Frequently asked questions


Why does my 9083P tester show open circuit when connected to a circuit?

It is likely that you are using the wrong leads. With the 9083P Insulation & Continuity uses the red and black leads. The fact that you may be testing live to earth is irrelevant. You simply connect the red and black leads from the tester to your live and earth on the supply under test. Please be advised this is a dead test and mains voltage must not be present.