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I am looking at buying an earth leakage clamp meter AMECaL ST-9810 (£59) or a Megger DCM305E (on offer at £194).
The only use will be mainly domestic fault finding.
Any opinions will be most welcome.
 
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  • Thread Starter Thread Starter
  • #3
buy the Megger.
That was a quick response. Any experience with the AMEcal?
 

snowhead

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Mentor
I've got an alternate version of the AMEcal, think it's the Tek one.
It was only for a backup to the company provided one and mainly because it's very compact.

If I was still working and buying one for myself it would be a Megger, or any other quality brand.

Buy cheap, buy twice (or more.)

I doubt you'll be able to get the AMEcal calibrated by anyone.
 

123

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Arms
Esteemed
If it's only for fault finding is the expense of calibration worth it any way?
Bit pointless having a tester of any sort that's way out of range...could lead you on a bit of a wild goose chase with false readings.
 
  • Thread Starter Thread Starter
  • #7
Bit pointless having a tester of any sort that's way out of range...could lead you on a bit of a wild goose chase with false readings.
Thanks.
My thoughts were if buying a new tester it should be accurate.
I won't need traceability to national standards since it won't be used to certify anything. Periodic sanity checks could be done on a known circuit resistor.
Regards,
Mike.
 

Spoon

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Arms
Esteemed
Neither.
What about DC leakage currents?
Excuse my ignorance but if the OP want's it mainly for domestic fault finding then is there DC leakage current?
 

Charlie_

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them that work and them that don't. :sunglasses: :sunglasses: :sunglasses:
Yes that seems to be the trend at the moment.
Good job we are all keeping within the max Zs values for OCPDs.. hmmm
 

Charlie_

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Arms
I'm industrial mate. Where would DC RCD's be used in a domestic situation?
Just trying to learn stuff?
Type AC - General purpose use, RCD can detect & respond to AC sinusoidal wave only.


Type A - Equipment incorporating electronic components RCD can detect & respond as for type AC, PLUS pulsating DC components.


Type F - Equipment with frequency controlled speed drives RCD can detect & respons as for type A, PLUS high frequency residual current.


Type B - Electric vehicle chargers, PV supplies.

  • RCD can detect & respond for type F, PLUS smooth DC residual current.
 

Charlie_

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Arms
Think the AC only type seem to be getting phased out or it would appear to be so
 

Spoon

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Arms
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Type AC - General purpose use, RCD can detect & respond to AC sinusoidal wave only.


Type A - Equipment incorporating electronic components RCD can detect & respond as for type AC, PLUS pulsating DC components.


Type F - Equipment with frequency controlled speed drives RCD can detect & respons as for type A, PLUS high frequency residual current.


Type B - Electric vehicle chargers, PV supplies.

  • RCD can detect & respond for type F, PLUS smooth DC residual current.
Thanks for that mate. I think my brain has kicked in a bit now.
So besides solar power and electrical vehicle chargers would there be anything else that would produce DC earth leakage in a domestic setting?
 

Spoon

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Arms
Esteemed
the toilet. DC = Diabolical Crap. :imp::imp::imp:
That's just what I post mate... :laughing:
 
  • Thread Starter Thread Starter
  • #20
Type AC - General purpose use, RCD can detect & respond to AC sinusoidal wave only.


Type A - Equipment incorporating electronic components RCD can detect & respond as for type AC, PLUS pulsating DC components.


Thanks for the heads-up. I don't think I shall encounter DC unless you can furthereducate me for domestic situations.
Regards,
Mike.
 
  • Thread Starter Thread Starter
  • #21
I am looking at buying an earth leakage clamp meter AMECaL ST-9810 (£59) or a Megger DCM305E (on offer at £194).
The only use will be mainly domestic fault finding.
Any opinions will be most welcome.
So the responses are two for Megger DCM305E none for AMECaL ST-9810 .
Any other opinions?
Regards,
Mike.
 

Andy78

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Mentor
Arms
Esteemed
I also have the TEK version of the AMEcal one. It's nice and compact but I've only used it a few times. Every time I have, I have been suspect of the supplied readings. I don't really trust it to be honest.

Go for a better one.
 

Charlie_

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Arms
AC only type RCDs are going to be phased out..
Homes are now packed with items that run on DC; all LED lighting, chargers, electronic devices, white goods
 

Charlie_

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Arms
DC clamp meters are also useful for testing on lighting, such as a string of 350mA LED lights.
 
D

Deleted member 26818

Just how useful is an Amp Clamp in domestic installations?
 

telectrix

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Just how useful is an Amp Clamp in domestic installations?
can be used to clamp the customer's goolies till he opens his wallet. wallet opens.... clamp meter opens.... sssimplesss.
 

Wilko

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Arms
Esteemed
Hi - I’ll often take a quick look as it’s non invasive and sometimes revealing. But as others have said it’s not necessity, like tea for example.
 

PEG

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Mentor
Arms
Esteemed
The ability and of course,capability,of taking a DC current reading,is useful.
I have separates,for the DC job,as i do a lot of machine/plant stuff,but the more the merrier,when it comes to testing tools :neutral:
 
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