Amprobe AMB-50 Panduan Pengguna - Halaman 12

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4. Insert the red test lead into the LINE input terminal and the black test lead into GUARD

input terminal.

5. Connect the red and black alligator clip to the circuit to be measured, negative voltage

output from LINE terminal.

6. Choose below insulation resistance measurement mode.

a) Continuous Measurement

• Press TIME button to select continuous measurement mode, there is no timer icon on the

LCD.

• Press

and

hold TEST button for 1 second to carry out continuous measurement. Output

insulation resistance testing voltage, TEST button light up,

• Press TEST button to close the insulation resistance measurement voltage when

measurement is completed. TEST button lights off,

insulation resistance measurement value.

b) Timed Measurement

• Press TIME button to select timed measurement mode, the LCD displays TIME 1 and

symbols.

• Press

and

buttons to set the time (00:10~15:00). Within 1 minute, the time increment

or decrement by every 5 seconds. Afterward, the time increment or decrement by every 30

seconds.

• Then press and hold TEST button for 2 second to carry out timed measurement. TIME 1 and

are displayed and blinked on the LCD on every 0.5 seconds.

• When the set time is reached, the insulation resistance measurement voltage will be

closed and the measurement will be automatically stopped. The LCD displays the insulation

resistance reading.

c) Polarization Index (PI) Measurement

• Press TIME button to select timed measurement mode, the LCD displays TIME 1 and

symbols.

• Press

and

buttons to set the time (00:10~15:00). Within 1 minute, the time increment

or decrement by every 5 seconds. Afterward, the time increment or decrement by every 30

seconds.

• Press TIME button again. TIME 2, PI and

• Press

and

buttons to set the time (00:15~15:30). Within 1 minute, the time increment

or decrement by every 10 seconds. Afterward, the time increment or decrement by every 30

seconds.

• Then press and hold TEST button for 2 seconds to carry out timed measurement.

• TIME 1 and

are displayed and blinked on the LCD on every 0.5 seconds before TIME 1 set

time is reached.

• TIME 2 and

are displayed and blinked on the LCD on every 0.5 seconds before TIME 2 set

time is reached.

• When the two set time are reached, the insulation resistance measurement voltage

will be closed and he measurement will be automatically stopped. The LCD displays the

polarization index reading.

• Press

to set through the polarization index, TIME 2 insulation resistance reading and

TIME 2 insulation resistance reading

disappears. The LCD shows the current

symbols appear on the LCD.

blinks on every 0.5 seconds.