IVR pulse at 4 volts gauges read low

nm9stheham said
The IVR voltage being 'low' is indeed consistent with the low gauge readings. It is more likely that the IVR is 'short cycling', i.e., the 12 pulses that it is putting out are too short and giving you a low average voltage. If your Fluke meter is not showing anything, then I really suspect the short cycling of the IVR. The Tripplite analog meter is showing all that it can....

Getting to the IVR in your case is a pain; otherwise there is an easy way to check with a 6V battery.

Got to thinking more about what you are saying. The fact my analog meter clearly showed the pulse from 0v to 4v @ about 1-1.5 second pulse seperation (more off than on) the short cycle theory sounds like the culprit. Which seemingly would make the gauges read low.

Next question would be has anyone just pulled the 12v feed wire from the barrell connector and re-route to the new solid state IVR. Thus bypassing the original IVR without pulling the gauge out and disabling it?