis of problems with Turbidity/Chlorophyll sensor

[This post includes a slightly edited copy of an email update from David Benavente, and is back-dated to the date of that email on August 20th, 2013.]

Background:  the PacIOOS CTD had been redeployed with the rest of the station electronics on April 30th, 2013, but its turbidity and chlorophyll sensors (part of an integrated SeaBird unit collectively known as a FLNTUS) did not appear to be working properly.  PacIOOS had requested that the Saipan team remove the FLNTUS on their next monthly maintenance visit, but on August 2nd as described in this update they ended up removing the entire CTD/FLNTUS package instead.

A few weeks later David Benavente provided the following update:

I got a hold of a multimeter and checked the continuity of the the FLNTUS cable. and 2 out of the 4 wires have continuity. port 2 and 4 didnt have continuity while port 1 and 3 were fine. So I guess we we could send you the FLNTUS cable and redeploy the CTD. If thats okay.

PacIOOS CTD removed from station

[This post is a copy of an email update from Steven Johnson, and is back-dated to the date of that email on August 7th, 2013.]

Background:  an analysis of the station's data reveals that the PacIOOS CTD was disconnected at about noon on August 2nd, 2013, Chamorro time.  On August 7th, Steven writes:

We retrieved the entire CTD. Conditions were tricky that day with lots of wind and rain so that was a quicker fix for the guys. More detailed report to come shortly.