Products > Test Equipment
AN8008 US $19, 9999count, 1uV, 0.01uA, 0.01Ohm, 1pF resolution meter
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HKJ:

--- Quote from: ebastler on August 26, 2019, 12:27:07 pm ---
Hmm, which post? Could you indicate the reply number please?

--- End quote ---

It looks like he is not talking about the internal current shunt, but about measuring sub-ohm resistors with the meter.
BravoV:

--- Quote from: HKJ on August 26, 2019, 12:30:52 pm ---... about measuring sub-ohm resistors with the meter.

--- End quote ---

Sub-ohm measuring with 2 wires only meter ? Reliably ?  ::)
HKJ:

--- Quote from: BravoV on August 26, 2019, 12:45:31 pm ---
--- Quote from: HKJ on August 26, 2019, 12:30:52 pm ---... about measuring sub-ohm resistors with the meter.

--- End quote ---

Sub-ohm measuring with 2 wires only meter ? Reliably ?  ::)

--- End quote ---

Most of the better meters uses separate paths for current source and measurement to the connector, i.e. the switch resistance will not affect the result. That is not always the case on cheap meters.
BravoV:

--- Quote from: HKJ on August 26, 2019, 12:51:47 pm ---
--- Quote from: BravoV on August 26, 2019, 12:45:31 pm ---
--- Quote from: HKJ on August 26, 2019, 12:30:52 pm ---... about measuring sub-ohm resistors with the meter.

--- End quote ---

Sub-ohm measuring with 2 wires only meter ? Reliably ?  ::)

--- End quote ---

Most of the better meters uses separate paths for current source and measurement to the connector, i.e. the switch resistance will not affect the result. That is not always the case on cheap meters.

--- End quote ---

Yeah, most bench top meters has 4-W capability, but never seen at "handheld" DMMs, except for LCR meter, but its different animal by it self.
HKJ:

--- Quote from: BravoV on August 26, 2019, 12:59:47 pm ---
--- Quote from: HKJ on August 26, 2019, 12:51:47 pm ---
Most of the better meters uses separate paths for current source and measurement to the connector, i.e. the switch resistance will not affect the result. That is not always the case on cheap meters.

--- End quote ---

Yeah, most bench top meters has 4-W capability, but never seen at "handheld" DMMs, except for LCR meter, but its different animal by it self.

--- End quote ---

I did not talk about bench meters, but standard hand held meters with two terminals where the current source and voltage measurement do not share a switch terminal.
And yes benchmeters is something else and considerable better at low ohmic measurement.
Handheld multimeter with 4 terminal ohm do exist: METRAHIT IM XTRA but it is probably just as expensive as a bench meter.

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