EEVBlog BM235 Multimeter Dilemma

[Towger]

Dave,

Have you tested the maximum voltage is can read or withstand?
The specifications say 1000 V DC.  It will happy read over 1000 V, so there appears to no hard limit in the firmware.  My 87 Fluke displays OL at  1000 V.  Unfortunately (or fortunately!) I don't have the capability to test it at more than 1070 V. Is 1100V a limit some cheap meters have?

Can it be pushed up to 6000V before the magic happens :-)

[dave_]

Just used my EEVblog BM235's temperate probe to record a fever of 39.3c. Such a versatile unit! :p

Indeed, I used mind to calibrate my daughter's thermometer:

Maybe I'm missing the joke here, but is that not a terrible idea? Inaccuracy on a typical K-type thermocouple is the difference between hyperthermia and hypothermia!

It's a great idea, I just hadn't thought of it.

[macboy]

Just used my EEVblog BM235's temperate probe to record a fever of 39.3c. Such a versatile unit! :p

Indeed, I used mind to calibrate my daughter's thermometer:

Maybe I'm missing the joke here, but is that not a terrible idea? Inaccuracy on a typical K-type thermocouple is the difference between hyperthermia and hypothermia!

It's a great idea, I just hadn't thought of it.

rs20 is right, it's a terrible idea.
Typical inaccuracy on a multimeter thermocouple is terrible, relatively speaking. We are talking +/- several degrees at any temperature. If you are measuring your soldering iron tip temperature, maybe that's not too bad. If you are checking human body temperature for a fever, it is not acceptable in the least.  OTOH, when done right, with a proper ice-water (or triple point) bath for the cold junction and a giant lookup table or high order polynomial calculations for the mV-temp conversion, then you can get very high absolute accuracy from a thermocouple. A handheld meter doesn't do that. It uses a thermistor to estimate the cold junction temperature (or worse, skips it and just assumes room temp), and probably uses linear interpolation on a conversion table with a few points spread over the several hundred degree range of the thing.

[iXod]

I have 639 people on the multimeter signup list:

Where does one sign up for the multimeter list?

Is this for announcements re. order status and shipping?

Thanks.

[tautech]

I have 639 people on the multimeter signup list:

Where does one sign up for the multimeter list?

Is this for announcements re. order status and shipping?

Thanks.

Not in this forum but it's available from Daves store on the main EEVblog website:
http://www.eevblog.com/store/

[iXod]

Don't see where to sign up. Link to sign-up page?

[tautech]

Don't see where to sign up. Link to sign-up page?

I'm pretty sure Dave meant: signed up to buy.

[iXod]

468 people have signed up to be notified when the meter is back in stock 
Will be interesting to see how many of those actually buy once they get the notification.

"...once they get the notification."

Apparently a sign-up list somewhere...

[iXod]

3. Banana plug adapters.  Hmmm....  These get used more frequently than I would have expected - and they make for a solid, convenient connection.  But they are small and easily lost, so I came up with this little idea - and it's been working well....

Sounds like you need a case:

http://www.fluke.com/fluke/inen/accessories/Cases-Holsters/CAMO-C25.htm?PID=78334

A pouch inside the zippered cover to accommodate misc bits.

[Hexureus]

Hi Dave.
Are you ordering more multimeter?
I would like to buy one.
Thank's

[Russ]

I just received mine. Looks to be well designed and made. Looking forward to giving it a test spin. 👍