I have this DC electronic load.
I am setting this electronic load to a constant resistance mode option - say 100 ohms - and turning the output ON.
When I measure the resistance across the electronic load terminals using a multimeter, I am not able to read the value as 100 ohms. I am getting high resistance values and it is showing as open circuit.
However, if I connect a power supply to the electronic load and ask it to consume a current equivalent of 100 ohms, the electronic load is consuming the required current from the power supply as if it was connected to a 100 ohm resistance across it.
- Power supply was set to 10V.
- DC constant resistance was set to 100 ohms.
- Current consumption to the power supply was 100mA.
So, actually, the electronic load seems to be setting a constant resistance of 100 ohms when I set it as such, but I am not able to measure using the multimeter. Why is that?