Reports until 14:09, Tuesday 11 June 2019
H1 PEM
jeffrey.bartlett@LIGO.ORG - posted 14:09, Tuesday 11 June 2019 (49819)
Dust Monitor Vacuum Pump & HEPI Pump Station Check (FAMIS #12989)
   Checked the dust monitor vacuum pumps and the HEPI pump stations at both ends and the corner station.
 
   Dust Monitor Vacuum Pumps - Made slight adjustments in the vacuum pressure on all three pumps. The temperatures, while all were within specifications, they were a bit high at End-X. The pump housing and exhaust temps were a few degrees above 150f. This is not an issue, but will be if the temps continue to rise. Will watch for a trend developing. 

   HEPI Pump Stations: All three HEPI pump stations fluid levels had not changed since the last check. I noted no leak or drips that Hugh had not all ready flagged and put absorbent pads down. 

   The station levels are:  End-X - 8 9/16", no change from last check
                                        End-Y - 9 0/16". No change from last check
                                        CS - 6 9/16". Up 1/16" from last check. 

   Closing FAMIS #12989.