Rapitest Socket Tester (Part 2)

The socket tester with 3 neon indicators is demonstrated with the faults listed on the front of the device, and some other combinations which give very misleading results.

Part 1 showing the internals: http://youtu.be/87Y5X9wfxQM

With 3 terminals and 4 possible states for each (L,N,E,None), there are 4x4x4=64 possible combinations.

3 wires connected LNE, LEN, NLE, NEL, ELN, ENL

2 wires connected LN-, L-E, -NE, LE-, L-N, -EN NL-, N-E, -LE NE-, N-L, -EL EL-, E-N, -LN EN-, E-L, -NL

1 wire connected L--, -L-, --L N--, -N-, --N E--, -E-, --E

All 3 terminals same LLL, NNN, EEE, ---

2 terminals L LL-, L-L, -LL LLN, LNL, NNL LLE, LEL, ELL

2 terminals N NN-, N-N, -NN NNL, NLN, LNN NNE, NEN, ENN

2 terminals E EE-, E-E, -EE EEL, ELE, LEE EEN, ENE, NEE ... https://www.youtube.com/watch?v=GSDBVsViwh0