
Getting Started
21
Charge State:
1. Press Charge key to enter charge state.
2. The (-) terminal outputs negative voltage and
charge timer starts.
3. After timer decreasing to zero, the state will be
switched to “Test State”.
4. Press Charge key again to enter “Test State”
directly. The available time will be ignored.
TIP
:
If the charge time set to 0, the charge timer would be closed.
Test State:
If the charge timer closed, press Charge key will enter
TEST STATE.
At TEST STATE, press Charge key to enter
CHARGE STATE again.
TIP:
If you close the power, the value of the parameter you change would be lost, because
of altering the parameter in the test state; the value would be stored in the
discharge .state.
3.5.2 Changing the Parameter
You can change test parameter whether at DISCHAGE STATE or TEST STATE.
Press Param key to switch IR to current testing.
Press the Param key to cut over insulation resistance to leakage current.
In the discharge state, the 2
nd
line displays the limit value which also is the present
parameter.
If you want to measure the Insulation resistance, make sure the first letter of the 2nd
line is“R:”
If you want to measure the leakage current, make sure the first letter of the 2nd line is
“I”.
3.5.3 Rate
The RATE operation sets the integration time of the A/D converter, the period of
time the input signal is measured (also known as aperture). The integration time affects
the usable digits, the amount of reading noise.