Amend-6 OVERALL GRAPH 6-27 TO 6-30.pdf

psm

11:00 06/27/22

23:00 06/27/22

11:00 06/28/22

23:00 06/28/22

11:00 06/29/22

23:00 06/29/22

11:00 06/30/22

23:00 06/30/22

Date & Time

275.0

280.0

285.0

290.0

V o lt a g e

V

V1n Max 286.8

V2n Max 287.5

V3n Max 287.6

Data Log View of C:\MYFILES\San Carlos Hospital\PIMC\XRAY 3 POWER SIGHT\PS 7-1-2022\psm.$LO

To: 07/01/22 10:48:08From: 06/27/22 10:16:06

William Hendrix Typewriter This is a graph produced by the power sight metering. I am a little concerned about the sudden drop in voltage (see arrow). The graph shows the maximum voltage from 6-27 to 6/30. I printed out the graph where the arrow points so you can see more. This could be just the utility switching to compensate for less load. I don't know when SRP would do that. The drop in voltage is not all that much. About 4 volts over about 5 minutes. I don't imagine this small change in voltage could have any bad affects on the Xray. You will see there is a similar voltage change that happens late in the evening.

William Hendrix Arrow