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== DMM accuracy == | |||
This is a small comparison of some DMMs, all measuring the same voltages etc. on the same [http://www.voltagestandard.com/DMMCheck_Plus.html Voltagestandard DMMCheck Plus] device using the same multimeter cables. | |||
<gallery> | |||
File:Voltagestandard dmmcheck plus 2072 cal.jpg|<small>Device, calibration</small> | |||
File:Voltagestandard dmmcheck plus 2072 pcb top.jpg|<small>PCB, top</small> | |||
File:Voltagestandard dmmcheck plus 2072 pcb bottom.jpg|<small>PCB, bottom</small> | |||
</gallery> | |||
{| border="0" style="font-size: smaller" class="alternategrey sortable sigroktable" | |||
|- | |||
!Device | |||
!5V DC | |||
!5V AC | |||
!1mA DC | |||
!1mA AC | |||
!100Ω | |||
!1kΩ | |||
!10kΩ | |||
!100kΩ | |||
!100Hz | |||
!Duty cycle | |||
|- | |||
| [[Voltcraft VC-820]] | |||
| 4.98V | |||
| 5.53V | |||
| 1.00mA | |||
| 1.08mA | |||
| 100.2Ω | |||
| 1.000kΩ | |||
| 10.03kΩ | |||
| 100.2kΩ | |||
| 99.9Hz | |||
| 49.9% | |||
|- | |||
| [[PeakTech 3410]] (Metex ME-31) | |||
| 5.01V | |||
| 5.55V | |||
| 1.000mA | |||
| 1.111mA | |||
| 100.8Ω | |||
| 1.000kΩ | |||
| 10.000kΩ | |||
| 100.1kΩ | |||
| — | |||
| — | |||
|- | |||
| [[UNI-T UT61E]] | |||
| 4.995V | |||
| 5.026V | |||
| 0.999mA | |||
| 1.004mA | |||
| 100.63Ω | |||
| 0.9983kΩ | |||
| 9.996kΩ | |||
| 100.01kΩ | |||
| 100.0Hz | |||
| 49.9% | |||
|- | |||
| [[V&A VA18B]] | |||
| 5.014V | |||
| 5.540V | |||
| 1.00mA | |||
| 1.10mA | |||
| 101.2Ω | |||
| 1.002kΩ | |||
| 10.05kΩ | |||
| 100.4kΩ | |||
| 99.99Hz | |||
| 49.98% | |||
|- | |||
| [[MASTECH MAS345]] | |||
| 5.01V | |||
| 5.60V | |||
| 1.003mA | |||
| 1.111mA | |||
| 100.6Ω | |||
| 0.999kΩ | |||
| 9.99kΩ | |||
| 99.9kΩ | |||
| — | |||
| — | |||
|- | |||
| [[Digitek DT4000ZC]] | |||
| 4.99V | |||
| 5.53V | |||
| 0.99mA | |||
| 1.06mA | |||
| 100.5Ω | |||
| 1.000kΩ | |||
| 9.99kΩ | |||
| 100.2kΩ | |||
| 99.9Hz | |||
| 49.9% | |||
|- | |||
| [[UNI-T UT61D]] | |||
| 4.992V | |||
| 5.000V | |||
| 1.00mA | |||
| 0.92mA | |||
| 100.2Ω | |||
| 0.997kΩ | |||
| 9.99kΩ | |||
| 100.0kΩ | |||
| 99.9Hz | |||
| 49.9% | |||
|- | |||
| [[Victor 86C]] | |||
| 5.01V | |||
| 5.57V | |||
| 0.99mA | |||
| 1.10mA | |||
| 100.4Ω | |||
| 0.999kΩ | |||
| 10.91kΩ | |||
| 100.1kΩ | |||
| 99.9Hz | |||
| 49.9% | |||
|} | |||
Latest revision as of 01:17, 5 December 2012
DMM accuracy
This is a small comparison of some DMMs, all measuring the same voltages etc. on the same Voltagestandard DMMCheck Plus device using the same multimeter cables.
Device, calibration
PCB, top
PCB, bottom
| Device | 5V DC | 5V AC | 1mA DC | 1mA AC | 100Ω | 1kΩ | 10kΩ | 100kΩ | 100Hz | Duty cycle |
|---|---|---|---|---|---|---|---|---|---|---|
| Voltcraft VC-820 | 4.98V | 5.53V | 1.00mA | 1.08mA | 100.2Ω | 1.000kΩ | 10.03kΩ | 100.2kΩ | 99.9Hz | 49.9% |
| PeakTech 3410 (Metex ME-31) | 5.01V | 5.55V | 1.000mA | 1.111mA | 100.8Ω | 1.000kΩ | 10.000kΩ | 100.1kΩ | — | — |
| UNI-T UT61E | 4.995V | 5.026V | 0.999mA | 1.004mA | 100.63Ω | 0.9983kΩ | 9.996kΩ | 100.01kΩ | 100.0Hz | 49.9% |
| V&A VA18B | 5.014V | 5.540V | 1.00mA | 1.10mA | 101.2Ω | 1.002kΩ | 10.05kΩ | 100.4kΩ | 99.99Hz | 49.98% |
| MASTECH MAS345 | 5.01V | 5.60V | 1.003mA | 1.111mA | 100.6Ω | 0.999kΩ | 9.99kΩ | 99.9kΩ | — | — |
| Digitek DT4000ZC | 4.99V | 5.53V | 0.99mA | 1.06mA | 100.5Ω | 1.000kΩ | 9.99kΩ | 100.2kΩ | 99.9Hz | 49.9% |
| UNI-T UT61D | 4.992V | 5.000V | 1.00mA | 0.92mA | 100.2Ω | 0.997kΩ | 9.99kΩ | 100.0kΩ | 99.9Hz | 49.9% |
| Victor 86C | 5.01V | 5.57V | 0.99mA | 1.10mA | 100.4Ω | 0.999kΩ | 10.91kΩ | 100.1kΩ | 99.9Hz | 49.9% |