ITech IT-M3900C Series User Manual page 93

•
How to recall this waveform from menu (take 12V system as an example):
1. Press the composite keys [Shift]+[I-set] (Function) on the front panel to en-
2. Use the knob to select 3.Road-Vehicles = Off and press [Enter].
3. Press the Left/Right key to select ISO16750-2 and press [Enter] to confirm.
4. Press the Left/Right key to select Starting-Profile, and press [Enter] to
5. Press the Left/Right key to select 12V, and press [Enter] to confirm.
6. Press the Left/Right key to select the Level (i.e. 4), and press [Enter] to
7. Press [On/Off] on the front panel to turn on the output.
8. According to the selected trigger method (same as the trigger method of the
Load Dump Dynamic Behavior
This test is a simulation of load dump transient occurring in the event of a dis-
charged battery being disconnected while the alternator is generating charging
current with other loads remaining on the alternator circuit at this moment.
•
•
Standards for 24V system:
ter the function menu.
confirm.
confirm.
The interface returns to the main interface of the system and displays
STARTING-PROFILE.
LIST function), for example, press [Shift]+[On/Off](Trigger) to trigger the
output of the waveform.
The amplitude of load dump is determined by the rotational speed of alterna-
tor and the strength of magnetic field in the case of disconnection of the
battery.
The pulse duration of load dump is mainly determined by the time constant
and pulse amplitude of the excitation circuit.
Copyright © Itech Electronic Co., Ltd.
Power Supply Function
82