5.START-UP AND OPERATION

d.Why take several samples? The electronics average the grain moisture and therefore it is possible to have a sample that is either wetter or dryer than the meter is reading (if the meter is changing rapidly while sampling).

e.Take samples at the discharge, not from the storage bin, when monitoring a drying operation. If you do not have a sampler at the discharge, contact your dealer and have one installed. See the following (Calcu-U-Dri Moisture/Matic Sampling Chart).

Calc-U-Dri Moisture/Matic Sampling

The Chart shows grain moisture readings (from a real situation) as they should be taken to

obtain a realistic moisture value.

 

Calcu-U-Dri

 

Dole

Elevator

 

 

 

 

 

 

 

Time

Temperature

Moisture

Temperature

 

Moisture

Moisture

 

 

 

 

 

 

 

 

 

 

 

 

 

 

9:33 AM

112

14.4%

109

 

14.7%

 

 

 

 

 

 

 

 

9.36 AM

112

14.4%

111

 

14.4%

 

 

 

 

 

 

 

 

9.38 AM

108

16.0%

107

 

17.5%

 

 

 

 

 

 

 

 

9.40 AM

110

14.6%

109

 

14.7%

 

 

 

 

 

 

 

 

9.43 AM

108

15.9%

104

 

17.3%

 

 

 

 

 

 

 

 

9.50 AM

111

14.5%

107

 

15.0%

 

 

 

 

 

 

 

 

Total

 

89.8

 

 

93.6

 

 

 

 

 

 

 

 

Average

 

15.0%

 

 

15.6%

15.3

 

 

 

 

 

 

 

Question : Where would you set the moisture offset, +0.3 or +0.6?

Answer : Most would want to set it to +0.3 which would make it match the point of sale’s moisture reading.

5.The moisture Set Point is adjusted by turning the Set Point adjustment knob while holding the “Display Set Point” paddle switch down. Turning the knob clockwise will increase the moisture Set Point and counterclockwise will decrease the moisture Set Point (0 to 25).

Note: The Set Point will change whenever the knob is moved.

6.Adjust the main speed adjustment knob to the desired discharge rate. This is the typical metering roll speed required to obtain the desired discharge moisture.

7.Switch the mode switch to “Automatic” and the Moisture/Matic will start to control the speed of the dryer metering rolls. The dryer will operate at “Low” speed when the moisture content displayed on the meter is wetter than 0.3 percent or more than the moisture Set Point. It will operate at “Main” speed when the moisture displayed is within +0.3 percent or -0.3 percent of the moisture Set Point, and will run at “High” speed when the moisture is 0.3 percent or more below the moisture Set Point.

PNEG-1153 CALC-U-DRI Moisture/Matic/Manager

19