trapped air from the system. Make sure the aftercooler has the proper supply water temperature.

6.Set the process set point on the temperature controller.

7.After the proper pre-drying time for the initial hopper fill has elapsed, fully open the drying hopper slide gate.

Note: To allow proper residence time during continuous processing, maintain the material level in the hopper at the midpoint of the air trap assembly.

Auto-Tuning the Dryer

1.For Auto-tuning, press the Level Key once. The AT screen will show with the setting OFF.

2.Press UP arrow to change the setting to ON.

3.Press the Level Key again to the Temperature Screen. Your actual temperature will start to flash for about 10-20 minutes with the temperature fluctuating up and down during that period. After the flashing stops, it means auto-tuning has finished.

Shutting Down the Dryer

1.Turn off the conveying system supplying the drying hopper.

2.When processing is complete, close the hopper slide gate and shut down any in-line companion equipment, such as the aftercooler.

3.Turn the Dryer ON/OFF selector switch to OFF.

4.Turn the system ON/OFF switch to OFF.

5.If needed, empty the drying hopper.

6.For maintenance or a long term shutdown, open (de-energize) the electrical disconnects at the dryer and at the power drop.

15, 30, & 60 cfm Compact Dryers

19

Page 19
Image 19
Sterling 60 cfm, SDA Series 25-100 15 cfm, 30 cfm specifications Auto-Tuning the Dryer, Shutting Down the Dryer