All replies bump the topic back to the top, and I managed to get a copy of the instructions I asked for, so regardless of how we got there, we got there, and I'm grateful.
I also managed to get hold of a copy of the instructions for the Son of Checkmate. I've put these into a PDF and posted them here if anyone would like a copy http://www.multiupload.com/A0TH3MQOVT
Good news by the way Alarm, the meter is now fully tested and still working well within original spec. Although it had more batteries than I would have guessed (3 x 0.8ah and a single 1.9ah).
These meters, although imho a really handy tool, were just too expensive to be carried by most engineers, even the Son of Checkmate I've seen largely left in the office so it could be shared amongst all the engineers.
I also managed to get hold of a copy of the instructions for the Son of Checkmate. I've put these into a PDF and posted them here if anyone would like a copy http://www.multiupload.com/A0TH3MQOVT
Good news by the way Alarm, the meter is now fully tested and still working well within original spec. Although it had more batteries than I would have guessed (3 x 0.8ah and a single 1.9ah).
These meters, although imho a really handy tool, were just too expensive to be carried by most engineers, even the Son of Checkmate I've seen largely left in the office so it could be shared amongst all the engineers.