Soo many questions and so little time/knowledge
1) Yes as soon as the monitor is powered up, whether it be from the switchable mains socket or either the power button on the front of the Sony monitor, results in it tripping. It is indescriminate.
2)Have been unable to try the unit as of yet with all BNC's dissconnected. However the BNC at rear of monitor was used with refence to exposed parts during electrical safety testing and passed with flying colours.
3) The Kilo-Ohm reference on the IPSM002-MB (Starkstorm bit of main supply monitoring) has a "resistance to earth setting" of 240 kilo-Ohm. with a "current setting" of 20 amps. This is what has been stated in the commisioning report.
4) Yes I agree, it could well point to an internal mains filter, however, surely this would have shown up in the Metron Electricval safety test, this was carried out with earth leakage current limit of 1000 micro amp(open supply and reverse mains) 500 micro amp(normally closed and norm closed reverse mains), enclosure limits of 500 micro amps and (100 normally closed and reverse mains) as per Default setting by Metron for class one devices IEC60601.1.
So I think not !
4)No the alarm cannot be cleared without unplugging the offending monitor. It is a latchable alarm that has to reset at the main intake (Estates sparkie).
5) Unfortunately I do not have the PAT results but I vaguely recall a limit of 0.5 ohm being entered ( As do not regularly use this bit of kit)
Chris-H
