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owon bench multimeter?

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Hydron:
Thanks for the pictures of the 5.5 digit meter. Might consider one if the price is right (as in your case), though I'd need to look at improving the noisy fan, even if it meant a slight downgrade in achieved specs.

Have you got any comments on what the continuity, diode tests etc are like? Does it pick up brief contact, latch for a sensible time etc?
Buzzing stuff out is not what you buy a bench DMM for, but DMMs in general use spend a lot of time in these modes so it's still important that they work well.

paulbt:

--- Quote from: Hydron on November 04, 2020, 12:18:54 pm ---Thanks for the pictures of the 5.5 digit meter. Might consider one if the price is right (as in your case), though I'd need to look at improving the noisy fan, even if it meant a slight downgrade in achieved specs.

Have you got any comments on what the continuity, diode tests etc are like? Does it pick up brief contact, latch for a sensible time etc?
Buzzing stuff out is not what you buy a bench DMM for, but DMMs in general use spend a lot of time in these modes so it's still important that they work well.

--- End quote ---

Hi,

I decided to do a quick video which maybe will answer some of your questions.

Comments:

- first I wanted to show that this rebranded unit does not behave weird like in the videos from previous posts;
- in ohms mode I wanted to show you how fast it auto-ranges from OL to dead short while being set to "High" and "Low" sample rate;
- in continuity mode I wanted to show you how the threshold value influences the beep;
- in diode mode it can light up a blue LED (for me it's not useful, but I see people testing this during reviews);
- in capacitance mode I just wanted to show you the time it takes to measure;
- in temp mode it has a big offset, maybe because I removed the annoying fan and that 24C is the temperature of the cold junction (air) inside. It also has a menu where you can choose different types of sensors. When I first powered on this evening, I switched immediately to temp and with shorted inputs it displayed about 16-17C and slowly rising.

If you have any other curiosity/question about it, please let me know.


Hydron:
Thanks, that was very useful. Not so impressed by continuity speed (at low threshold) unfortunately.

Was the room temperature correct on the handheld meter? I assume it was cooler than ~24C given the time of year! If the small meter was accurate then yeah that's a pretty major error.

As for diode mode - I find it quite useful for testing connections to ICs etc, which normally have ESD diodes that will give a diode drop to either rail upon measurement. I don't care so much about LEDs, though that is also sometimes useful (I get out my 121GW when I need a higher voltage diode test mode).

Sadly it's looking like you get what you pay for - I might have to look at second hand HP/Agilent/KS units (e.g. 34401A/34410A) or a little higher up the scale of new meters (the newer KS meters are too pricey for a hobby purchase unfortunately).

paulbt:

--- Quote from: Hydron on November 10, 2020, 10:22:16 pm ---Thanks, that was very useful. Not so impressed by continuity speed (at low threshold) unfortunately.

Was the room temperature correct on the handheld meter? I assume it was cooler than ~24C given the time of year! If the small meter was accurate then yeah that's a pretty major error.

As for diode mode - I find it quite useful for testing connections to ICs etc, which normally have ESD diodes that will give a diode drop to either rail upon measurement. I don't care so much about LEDs, though that is also sometimes useful (I get out my 121GW when I need a higher voltage diode test mode).

Sadly it's looking like you get what you pay for - I might have to look at second hand HP/Agilent/KS units (e.g. 34401A/34410A) or a little higher up the scale of new meters (the newer KS meters are too pricey for a hobby purchase unfortunately).

--- End quote ---

Hi again!

In the room where I have my mini-lab setup, there are no hot water radiators and I was wearing sweater and trousers and still felt cool. I guess it was between 15C and 20C, but no way it was 24C. So...yup...it has a significant offset error even with other K-type probes. Maybe if I put the fan back in, it will change the situation. To be honest, I will rarely use the features I showed in the video. Mostly I use it on DCV, DCI, 4W resistance, trend chart, dual display and data-logging via USB. It has nice performance/accuracy and I'm happy with it so far.

Neper:

--- Quote from: Hydron on November 04, 2020, 12:18:54 pm ---though I'd need to look at improving the noisy fan
--- End quote ---

Do the OWON XDM3041/2041 have a built-in fan?

Ralf

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