MI 3394 CE MultiTesterXA
Single
tests
36
Select the
Discharging Time
function.
Set test parameters / limits.
Connect test leads to the DISCHARGING TIME terminals on the instrument and on the
device under test.
Connect device under test to the mains supply and Switch it ON.
Start measurement.
Measurement is stopped manually by disconnecting device under test mains supply.
Save results (optional).
Figure 4.46: Examples of Discharging Time measurement results (Output = External)
Measuring principle (Output = Socket)
The measuring principle of the Discharging time function is as following:
Phase
The DEVICE UNDER TEST is connected to the mains test socket.The instrument
monitors the mains voltage and internally stores the peak voltage value.
Phase
The instrument disconnects the DEVICE UNDER TEST from the supply and the
voltage at the supply connections starts to fall. Disconnection moment is always at
peak voltage.
Phase
After the voltage drops below the limit value the timer is stopped.
Test circuit (Output = Socket)
Figure 4.47: Discharging Time test (Output = Socket)
