I’ve got a script on the one RB433AH that keeps an eye on the temperature.
The power supply is quite a nice unit that has 220V input and 1 x 12V and 2 x 28V outputs. I use the 12V output to drive a couple of fans and I use the one 28V output to drive the RB433Ah that has two R52H cards with large antennae.
It’s very hot out here at the moment. The temperature in the loft where the equipment is located was in the high 40’s / low 50’s this afternoon.
My voltage report shows that the hotter it gets up there, the lower the output voltage from the PSU. The PSU is being fed clean power from an APC SmartUPS 650 that has batteries that are less than a month old. The UPS sits in an air conditioned room and the 15m of power from the UPS to the PSU is via 2.5mm cable (that’s more than thick enough, considering they only use 1.6mm cable for lights).
Is this just the ambient temperature affecting the PSU?
Is this PSU on the verge of dieing?
Is there anything I should be worried about?
Daily voltage report for Cape-Connect_******_1 on feb/24/2009
23:00 = 26.8
22:00 = 26.7
21:00 = 26.7
20:00 = 26.7
19:00 = 26.7
18:00 = 26.6
17:00 = 26.5
16:00 = 26.5
15:00 = 26.5
14:00 = 26.6
13:00 = 26.6
12:00 = 26.8
11:00 = 26.9
10:00 = 26.9
09:00 = 26.9
08:00 = 26.9
07:00 = 27.0
06:00 = 27.0
05:00 = 27.0
04:00 = 27.0
03:00 = 27.0
02:00 = 26.9
01:00 = 26.9
00:00 = 26.9
Since voltmonitor started on 21:00:00 feb/23/2009 Maximum = 27.0v at 03:00:00 feb/24/2009 Minimum = 26.5v at 15:00:00 feb/24/2009
