Fig 3-2 33501 Series High Power Electronic Load - Prodigit 33501 Series Operation Manual

3-2 PRODIGIT
3.1.1 33501 60V/240A，2400W DC ELECTRONIC LOAD
It indicates the model number and specifications of 33501 series electronic load.
3.1.2 NG Indicator
When the reading of Vmeter, Ameter, and Watt meter exceeds the upper or lower
limit set, this indicator will display.
3.1.3 MODE and CC, CR, CV, CP Indicator
There are four operating modes can be selected by press the " MODE " key on the
33501 series Electronic Load.
The sequence is Constant Current ( CC ), Constant Resistance ( CR ), Constant
Voltage ( CV ), Constant Power ( CP ) and then repeat while press the" MODE " key,
the CC, CR, CV, CP mode LED will be lit respectively when the appropriate operating
mode is selected.
There are two programming ranges in Constant Current and Constant resistance
mode respectively; the 33501 series can adjust to the best fit range automatically
according to the programmed load level. The rule is described below:
3.1.3.1
3.1.3.2

Fig 3-2 33501 Series High Power electronic load

In Constant Current mode: (example of 33501)
The Range I (24A) indicates low load current operating range, Range II
(240A) indicated high load current operating range, the detail specification
of range load current is listed on the Table 1-1, the current range is
changed automatically in accordance to the programmed load current.
The range 1 is selected automatically if the programmed load current is
less than the maximum current of range 1 (24A), and will set to range II
automatically when the programmed current is higher than the maximum
current of range 1 (24A).
In Constant Resistance mode:
Range I indicates low load resistance operating range, Range II indicates
high load resistance operating range, the detail resistance range
specifications is shown in table 1-1. The resistance range is changed
automatically in accordance to the programmed load resistance.
The 33501 Series electronic load will set to range 1 automatically if the
programmed load resistance is higher than the minimum load resistance of
range 1, and will set to Range II when the programmed load resistance is
lower than the minimum load resistance of range 1.