Author Topic: Show your Multimeter!  (Read 368729 times)

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Offline jvdb

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Re: Show your Multimeter!
« Reply #400 on: July 04, 2013, 11:41:12 pm »
Just got my second meter! I've had the Fluke 115 for ~4yrs and recently wanted something with mA and possibly µA ranges. After watching eBay for a while I found this BK 389A NIB for $60. Think I got a good deal?

 

Oracle

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Re: Show your Multimeter!
« Reply #401 on: July 22, 2013, 08:18:46 am »
yes.... you got a good deal for $60
 

Offline ResR

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Re: Show your Multimeter!
« Reply #402 on: July 23, 2013, 07:03:47 pm »
I have the analog Velleman AVM360 working somehow over 6 years.
 

Offline quarks

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Re: Show your Multimeter!
« Reply #403 on: August 07, 2013, 03:42:58 pm »
Today I received a brand new (but of course from old stock) Fluke 27 and I must say this is really a great, robust and perfectly accurate meter.
I tested it in all functions and ranges and it was perfectly linear and spot on.
Because I have my own cal lab, I did a full calibration ckeck: DCV, DCI and Ohms max. 1 count off, ACV and ACI at 50Hz mostly max. 1-2 count off
Very amazing!!!
This will become my new main every day tool, also because of 1000h battery life!
« Last Edit: August 07, 2013, 04:10:09 pm by quarks »
 

Offline branadic

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Re: Show your Multimeter!
« Reply #404 on: August 11, 2013, 08:57:45 am »
I bought a second bench multimeter, Philips PM 2534. The price was only 130,-€ incl. shipping, this is less than a new UT-71C and I couldn't resist.
« Last Edit: August 11, 2013, 07:43:31 pm by branadic »
Fluke 8050A | Prema 5000 | Prema 5017 SC | Advantest R6581D | GenRad 1434-G | Datron 4000A | Tek 2465A | VNWA2.x with TCXO upgrade and access to: Keysight 3458A, Keithley 2002, Prema 5017 SC, 34401A, 34410A, Keithley 2182A, HDO6054, Keysight 53230A and other goodies at work
 

Offline Amarbir[Lynx-India]

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Re: Show your Multimeter!
« Reply #405 on: August 11, 2013, 09:08:57 am »
I bought a second bench multimeter, Philips PM 2534. The price was only 130,-€ incl. shipping, this is less than a new UT-71C and I couldn't resist.

No Photo ,
        :--
Regards

Amarbir Singh Dhillon [ Lynx-India ] , Chandigarh [ India ] - > www.lynxdealerstore.com , www.lynx-india.com
Indian Distributor For  [ Autoelectric , Sofitech , IDEOfy ,Peak Electronic Design [UK ] , Anatek And Creatronica ]
My Electronics Blog - > www.lynxchandigarh.com
 

Oracle

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Re: Show your Multimeter!
« Reply #406 on: August 24, 2013, 08:38:40 am »
 

Online sotos

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Oracle

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Re: Show your Multimeter!
« Reply #408 on: August 24, 2013, 11:06:35 am »
Keithley makes it. Model is 2450
 

Offline Fezder

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Re: Show your Multimeter!
« Reply #409 on: August 24, 2013, 03:29:26 pm »
i googled keithley 2450....and i thought flukes etc are expensive lol :D.
Both analog/digital hobbyist, reparing stuff from time to time
 

Oracle

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Re: Show your Multimeter!
« Reply #410 on: August 24, 2013, 04:57:59 pm »
yes, but this piratically is an entire lab portable lab.... can do a lot of things:
-DMM
-V/I source
-power supply
-precision electronic load
-semiconductor tracer/curve tracer

for 5K$ may worth it...
 

Offline ddavidebor

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Show your Multimeter!
« Reply #411 on: August 24, 2013, 06:25:09 pm »
yes, but this piratically is an entire lab portable lab.... can do a lot of things:
-DMM
-V/I source
-power supply
-precision electronic load
-semiconductor tracer/curve tracer

for 5K$ may worth it...

Well but for 5k you can get excellent and separated instrument
Davide Bortolami,
Fermium LABS srl
 

Oracle

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Re: Show your Multimeter!
« Reply #412 on: August 24, 2013, 07:33:16 pm »
Don't think so if you take all of that gear separately:

V/I source ~ 2K
DMM ~ 1K
electronic load ~ 1 K
power supply ~ 0.5 K (or more)
Sc tracer instrument ?? (can't extimate)

+TAX = more than 5.6K, The 2450 is 5K taxed, so it's a deal.  :)
 

Online sotos

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Re: Show your Multimeter!
« Reply #413 on: August 24, 2013, 07:35:00 pm »
yes, but this piratically is an entire lab portable lab.... can do a lot of things:
-DMM
-V/I source
-power supply
-precision electronic load
-semiconductor tracer/curve tracer

for 5K$ may worth it...


And if 1 instrument goes down you just buy a new one or repair that only, not the whole lab instrument.
 

Offline ddavidebor

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Show your Multimeter!
« Reply #414 on: August 24, 2013, 08:13:26 pm »
All in one instrument are just so useless...
Davide Bortolami,
Fermium LABS srl
 

Offline c4757p

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Re: Show your Multimeter!
« Reply #415 on: August 24, 2013, 08:16:45 pm »
It's not really an all-in-one... it's just an SMU...
No longer active here - try the IRC channel if you just can't be without me :)
 

Offline Dr. Frank

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Show your Multimeter .. in action!
« Reply #416 on: August 25, 2013, 09:14:49 am »
Got old stuff only:

Circuitmate 25L, 30 26 years old, and still accurate enough for daily electronics

4 1/2 digits DIY, based on 7135 / 7650, 20 years old, for DCV, DCI, low input current (10pA) and resolution to 1µV, 1nA

For metrology usage:

HP34401, 24 years old

HP3458, 13 years, demonstrating 0.2ppm transfer stability for Ohm range. 

Frank
« Last Edit: August 25, 2013, 07:40:20 pm by Dr. Frank »
 

Offline Blaffetuur

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Re: Show your Multimeter!
« Reply #417 on: August 25, 2013, 10:04:02 am »
Yeah a pretty cheap multimeter :)





Its a rebranded Velleman one, I don't know it does the job. If I had the money I bought an oscilloscope but thats way out of my budget :(
 

Offline branadic

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Re: Show your Multimeter!
« Reply #418 on: August 25, 2013, 12:00:05 pm »
Quote
4 1/2 digits DIY, based on 7135 / 7650, 20 years old, for DCV, DCI, low input current (10pA) and resolution to 1µV, 1nA

A beautiful Weston Cell, I wish I had one too, but I fear I'm born a lil' bit to late.

What circuit example did you use for the 7135 and what voltage reference is used inside? You have circuit details that you want to share?
Fluke 8050A | Prema 5000 | Prema 5017 SC | Advantest R6581D | GenRad 1434-G | Datron 4000A | Tek 2465A | VNWA2.x with TCXO upgrade and access to: Keysight 3458A, Keithley 2002, Prema 5017 SC, 34401A, 34410A, Keithley 2182A, HDO6054, Keysight 53230A and other goodies at work
 

Offline Amarbir[Lynx-India]

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Re: Show your Multimeter!
« Reply #419 on: August 25, 2013, 01:37:46 pm »
Yeah a pretty cheap multimeter :)





Its a rebranded Velleman one, I don't know it does the job. If I had the money I bought an oscilloscope but thats way out of my budget :(

Feeling Sad  ,
     Thats a CEM Rebranded Middle End Kick Ass Multimeter
Regards

Amarbir Singh Dhillon [ Lynx-India ] , Chandigarh [ India ] - > www.lynxdealerstore.com , www.lynx-india.com
Indian Distributor For  [ Autoelectric , Sofitech , IDEOfy ,Peak Electronic Design [UK ] , Anatek And Creatronica ]
My Electronics Blog - > www.lynxchandigarh.com
 

Offline Dr. Frank

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Re: Show your Multimeter!
« Reply #420 on: August 25, 2013, 04:58:21 pm »

A beautiful Weston Cell, I wish I had one too, but I fear I'm born a lil' bit to late.

What circuit example did you use for the 7135 and what voltage reference is used inside? You have circuit details that you want to share?

Thank you for the flowers.
 
Yep, the wooden box is beautiful, but that's only a saturated cell without temperature stabilization. You need a thermometer sticking inside to calculate the 20°C voltage.
It's simply a museums piece (like me  :palm:).

I used the 7135 datasheet standard circuitry, with a polypropylene 470nF foil cap.
The reference is an ICL8069A, 10ppm/K.

The resistor assembly is sort of free wire connection on the switch, so really nothing to share.  ::)

The 4 1/2 digit module also contains the ICL 7650.

If you're interested, I could search for the old layout I think I've still saved somewhere.

Frank
« Last Edit: August 25, 2013, 05:06:46 pm by Dr. Frank »
 

Offline branadic

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Re: Show your Multimeter!
« Reply #421 on: August 25, 2013, 05:59:19 pm »
Quote
If you're interested, I could search for the old layout I think I've still saved somewhere.

Sure, at least your current measurement implementation would be interesting. The only publication that I know that includes current measurement is the HAMEG HM8011.
Fluke 8050A | Prema 5000 | Prema 5017 SC | Advantest R6581D | GenRad 1434-G | Datron 4000A | Tek 2465A | VNWA2.x with TCXO upgrade and access to: Keysight 3458A, Keithley 2002, Prema 5017 SC, 34401A, 34410A, Keithley 2182A, HDO6054, Keysight 53230A and other goodies at work
 

Offline Dr. Frank

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Re: Show your Multimeter!
« Reply #422 on: August 25, 2013, 07:45:40 pm »


Sure, at least your current measurement implementation would be interesting. The only publication that I know that includes current measurement is the HAMEG HM8011.

Uh, there's nothing mystic about that.

The module measures voltages of 2V, 200mV and 20mV only.

In current mode, I simply used decade shunt resistors from 0.1 to 10k, and the 7650 amplifies the voltage over them by a fixed factor of 10, i.e. 200mV max. burden. That's all.

Frank

 
« Last Edit: August 25, 2013, 07:47:47 pm by Dr. Frank »
 

Offline Tooms

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Re: Show your Multimeter!
« Reply #423 on: August 25, 2013, 07:46:58 pm »
Hi

It was time to do the half yealy battery check and changeup of my meters so here is some photos.
 








And here is the benchmeters in the mini rack at my bench.




Tooms
 

Offline nanofrog

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Re: Show your Multimeter!
« Reply #424 on: August 25, 2013, 08:01:18 pm »
It was time to do the half yealy battery check and changeup of my meters so here is some photos.
By chance are you a Fluke Distributor or just an addict?   :o  :-DD

Lots of nice gear there.  ;D
 


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