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Test Equipment Anonymous (TEA) group therapy thread

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Specmaster:
No, the 2w  \$\Omega\$ is not calibrated, it can't be if the 4w is done, it takes its approximation from the 4w though as it within a hairs width of the value  :-+

The ACA does have to be set as at 300mA, will investigate this later.

bd139:
If it’s reading 3.0000 with no input it’s asking for 3.0000 to be applied.

AC amps should be fun. I’d stuff a 1k resistor, the FG, a known good meter and the 3478A in series and crank it as close as you can get to 3v and adjust the 3478A cal parameter.

Resistors I have a set of 0.1% RN55D’s and made the rest of the values up from 1% ones in series/parallel and measured them on the U1241C

mnementh:
I believe tgzz (or was it tautech?) mentioned earlier that the default is 3V, and that you can Cal at 1/3 scale (1V), but inaccuracy would be 3 times as great at the high end of the scale.  :bullshit:  You would have to bring the displayed number down to read 1V, which I think will also be LOTS of button clicks...  :scared:


mnem
Maybe we should do a musical number now...

bd139:
I was well prepared for this after Daley Thompson’s Decathlon, one of the finest games ever.

Specmaster:

--- Quote from: bd139 on May 23, 2018, 05:48:04 pm ---If it’s reading 3.0000 with no input it’s asking for 3.0000 to be applied.

AC amps should be fun. I’d stuff a 1k resistor, the FG, a known good meter and the 3478A in series and crank it as close as you can get to 3v and adjust the 3478A cal parameter.

Resistors I have a set of 0.1% RN55D’s and made the rest of the values up from 1% ones in series/parallel and measured them on the U1241C

--- End quote ---
I assume then if I stuff in as near to 3V as possible that I'd have to adjust the reading to reflect that of the other known meter?

When it comes to AC amps, do you mean 300mA rather then 3V as I wont be reading volts on the other meter??

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