| Products > Test Equipment |
| DMMCheck Plus Multimeter Reference(and other References) - Experiences.. |
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| Martin72:
Hi, Welectron offer this board together with the L/C option, it sounds very promising... AC/DC current, AC/DC voltage, resistance, capacity, inductance - everything together in one box. --- Quote ---The DMMCheck Plus provides the following test circuits: Resistance: 100Ω / 1.00 kΩ / 10.0 kΩ / 100 kΩ (±0.1%, 10ppm precision resistors) DC voltage: 5V, ± 0.007% voltage reference DC current: 1mA, ±0.1% current source AC voltage: 5V RMS, bipolar (+5V, -5V) square wave, ±0.1% voltage source AC current: 1mA RMS, ±0.2% current source Frequency: 100 Hz / 10 kHz, ±0.02% signal source Duty Cycle: 100Hz, 5V RMS, signal source has 50% ± 0.05% duty cycle Capacitance (with pre-installed L/C option): 1nF / 10nF / 100nF / 1µF (±0,05% precision capacitors) Inductance (with pre-installed L/C option): 1µH / 10µH / 100µH / 1mH (±0,05%) --- End quote --- https://www.welectron.com/DMMCheck-Plus-Multimeter-Calibration-Reference-with-L-C-Option Before I hit the buy button, what are your thoughts ? Thanks in advance.. |
| sokoloff:
I bought one and am happy with it. I don’t have the L/C option, but the others all indicate that my meters aren’t crazy off. I don’t know how I’d be “sure” how calibrated it is, but based on the paperwork I got with it, I’m inclined to believe it is as-specified and as-measured. |
| Martin72:
--- Quote ---but based on the paperwork I got with it, --- End quote --- I would trust that in this case, based on the technical data of the components used. Welectron offers an additional calibration, once according to ISO standard or even DakkS (globally accepted standard) standard. Would be another 85 or 115 € in addition, does not necessarily have to be...For now. |
| KungFuJosh:
Have you looked at purchasing it directly? Assuming the shipping isn't crazy, it should cost a lot less. https://dmmcheckplus.com/shop/ols/products/dmmcheck-plus-without-enclosure |
| J-R:
I've had the main board for about 5 years and the L/C board for about 2 years. If you don't have any references/standards already, it can be a great way to kick start things and get a bunch all at once. However, it needs to be shipped off for a yearly calibration to be of much use, IMHO. It is going to drift a little over time, and my calibration data reflects that. But also I think that is the main advantage of it. It's very small and can be shipped around for very little money (relatively speaking). The main shortcoming is the limited output values. So what are you planning to do with this? |
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