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| Fluke 8050A calibration |
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| bob91343:
They are not adjustable. Well the combination is adjustable in 9V increments. To get 200 Volts one needs about 22 of them. I think they cost around $3 so that makes the source a bit pricey. I have planty of sources of voltage in that range anyway. If there is one thing I have plenty of, it's power supplies. |
| Fungus:
--- Quote from: bob91343 on August 01, 2020, 02:44:20 am ---I think they cost around $3 so that makes the source a bit pricey. --- End quote --- Here's 40 of them for under $20, shipped from the USA: https://www.aliexpress.com/item/32324041879.html |
| CDaniel:
The calibration procedure was made to be standard , but if you know what are you doing any voltage close enough in that range is good when you have another calibrated voltmeter . |
| coromonadalix:
Maybe tons of 9v cells from a dollar store ?? |
| Fungus:
--- Quote from: CDaniel on August 01, 2020, 07:57:37 am ---The calibration procedure was made to be standard , but if you know what are you doing any voltage close enough in that range is good when you have another calibrated voltmeter . --- End quote --- Yep. If you have a second meter with better precision than the one you're calibrating then there's absolutely no need to generate a precision voltage, just a voltage somewhere near the top of the range being calibrated. The OP says he has a 6.5 digit HP 3456A, that's easily good enough to lick a Fluke 8050A into shape. The only important thing is to calibrate somewhere near the top of the range being calibrated. In theory you can calibrate a 20V range with a 1.5V battery but I'd be much happier working with 18V from two 9V batteries. It will be much easier to do and the error will be 12x smaller (18/1.5=12). |
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