Features:
- Measures insulation (MΩ), Continuity (Ω) and AC voltage
- Three insulation test voltages(DC V) : 250V, 500V, 1000V
- 3-1/2 digital LCD (2000 counts)
- 68 x 34 mm. (2.677" x 1.338") large LCD display
- Automatic circuit discharge
- Test insulation at rated voltage into a 1 mA load
- 210 mA short circuit testing current for continuity
- External voltage warning indication
- Fuse protection
- BS 16th edition
Insulation
Every electrical apparatus and installation need to be safe for the user and for the equipment itself. Electrical conductors of electricity need to be insulated from each other, so that they do not create electrical hazard or unnecessary consumption. Badly insulated circuits can create leakage current which can be dangerous and trip your GFCI, RCCB or ELCB. Each country regulate those levels at which the insulation in acceptable. Generally, Insulation resistance measurements are done between each conductor and the earth, and between each conductors.
Continuity
Checking the continuity of wires, complete circuits, connections, closure of contacts, circuit breakers, fuses, bounding resistance of connections, etc... are all very important.