ITech IT6000C Series User Manual page 95

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How to recall this waveform from menu (take Test A 12V as an example):
1. Press the composite keys [Shift]+[I-set] (Function) on the front panel to en-
2. Use the knob or press the Up/Down key to select 3.Road-Vehicles = Off
3. Press the Left/Right key to select ISO16750-2 and press [Enter] to confirm.
4. Press the Left/Right key to select Load-Dump, and press [Enter] to confirm.
5. Press the Left/Right key to select Test A, and press [Enter] to confirm.
6. Press the Left/Right key to select 12V, and press [Enter] to confirm.
7. Set the Td and Un in turns, and press [Enter] to confirm.
8. Press [On/Off] on the front panel to turn on the output.
9. According to the selected trigger method (same as the trigger method of the
4.6.3.3 42V Road Vehicles — Electrical and Electronic Equipment for
a Supply Voltage of 42 V — Electrical loads
A test wave completely conforming to International Standard ISO21848 is built
inside the device, which can be used for the test of Electrical and electronic
The internal resistance of an alternator, in the case of load dump, is mainly a
function of alternator rotational speed and excitation current.
The internal resistance, Ri, of the load dump test pulse generator shall be
obtained from the following relationship.
– U : The specified voltage of the alternator
nom
– I : The specified current at an alternator speed of 6000r/min
rated
– N : The actual alternator speed, unit: round per minute (r/min)
act
The pulse is determined by the peak voltage U
the internal resistance R
of U are correlated with small values of R
n
high values of R and t
i
ter the function menu.
and press [Enter].
The interface returns to the main interface of the system and displays
LOAD-DUMP.
LIST function), for example, press [Shift]+[On/Off](Trigger) to trigger the
output of the waveform.
Copyright © Itech Electronic Co., Ltd.
, and the pulse duration t
i
i
. For the test voltage U
d
Power Supply Function
, the clamping voltage U
n
; in all cases small values
d
and t , and high values of U
d
please refer to ISO16750-1.
A
,
S
with
n
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