Greenlee 5778 Operation, Service And Parts Instruction Manual page 7

Resistance to Ground Test
1. Connect the red test lead to a ground
such as the frame of the device to be
checked.
2. Connect the black test lead to the
circuit.
3. Turn the hand crank approximately
2-1/2 to 3 turns per second and read
the display.
Resistance Between Wires Test
1. Connect the test leads to the
conductors.
2. Turn the hand crank approximately
2-1/2 to 3 turns per second and read
the display.
To Determine the Insulation
Resistance:
• 250-volt range: Tester Reading x .5 =
• 500-volt range: Tester Reading =
• 1000-volt range: Tester Reading x 2 =
4455 Boeing Dr., Rockford, IL 61109-2988 815/397-7070
5778 Megohmmeter
Resistance in Megohms
Resistance in Megohms
Resistance in Megohms
7