Publicidad
Idiomas disponibles
Idiomas disponibles
TESTING INSULATION (see figure 15)
Warning
Make sure the circuit to be tested is dead before taking measurement. Never measure the
insulation resistance of live equipment or circuit. Never touch the circuit after measurement, as
the capacitance to be saved on the circuit may cause electric shock.
Insulation tests should only be performed on dead circuits. Check the fuse before testing.
To measure insulation resistance, set up the Meter as shown in Figure 15 and follow the steps
below:
1. Insert the red short lead with alligator clip in the INSULATION input terminal and the black short
lead with alligator clip in the mA input terminal.
2. Turn the rotary switch to INSULATION position.
3. Press RANGE to select the voltage.
4. Connect the probes to the circuit to be measured. There are two methods to start the insulation
test:
• Press HOLD button to disable LOCK mode. Press and hold TEST to start the insulation test until
TEST button is released
• Press HOLD button to enter LOCK mode. Press TEST once to start the insulation tst until
pressing HOLD or TEST again to release LOCK mode.
5. Push and hold TEST button to start the test, the secondary display shows the test voltage applied
to the circuit under test. The high voltage symbol along with a primary display showing the
resistance in MΩ or GΩ. The TEST icon appears on the lower portion of the display.
6. When releasing the TEST button, LCD will not appear TEST icon. The resistance reading appears
on the primary display until a new test is started or a different function or range is selected.
Caution
The following improper operating procedure may force the Meter to power off automatically.
To avoid the danger of electric shock and damage to the Meter:
• Replace batteries as soon as battery indicator is on. Initiating high voltage when the battery
indicator is on, which may force the Meter to power off.
• Must connect the probe to the circuit being measured before initiating high voltage.
• When under high voltage mode, never turn the rotary switch to other position.
• The testing time of small resistor or short circuit cannot exceed 20 seconds.
• At insulation testing mode with testing voltage initiated, auto power off feature will be disabled until
un-initiating the testing voltage.
Figure 15.Testing Insulation
Publicidad
