Reports until 12:12, Wednesday 20 July 2016
H1 SYS
betsy.weaver@LIGO.ORG - posted 12:12, Wednesday 20 July 2016 (28526)
C&B Desiccant Cabinet RH trends for the last month

Finally, I was able to get the Testo ComSoft5 software downloaded in order to look at the relative humidity logs for the desiccant cabinets in the clean and bake warehouse.  Attached are the plots for the SUS DB1 cabinet and the 3IFO DB4 cabinet.  The trending software plots back to the last time the data was plotted which in this case was last done in June.  I am glad to see that there is a bump in the RH just after the power outage in June since prior months plots are usually ~flatline and suspect.  Also for the last 6 months, one of the RH meters has been hanging out near -0.4% RH which we need to get to the bottom of, but at least the meter reads positive ~20-40% RH when I move it outside, and during the last power outage.
Past monthly plots are in alogs  23049  22277  19413  18826  17611

FYI:

The data logger software ComSoft5 is now loaded on the Contamination Control HP Mini laptop which resides in a bin outside of my office. 

Data is in the file Documents/Desiccant Data/

In the bin are the cables and RH meter boxes/manuals.

The keys to the des cabinets (which are needed to pull out the little RH meter to plug into the computer for data retrieval) are in a variety of places (a central spot is TBD) - however it turns out that all keys work on all 4 cabinet locks in the C&B warehouse.

Non-image files attached to this report