Geekzone: technology news, blogs, forums
Guest
Welcome Guest.
You haven't logged in yet. If you don't have an account you can register now.


434 posts

Ultimate Geek
+1 received by user: 12
Inactive user


Topic # 113221 10-Jan-2013 07:19
Send private message

For some reason I can only login to the mobile site so have to start a new topic.
I have noticed a lot of cheap digital clamp meters for current measurement, cheap as in down to $13 ! What is the story with these are they even accurate, what is the difference between a $13 and a $200 one.

Create new topic


434 posts

Ultimate Geek
+1 received by user: 12
Inactive user


  Reply # 742609 10-Jan-2013 07:21
Send private message

http://www.thewarehouse.co.nz/red/catalog/product/Digital-Clamp-Meter-1000amps?SKU=920019

gzt

9934 posts

Uber Geek
+1 received by user: 1494


  Reply # 742974 10-Jan-2013 18:43
Send private message

What do you intend to use it for?



434 posts

Ultimate Geek
+1 received by user: 12
Inactive user


  Reply # 743117 11-Jan-2013 07:11
Send private message

I can log into the main site again now. 
I remember a few years ago I wanted one to measure the amp output of my cars alternator. I also think it would be good to gave. When I looked at them a few years ago I don't remember them being that cheap. 

What are the limitations of these? sure i can't connect a bulb to a 1.5 volt battery and get a current reading by clamping it around the wire? the serve as multi meters too right?

1725 posts

Uber Geek
+1 received by user: 342

Trusted

  Reply # 743139 11-Jan-2013 09:37
Send private message

Judging by the grainy pic from the web link, it looks like it will only do AC Amps, not DC ? If so, then you wont be able to measure alternator current, nor a 1.5v battery with a lamp, both of which are DC.

Seems to have a 100AMP range as well, so could be useful for measuring domestic AC current, but as with all clamp meters, you can only clamp around a single wire, not the sheath enclosing the wires - ie extension cords, etc.

As for the cheapness - LCD's etc have come down, and most mulitmeter functions are integrated onto a single chip, as well as a cheaper build, extra magic smoke components - I would be a bit hestitant using one of these around mains voltages




My thoughts are no longer my own and is probably representative of our media-controlled government


21241 posts

Uber Geek
+1 received by user: 4273

Trusted
Subscriber

  Reply # 743296 11-Jan-2013 14:14
Send private message

Have bought a couple of DX or ebay cheapies with the clamp.

Horrid accuracy, 20% out between the 2, and that was lower again than what the smart meter was reporting for current.

Useless beeper on them for continuity, almost like the beeper is in series with the probes or something, crackly staticy beep vs the nice distinct one of the fluke.

Probes look like they should go nowhere near to mains voltage. Seen better insulation on BBQ tongs.




Richard rich.ms

14118 posts

Uber Geek
+1 received by user: 1795


  Reply # 743353 11-Jan-2013 15:23
Send private message

richms: Have bought a couple of DX or ebay cheapies with the clamp.

Horrid accuracy, 20% out between the 2, and that was lower again than what the smart meter was reporting for current.

Useless beeper on them for continuity, almost like the beeper is in series with the probes or something, crackly staticy beep vs the nice distinct one of the fluke.

Probes look like they should go nowhere near to mains voltage. Seen better insulation on BBQ tongs.


But most of the cheap ones you buy from NZ retailers look no better, and infact some look the same as you can buy on the DX website, just more expensive. If you are going near mains, buying a professional one with a decent brand  like 'Fluke' which I have heard is a good brand, is the way to go. eg you get what you pay for like with everything.

Create new topic

Twitter »

Follow us to receive Twitter updates when new discussions are posted in our forums:



Follow us to receive Twitter updates when news items and blogs are posted in our frontpage:



Follow us to receive Twitter updates when tech item prices are listed in our price comparison site:





News »

Hawaiki Transpacific cable ready-for-service
Posted 20-Jul-2018 11:29


Microsoft Dynamics 365 Business Central launches
Posted 10-Jul-2018 10:40


Spark completes first milestone in voice platform upgrade
Posted 10-Jul-2018 09:36


Microsoft ices heated developers
Posted 6-Jul-2018 20:16


PB Technologies charged for its extended warranties and warned for bait advertising
Posted 3-Jul-2018 15:45


Almost 20,000 people claim credits from Spark
Posted 29-Jun-2018 10:40


Cove sells NZ's first insurance policy via chatbot
Posted 25-Jun-2018 10:04


N4L helping TAKA Trust bridge the digital divide for Lower Hutt students
Posted 18-Jun-2018 13:08


Winners Announced for 2018 CIO Awards
Posted 18-Jun-2018 13:03


Logitech Rally sets new standard for USB-connected video conference cameras
Posted 18-Jun-2018 09:27


Russell Stanners steps down as Vodafone NZ CEO
Posted 12-Jun-2018 09:13


Intergen recognised as 2018 Microsoft Country Partner of the Year for New Zealand
Posted 12-Jun-2018 08:00


Finalists Announced For Microsoft NZ Partner Awards
Posted 6-Jun-2018 15:12


Vocus Group and Vodafone announce joint venture to accelerate fibre innovation
Posted 5-Jun-2018 10:52


Kogan.com to launch Kogan Mobile in New Zealand
Posted 4-Jun-2018 14:34



Geekzone Live »

Try automatic live updates from Geekzone directly in your browser, without refreshing the page, with Geekzone Live now.



Are you subscribed to our RSS feed? You can download the latest headlines and summaries from our stories directly to your computer or smartphone by using a feed reader.

Alternatively, you can receive a daily email with Geekzone updates.