My baseline is now the Siglent SDM3045X which I think would fulfill the role.
Have you considered the SC models for their 16 channels of acquisition ?
They start from SDM3055-SC so a bit dearer than the SDM3045X but all can do dual measurements, regardless of the model.
Unfortunately they need be a -SC model from the factory as the scanner card cannot be retrofitted.
I didn't. While I can see how this could be useful to do the test setup in the first place, for this setup, only current measurement is needed. And this thing will be dedicated for the production line for a few years, so minimum product...
I think if I design a new test jig, than that scanner card can be very useful to measure more things.
I'm setting up a production line testing tool. It an in-circuit functional testing JIG, that measures a bunch of things, and makes sure that the board we ship is within specifications. There is one test that's still missing, measuring the current consumption of the DUT. The original design called for a Keysight 34465A for this. And well, it's not within the budget to buy a new one.
So I'm searching for an instrument that can do current measurements, connect to the test system with Ethernet (USB might be acceptable). I though to ask the collective brainpower of the EEVBlog forum, because you know more instruments than I do. So here are specs:
- Desktop multimeter
- Measures ~100uA with 10uA accuracy
- Measures ~2A with 1% accuracy
- Can switch between these ranges without disconnecting the DUT
- Has Ethernet and SCPI, maybe USB
- Doesn't look like a toy
- Not an absolute nightmare of software to automate
My baseline is now the Siglent SDM3045X which I think would fulfill the role. I'm basing this on no actual evidence, just a guess, having never used Siglent multimeters. Honorable mention are all the Owon multimeters that look like a toy, and the Hantek 365* that looks like the piece but doesn't have uA range. And the Keysight U2741A that's somehow even more expensive than their 6.5 digit desktop meters.
I have a question about this:
"- Can switch between these ranges without disconnecting the DUT"
Does that mean :
- I don't want to change cables from LO/HIGH range inputs on meter.
or
- DUT cannot ever be disconnected while we change ranges in meter. Like in an device is measured in standby and then in active mode but without reset because meter disconnected one shunt and then connected the other. It must preserve connection and only change shunt value.
Standby and active without reset. The measurement happens on the same cable. Imagine a DMM doing break before make, autoranging and resetting the DUT every time.
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