Thoroo 1 #26 Posted June 22, 2021 (edited) Is it possible to connect such a 12-24V voltmeter to the circuit? Voltage: 12-24V Measure voltage: 6-38V Edited June 22, 2021 by Thoroo - Share this post Link to post Share on other sites
Handy Don 12,565 #27 Posted June 22, 2021 7 hours ago, Thoroo said: Is it possible to connect such a 12-24V voltmeter to the circuit? Voltage: 12-24V Measure voltage: 6-38V That will work. Connect between a ground and the A terminal on the ignition switch. Share this post Link to post Share on other sites
Thoroo 1 #28 Posted July 1, 2021 Hello again. If I connect this voltmeter to ground, the other to the ignition switch - until the engine starts - all is well. But when the engine starts, the voltmeter starts to fool - it shows nonsense. Maybe the voltmeter needs to be connected differently ?! Share this post Link to post Share on other sites
pfrederi 17,956 #29 Posted July 1, 2021 Some ddgital mutimeter do not like the pulsing in current generated by small engine charging systems. If you can find an old analog gauge they will usually work. Share this post Link to post Share on other sites
Handy Don 12,565 #30 Posted July 1, 2021 1 hour ago, pfrederi said: Some digital meters do not like the pulsing in current generated by small engine charging systems. If you can find an old analog gauge they will usually work. Apparently your machine's charging system is putting out voltage with enough variance that the gauge display keeps moving around trying to report it. @Tractorhead may suggest wiring a capacitor across the gauge terminals to try to smooth out the voltage changes, but that may not be enough depending on the amount of variance. An analog gauge would be like this one Just to confirm, the gauge is connected with the Positive (+) terminal to the A position on the starter and the Negative (-) terminal to ground, right? Share this post Link to post Share on other sites
