Products > Test Equipment
Micsig Current Probe CP2100A/B Tests and Comparing
Martin72:
Hi,
Please give a link to this offer(I´ve searching on Ali for it, best price was 233€..).
I guess, taxes will be added to the price so I would buy it from Batronix - No stress in case of warranty or money back guarantee...
--- Quote ---working ok but its more a toy, but it has 10mA resolution...
--- End quote ---
Could you please show a pic with this resolution (10mA/Div.) ?
Algasman:
--- Quote from: bicycleguy on October 24, 2020, 04:43:07 pm ---Algasman
I'm not sure that multiple turns thru the clamp are within the spec. Sure it makes it work better as I show here:
--- Quote from: bicycleguy on October 23, 2020, 09:42:58 pm ---Redid some data with 5 turns. See edit above. Maybe should toss the 1 turn for consistency.
--- End quote ---
But how many turns? Where would you stop. I now think the 5 turn should be dropped and if you re-did with just 1 time thru the clamp your results would match the spec.
--- End quote ---
Using multiple turns is a common way to increase the probes sensitivity.
In my example the five turns increase the sensitivity by a factor of five so the signal to noise ratio is five times better than with just one turn.
But as usual, there is no free lunch.
Whereas the sensitivity increases linear with every turn, the insertion impedance increases by the square!
So five turns give you 25 times the impedance, 10 turns 100 times the insertion impedance.
It is like a transformer.
Noy:
€ 131,71 18%OFF | BNC Port Strom Sonde Breite Verwenden Clamp 10A 100A Oszilloskop Zubehör USB Powered DC Testing Universal Mini Elektrische Meter
https://a.aliexpress.com/_mryzsHn
CC-65 Manual:
http://www.hantek.com/m/en/productdetail_77.html
Martin72:
First thought, much too cheap to be true.. ;)
Noy:
So asked the Ali sellers (found 2 with below 140€) some questions and it looks like "better don't touch!"
1. Thing the devices are without official case.
2. I asked them if these parts are genuine and no production "garbage". If they met the official specification...
Both seller replied in a "talk around the corner" style :-D Don't know the exact english synonym for this speaking style..
The first replied nothing uptil now, only that it is without the case.
The second one replied "I can confirm the item will be the same as you can see on ads".
So both didn't say anything about genuine or specification... Maybe they didn't know... Or they knew and will not reply in an useable way (because they knew... ;-))
But without case / maybe without calibration sheet the devices are likely "production garbage / fake ones"...
I will order from Batronix i think. 5% off is possible if you ask for it....
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