Burgerman wrote:Almost. You still need the 36 inch extentions for balance wires. You will likely use 4.
EDIT: In large installations there was so much 'induced current/voltage' that you couldn't rely on a multimeter, it wasn't safe (false readings). The old fashion mains test probe with a small tungsten filament pigmy bulb was better, as it collapsed false voltages that were trying to deceive me
The Fluke 289 digital multimeter is designed to solve complex problems in electronics, plant automation, power distribution, and electro-mechanical equipment.
Low impedance voltage function for eliminating ghost voltages.
Low Pass filter for accurate voltage and frequency measurements.
Two terminal 50 ohm range with 1 milliohm resolution, 10 mA source current.
https://www.fluke.com/en-gb/product/ele ... /fluke-289
Burgerman wrote:
In the modern world, good multimeters like my fluke have 2 differrent AC voltage settings. One is called LOW IMPEDANCE and it is basically the same, other than there's a resistor across the input to remove induced "ghost" voltages. So you can read almost no volts, or anything from 100 to 240V on a wire depending on which option you use. So if you see a voltage where you dont expect one, switch to LOW and its gone. If its real, then it still reads obviously...The Fluke 289 digital multimeter is designed to solve complex problems in electronics, plant automation, power distribution, and electro-mechanical equipment.
Low impedance voltage function for eliminating ghost voltages.
Low Pass filter for accurate voltage and frequency measurements.
Two terminal 50 ohm range with 1 milliohm resolution, 10 mA source current.
https://www.fluke.com/en-gb/product/ele ... /fluke-289
Burgerman wrote:Because you need 1 for charger side. 1 for battery side, to make your new loom. And extra 1 for charging or testing batteries on the bench. And 1 spare for when you muck up a cable or something. Because nothing else fits the pl8 and they are cheap if ordered at the same time! If you figure out I am right later on carriage is very expensive... And theres nowhere else to get those cables at least in the UK.
Burgerman wrote:PER CHANNEL. Or PER MOTOR.
Your motors take around 100A each on a zero turn or climbing a ramp. Thats 200A for a pair. Intermittently. The motors take only around 5A each running at constant speed with no load. Maybe 30A as you drive up a very slight hill.
The permobil guy has no clue. I actually MEASURED this on many chairs.
Theres a complication here thou to muddy the waters.
The motor Amps is not always the same as battery Amps. With high impedance motors, the motors may be drawing 100A at stall each, but still only show say 100 Battery Amps. As speed increases, the motor Amp level stays the same if load stays the same. But battery Amps increase along with the pulsewidth. With high impedance motors MORE battery amps are used.
So yes your chair can take 200A . If its a 120A R-Net system, it can actually take 240A for up to 10 seconds. Measured on my Salsa chair.
expresso wrote:Yes Scooterman - thats correct - i used two sets of cable on one ring lug - one set of cable is 10AWG with the fuse - thats going to the ADD ON Cable going to the Chair using 8AWG
quadcopter wrote:swalker used 10 AWG as main charging wire and 6 AWG for battery interconnect cables.
I understand that thicker is better but what is min allowed?
Return to Everything Powerchair
Users browsing this forum: shirley_hkg, tettralytic and 46 guests