Near Intersection of I-35 & I-90 Southern Mn. | Here's a thought. The moisture sensor consists of two parts. 1) the "blade" that is immersed in grain and attempts to measure the electrical conductivity of the grain. 2) a temperature sensor which is a small gold colored "dot" near the blade. The temperature and the conductivity are both used to calculate the moisture.
With time and wear it is possible that the "gold dot" has become worn due to grain flow over it. This may cause the sensor to fail. I note from your picture that the temperature is listed at some 23 degrees. Are you working in Metric or English units? Neither your profile nor post gives any indication of where you might live. 23 degrees Fahrenheit would not be realistic. At one point in time a reading of -5 degrees F was an indication of a complete failure.
I've had an Ag Leader yield monitor since the very beginning with a YM 2000 and have moved the components from combine to combine through the years as well. When I moved the yield items to my present combine, it was suggested that I purchase Ag Leader's new and improved moisture sensor.
If I were in your situation I would investigate obtaining a new one since your current one may be worn or may be the "old" style.
You are correct on adjusting the proximity switch for the motor that runs the small auger. As you are likely aware, the idea is that the proximity switch attempts to keep the sensor immersed in grain but yet run to move "new" grain past the sensor.
If the small auger ran all the time, the cavity could become empty when turning around on the headlands, an area of poor yield or a crop that doesn't produce much grain flow. The moisture sensor blade needs to be completely immersed in grain at all times or it will not be accurate. On the other hand if the auger motor should stop, the moisture sensor might work fine but it would not be exposed to "new" grain and would just read the same value all day long. The solution is to use the proximity switch that will start the motor when the cavity becomes very full. Some "old" grain is moved to the clean grain elevator allowing space for some "new" grain to enter the cavity and be sensed.
I added a light indicator to the motor circuit on my auger motor way back with my first YM2000. This means I can watch the operation of the auger motor if I'm having any doubts rather than switching to the diagnostic screen. The indicator is lit whenever the auger motor is getting power and thus should be running. In corn, due to the higher flow, the indicator is normally ON at all times although it will go off when turning around on a headland. In soybeans, the indicator and motor will go ON/OFF under normal conditions since the flow in soybeans is much less than in corn.
Although I haven't had any problems with the moisture sensing assembly, it is reassuring to note that the auger motor is behaving as I would expect.
Edited by tedbear 9/14/2023 06:45
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Agleader edge and moisture se sor
