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| Uni-T launches the UT117C multimeter |
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| ru_tash:
I don't have reference voltage but I have set of resistors with 0.01%, is it reasonable to make conclusion regarding accuracy of VDC upon result of resistors measurements accuracy? ps. update, it seems like my assumption correct, the resistors measurement of my specimen within 0.03%, and voltage taken from AD588AQ was 10.000V |
| geb:
--- Quote ---I don't have reference voltage but I have set of resistors with 0.01%, is it reasonable to make conclusion regarding accuracy of VDC upon result of resistors measurements accuracy? --- End quote --- The VDC and resistance calibration values seem to be stored separately. My UT117C's VDC ranges are "bang-on" accurate at their low end such as 1.0V, 2.0V, but are off by 5-6 counts at 5.0V and are off by many more counts at 5.9V. In comparison, the 60K resistance range with my 0.01% resistors is off by the same amount throughout. My readings are typically five counts below the resistor's rated value at 10K, 20K, 30K, 40K, 50K. |
| ru_tash:
--- Quote from: geb on October 25, 2023, 03:27:45 am --- --- Quote ---I don't have reference voltage but I have set of resistors with 0.01%, is it reasonable to make conclusion regarding accuracy of VDC upon result of resistors measurements accuracy? --- End quote --- The VDC and resistance calibration values seem to be stored separately. My UT117C's VDC ranges are "bang-on" accurate at their low end such as 1.0V, 2.0V, but are off by 5-6 counts at 5.0V and are off by many more counts at 5.9V. In comparison, the 60K resistance range with my 0.01% resistors is off by the same amount throughout. My readings are typically five counts below the resistor's rated value at 10K, 20K, 30K, 40K, 50K. --- End quote --- it looks like nonlinear ADC |
| scale:
What do you think about UT117c and UT185A which multimeter will be more accurate for measuring currents less than 2mA? |
| ru_tash:
--- Quote from: scale on January 29, 2024, 03:50:29 pm ---What do you think about UT117c and UT185A which multimeter will be more accurate for measuring currents less than 2mA? --- End quote --- UT117c resolution for current 0.1mA UT185A - what is this? |
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