| Products > Test Equipment |
| Uni-T launches the UT117C multimeter |
| << < (21/24) > >> |
| makz:
--- Quote from: gamalot on September 07, 2023, 07:12:22 pm --- --- Quote from: makz on August 26, 2023, 05:33:50 pm ---can someone upload a dump of EEPROM P24C02A? --- End quote --- Here is mine. --- End quote --- I tried to upload yours firmware, my device greatly underestimates the voltage (- 0.1%). I noticed that I have a soldered eprom, so the firmware may be from another unit :( |
| makz:
--- Quote from: geb on August 28, 2023, 07:24:16 pm --- --- Quote ---can someone upload a dump of EEPROM P24C02A? --- End quote --- Ok! :-+ --- End quote --- I've uploaded yours firmware, it's a little more accurate than mine. If someone else posts the firmware, I can choose the optimal one)) |
| geb:
--- Quote ---I tried to upload yours firmware, my device greatly underestimates the voltage (- 0.1%). I noticed that I have a soldered eprom, so the firmware may be from another unit :( --- End quote --- Are you saying your EEPROM appears hand-soldered? Anything's possible, but the rework could be for a more innocent reason. |
| makz:
--- Quote from: geb on September 14, 2023, 02:14:27 am --- --- Quote ---I tried to upload yours firmware, my device greatly underestimates the voltage (- 0.1%). I noticed that I have a soldered eprom, so the firmware may be from another unit :( --- End quote --- Are you saying your EEPROM appears hand-soldered? Anything's possible, but the rework could be for a more innocent reason. --- End quote --- My unit was used and sold as new. So, its was deception. There are components on the board that are not yet factory, I’ll try to restore its accuracy. I hope eeprom from my device I think I've found a calibration constant for DCV. Now DC voltage correct. I'll check other functions later |
| geb:
Hmm, how do you know it was used? Reworking a board is normal, especially in early production. Was there other evidence besides the EEPROM? --- Quote ---I think I've found a calibration constant for DCV. --- End quote --- Excellent! Does the change affect all DCV ranges, or just one? And if it affects all DCV ranges, do you notice any change in resistance ranges? |
| Navigation |
| Message Index |
| Next page |
| Previous page |