Munin contributed plugins

graph_title Power Draw in Amps

graph_args --lower-limit 0

graph_vlabel Amps

graph_scale no

graph_info This shows the amperage drawn on your PDU. Per NEC, a PDU should not sustain 80% of its maximum circuit capacity for more than three hours.

graph_title Power Factor

graph_args --lower-limit 0

graph_vlabel Power Factor

graph_scale no

graph_info Power factor represents the efficiency of the components connected to the circuit. Power factor declines as components age, increasing the overall load on the circuit.

graph_title Crest Factor

graph_args --lower-limit 0

graph_vlabel Crest Factor

graph_scale no

graph_info Crest factor relates the peak value of a signal to its root mean square value. For three-phase AC, a crest factor of 1.732 is expected. Low crest factor may indicate UPS overclipping and crest factors over 5 degrade monitoring accuracy.