Today's Message Index:
----------------------
1. 08:40 AM - Re: Rectifier/Regulator Charging Current (Amps) Measurement (Hugh McKay)
2. 02:53 PM - Re: Rectifier/Regulator Charging Current (Amps) Measurement (Clive Richards)
3. 11:36 PM - Re: Rectifier/Regulator Charging Current (Amps) Measurement (Clive Richards)
Message 1
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| Subject: | Rectifier/Regulator Charging Current (Amps) Measurement |
Clive,
Thanks for your reply and advice. Attached is a photograph of the manual an
d measuring device I have. It is an Extech single phase/three phase 1000 am
p true RMS Power Clamp on Model 380976 digital meter. The manual is not ver
y clear on the range of measurement for DC Amps. Attached also are two scan
ned sections in the manual concerning measuring Amps. One is for =9CA
C Current measurement=9D, and the other is for =9CAC and DC mic
ro Amp measurement=9D. I notice that there is no direct reference to
=9CDC Amp measurement=9D, only micro Amp measurement. Can I sim
ply use the =9CAC Current Measurement=9D clamp on procedure ove
r one wire to measure DC current in that wire? I am a novice concerning ele
ctricity, so I need to know if I can use this device to measure the amp out
put of the +B wire coming out of the Rotax rectifier/voltage regulator to d
etermine if I have adequate charging current for the battery?
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@bellsouth.net
http://www.geo.com (click on Power Division)
Sent from Mail for Windows 10
From: Clive Richards
Sent: Wednesday, October 24, 2018 2:18 PM
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 r
egulator I think the output is probably 30 amp which will be greater than t
he digital meter usually 10 amp.
You can get a cheap analog DC 30 amp ammeter with a seperate shunt from eba
y 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@matronics.com <owner-rotaxengines-list
-server@matronics.com> on behalf of Hugh McKay <hgmckay@bellsouth.net>
Sent: Wednesday, October 24, 2018 4:24:20 PM
Subject: RotaxEngines-List: Rectifier/Regulator Charging Current (Amps) Mea
surement
=C2-
How can I measure the amount of battery charging current being put out by t
he Rotax Rectifier/Regulator using a digital multimeter?
=C2-
Hugh G. McKay III, P.E. Fellow. L.M. ASCE
Senior Consultant
Worldwide Engineering Inc.
4090 North NC Hwy. 16
Denver, NC 28037
=C2-
Ph. 704-661-8271
Fax 704-483-5466
Email hgmckay@bellsouth.net
http://www.geo.com (click on Power Division)
Sent from Mail for Windows 10
=C2-
Message 2
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| Subject: | Re: Rectifier/Regulator Charging Current (Amps) |
Measurement
The clamp part of the meter only measures AC current you can measure dc mil
liamps using the test leads If you know a car repairer they may have a clip
on dc ammeter but you will have to read it in position . I expect digital d
c clamp meters similar to yours are available but will be expensive.
Get Outlook for Android<https://aka.ms/ghei36>
________________________________
From: owner-rotaxengines-list-server@matronics.com <owner-rotaxengines-list
-server@matronics.com> on behalf of Hugh McKay <hgmckay@bellsouth.net>
Sent: Thursday, October 25, 2018 4:39:35 PM
Subject: RE: RotaxEngines-List: Rectifier/Regulator Charging Current (Amps)
Measurement
Clive,
Thanks for your reply and advice. Attached is a photograph of the manual an
d measuring device I have. It is an Extech single phase/three phase 1000 am
p true RMS Power Clamp on Model 380976 digital meter. The manual is not ver
y clear on the range of measurement for DC Amps. Attached also are two scan
ned sections in the manual concerning measuring Amps. One is for =93AC Curr
ent measurement=94, and the other is for =93AC and DC micro Amp measurement
=94. I notice that there is no direct reference to =93DC Amp measurement=94
, only micro Amp measurement. Can I simply use the =93AC Current Measuremen
t=94 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 de
vice to measure the amp output of the +B wire coming out of the Rotax recti
fier/voltage regulator to determine if I have adequate charging current for
the battery?
[cid:image003.jpg@01D46C57.6682CDF0]
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@bellsouth.net<mailto:hgmckay@bellsouth.net>
http://www.geo.com (click on Power Division)
Sent from Mail<https://go.microsoft.com/fwlink/?LinkId=550986> for Window
s 10
From: Clive Richards<mailto:stephencliverichards@gmail.com>
Sent: Wednesday, October 24, 2018 2:18 PM
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 r
egulator I think the output is probably 30 amp which will be greater than t
he digital meter usually 10 amp.
You can get a cheap analog DC 30 amp ammeter with a seperate shunt from eba
y 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
Get Outlook for Android<https://aka.ms/ghei36>
From: owner-rotaxengines-list-server@matronics.com <owner-rotaxengines-list
-server@matronics.com> on behalf of Hugh McKay <hgmckay@bellsouth.net>
Sent: Wednesday, October 24, 2018 4:24:20 PM
Subject: RotaxEngines-List: Rectifier/Regulator Charging Current (Amps) Mea
surement
How can I measure the amount of battery charging current being put out by t
he 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@bellsouth.net<mailto:hgmckay@bellsouth.net>
http://www.geo.com (click on Power Division)
Sent from Mail<https://go.microsoft.com/fwlink/?LinkId=550986> for Window
s 10
Message 3
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| Subject: | Re: Rectifier/Regulator Charging Current (Amps) |
Measurement
Hi hugh I have just checked meter speck to check I was correct but I see th
ey do AC/DC model clamp meters these days .
The cheapest option is buy a ammeter with seperate shunt connect shunt in s
eries with alternator regulator output and connect shunt to meter where you
can read it. (About $ 20) you will need to connect correct polarity on a a
nalog meter or it will try to read backwards
Clive
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________________________________
From: owner-rotaxengines-list-server@matronics.com <owner-rotaxengines-list
-server@matronics.com> on behalf of Hugh McKay <hgmckay@bellsouth.net>
Sent: Thursday, October 25, 2018 4:39:35 PM
Subject: RE: RotaxEngines-List: Rectifier/Regulator Charging Current (Amps)
Measurement
Clive,
Thanks for your reply and advice. Attached is a photograph of the manual an
d measuring device I have. It is an Extech single phase/three phase 1000 am
p true RMS Power Clamp on Model 380976 digital meter. The manual is not ver
y clear on the range of measurement for DC Amps. Attached also are two scan
ned sections in the manual concerning measuring Amps. One is for =93AC Curr
ent measurement=94, and the other is for =93AC and DC micro Amp measurement
=94. I notice that there is no direct reference to =93DC Amp measurement=94
, only micro Amp measurement. Can I simply use the =93AC Current Measuremen
t=94 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 de
vice to measure the amp output of the +B wire coming out of the Rotax recti
fier/voltage regulator to determine if I have adequate charging current for
the battery?
[cid:image003.jpg@01D46C57.6682CDF0]
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@bellsouth.net<mailto:hgmckay@bellsouth.net>
http://www.geo.com (click on Power Division)
Sent from Mail<https://go.microsoft.com/fwlink/?LinkId=550986> for Window
s 10
From: Clive Richards<mailto:stephencliverichards@gmail.com>
Sent: Wednesday, October 24, 2018 2:18 PM
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 r
egulator I think the output is probably 30 amp which will be greater than t
he digital meter usually 10 amp.
You can get a cheap analog DC 30 amp ammeter with a seperate shunt from eba
y 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
Get Outlook for Android<https://aka.ms/ghei36>
From: owner-rotaxengines-list-server@matronics.com <owner-rotaxengines-list
-server@matronics.com> on behalf of Hugh McKay <hgmckay@bellsouth.net>
Sent: Wednesday, October 24, 2018 4:24:20 PM
Subject: RotaxEngines-List: Rectifier/Regulator Charging Current (Amps) Mea
surement
How can I measure the amount of battery charging current being put out by t
he 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@bellsouth.net<mailto:hgmckay@bellsouth.net>
http://www.geo.com (click on Power Division)
Sent from Mail<https://go.microsoft.com/fwlink/?LinkId=550986> for Window
s 10
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