| Products > Test Equipment |
| Brymen, difference in reading between mA and uA scale |
| << < (9/9) |
| TimFox:
If you don't have a calibrated constant-current source, you can always connect a calibrated ammeter in series with the ammeter being tested and supply DC through a resistor to that series connection. |
| EEVblog:
--- Quote from: MarioBros69 on August 17, 2023, 05:57:47 pm ---In the video that appears a few comments above, what does the calibration device do to compensate for the internal resistance of the Brymen? When the Brymen is connected to the device, its internal resistance is also being put in series with the calibration device. --- End quote --- It's called a Contant Current Source. It doesn't matter what the load resisatnce is, it will push a constant current into that load, even a short circuit. The only limit is the maximum compliance voltage. |
| Navigation |
| Message Index |
| Previous page |