Constant Resistance Operation Mode (Cr) - ITech IT8800 Series User Manual

3.2.3 Constant resistance operation mode (CR)

Under CR mode, the electronic load is equivalent to a constant resistance (as
shown below) and will give linear change of current with input voltage change.
As shown in Fig. 3-3.
Load voltage
Fig. 3-3 Voltage-Current Relation Schema under CR Mode
Under CR mode, the electronic load provides three ways to modify constant
resistance.



Operation steps
1.
2.
3.
4.
5.
If the above method is for editing auto test step (as mentioned below), constant
voltage range can also be set.
V
Load current
CR Mode
Rotate adjusting knob to set constant resistance value.
Use numeric keys to input resistance value and press [Enter] key to
confirm set constant resistance value.
Use moving cursor and press
corresponding positions.
Press [CR] key and [Shift] +[CV] to enter parameter setting screen.
Constant Resistance
Range=7500.0Ω
Set maximum working resistance value and press [Enter] for confirmation.
Constant Resistance
Range=2000.0Ω
Set maximum voltage value and press [Enter] key.
Constant Resistance
High=130.0V
Set minimum voltage value and press [Enter] key.
Constant Resistance
Low=0.000V
Complete parameter setting.
10.0000V 0.0000A
0.00W CC=2.000Ω
NOTE
If the above method is for editing auto test step (as mentioned below), constant
resistance range can also be set.
Copyright © ITECH Electronic Co., Ltd.
Function and Features
Set resistance value
= voltage / current
I
to adjust values at
15