Frequently asked questions

Why do I get inconsistent readings using a non-trip loop tester?

All modern loop testers use a low current to prevent tripping the RCD. This achieved in various ways but usually at 15mA. Mains noise can have an effect on readings with such a small current. You may experience variable results or a longer time in obtaining a reading. The only way to guarantee an accurate result each time is to use a higher test current.
To see the 9083P high current method click here.

See PDF for instructions. Download here.