Having "hurt" one heinzman motor by running to much amperage, I would like to be able to monitor the amperage being sucked out of the batteries, once I get this motor repaired and back on the road. The motor in question is a 24 volt 30 amp max heinzman that I was running with a 36volt 35 amp controller. I have since cutback the shunt on the controller, but I would like to be able to see how many amps I really am pushing to the motor (never mind controller losses and brush loss, I just want gross amps from the battery). I am a real cheap skate and can’t justify a CA or other new school measurement systems. I do how ever want to use an analog amp meter that I have kicking around the shop... It’s a big old school 0 to 10 amps / 0 to 20 amps (scales printed on the meter) 100mvdc meter. So now come the questions....
I read up on this page "http://www.uoguelph.ca/~antoon/gadgets/shunts/shunts.html" that shunt can be made. I am rusty (well to tell the truth, never was good with math) on my math.
Can someone help!!!!
Here are the specs.
36 volt 12 ah sla battery pack
Feeding a 24 volt 30 amp motor. Which I think should only get 20 amps at 36 volts?????
Wire feeding the motor from the batteries is 10 gauge stranded copper.
0 to 10 amp / 0 to 20 amp (scales printed on the meter) 100mvdc meter
How do I figure out the shunt?
Thanks in advance
Bob in phx
I read up on this page "http://www.uoguelph.ca/~antoon/gadgets/shunts/shunts.html" that shunt can be made. I am rusty (well to tell the truth, never was good with math) on my math.
Can someone help!!!!
Here are the specs.
36 volt 12 ah sla battery pack
Feeding a 24 volt 30 amp motor. Which I think should only get 20 amps at 36 volts?????
Wire feeding the motor from the batteries is 10 gauge stranded copper.
0 to 10 amp / 0 to 20 amp (scales printed on the meter) 100mvdc meter
How do I figure out the shunt?
Thanks in advance
Bob in phx
