Ok last summer, stored in an outbuilding over winter , got down to -15 deg C
southern England last December.
Now one channel shows protect LED on . What does DOT (TM) accronym? stand
for ? and anyone any inkling what would be most ssceptible to
cold/condensation? Nothing seems amiss cold testing on that channel, not
powered up , monitored , yet. I have a schematic for it, a lot of socketed
op amps in that area, so changing them and the sockets would be a good
start methinks.