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Rectifier/Regulator Charging Current (Amps) Measurement

 
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hgmckay



Joined: 23 May 2006
Posts: 379

PostPosted: Thu Oct 25, 2018 7:40 am    Post subject: Rectifier/Regulator Charging Current (Amps) Measurement Reply with quote

Clive,

Thanks for your reply and advice. Attached is a photograph of the manual and measuring device I have. It is an Extech single phase/three phase 1000 amp true RMS Power Clamp on Model 380976 digital meter. The manual is not very clear on the range of measurement for DC Amps. Attached also are two scanned sections in the manual concerning measuring Amps. One is for “AC Current measurement”, and the other is for “AC and DC micro Amp measurement”. I notice that there is no direct reference to “DC Amp measurement”, only micro Amp measurement. Can I simply use the “AC Current Measurement” clamp on procedure over one wire to measure DC current in that wire? I am a novice concerning electricity, so I need to know if I can use this device to measure the amp output of the +B wire coming out of the Rotax rectifier/voltage regulator to determine if I have adequate charging current for the battery?

[img]cid:image003.jpg(at)01D46C57.6682CDF0[/img]


Hugh G. McKay III
Senior Consultant
Worldwide Engineering Inc.
4090 North NC Hwy. 16
Denver, NC 28037

Ph. 704-661-8271
Fax 704-483-5466
Email hgmckay(at)bellsouth.net (hgmckay(at)bellsouth.net)
http://www.geo.com (click on Power Division)
Sent from Mail for Windows 10

From: Clive Richards (stephencliverichards(at)gmail.com)
Sent: Wednesday, October 24, 2018 2:18 PM
To: rotaxengines-list(at)matronics.com (rotaxengines-list(at)matronics.com)
Subject: Re: RotaxEngines-List: Rectifier/Regulator Charging Current (Amps) Measurement


Hi hugh as a ammeter has to be connected in series with the output of the regulator I think the output is probably 30 amp which will be greater than the digital meter usually 10 amp.
You can get a cheap analog DC 30 amp ammeter with a seperate shunt from ebay and connect that.

Alternatively you can get a relatively cheap DC 30-0-30 amp clipon ammeter again from ebay and clip over regulator output cable or battery cable will no be very accurate but probably ok for your needs

Clive

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From: owner-rotaxengines-list-server(at)matronics.com <owner-rotaxengines-list-server(at)matronics.com> on behalf of Hugh McKay <hgmckay(at)bellsouth.net>

Sent: Wednesday, October 24, 2018 4:24:20 PM

To: rotaxengines-list(at)matronics.com

Subject: RotaxEngines-List: Rectifier/Regulator Charging Current (Amps) Measurement



How can I measure the amount of battery charging current being put out by the Rotax Rectifier/Regulator using a digital multimeter?



Hugh G. McKay III, P.E. Fellow. L.M. ASCE

Senior Consultant

Worldwide Engineering Inc.

4090 North NC Hwy. 16

Denver, NC 28037



Ph. 704-661-8271

Fax 704-483-5466

Email hgmckay(at)bellsouth.net (hgmckay(at)bellsouth.net)

http://www.geo.com (click on Power Division)

Sent from Mail for Windows 10


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