Moisture Sensor calibration

Moisture Sensor calibration is critical to successful moisture control. If either the wet or dry Sensor calibration is 1% off, the control will not act in a proportional and rational manner. Take samples of both incoming and discharge grain. Calibrate three (3) times a day or more until you are convinced the sensors are tracking properly. Then calibrate three (3) times a day for peace-of-mind.

Follow specific directions in your QUANTUM® Manual, on the instructional CD and on the QUANTUM® screens. See screens at right.

1. 1. Press the “2 Minute sample for calibration” button. The QUANTUM® is set to use a two-minute sample procedure. This time length will ensure a representative sample.
2. 2. Collect samples from the wet and/or dry grain.
3. Wet samples:
4. MEYER®-S and BCT Tower Dryers: The wet grain sample is obtained using a lever mounted to the Leg Weldments.
5. SQ Dryers: The wet grain sample is obtained using a lever mounted on the rear bulkhead of the Dryer.
6. Dry samples:
7. MEYER®-S and BCT Tower Dryers: The dry sample must be obtained between the Dryer discharge and the elevating leg as installed by the customer.
8. SQ Dryers: The dry sample port is located on the bottom of the dry conveyor just before the grain exits the conveyor.
9. 3. Obtain a uniform grain sample by collecting eight (8) 1-cup samples of grain at fifteen (15)-second intervals. Mix the collected sample for an accurate test.
10. 4. Test the grain sample’s moisture and temperature using a reliable bench moisture tester.
11. 5. Enter testing results into the QUANTUM® OFFSET screens to complete the calibration procedure. Note: It will take five (5) calibrations to make a complete offset correction.