Accel 3302 manual HOW Tempest Works, Operation

OPERATION & MAINTENANCE

HOW DRYING IS ACCELERATED WITH TEMPEST®

Tempest® creates a two-step drying process when used with oil-base inks. These steps are:

1.Skinning the surface of the ink with the initial blast of hot air to prevent set off.

2.Accelerating the final drying process approximately 20o F over the cold stack temperature in the feeder. Heat accelerates the drying process, called oxidation and reduction, of oil-based inks.

In general, dryers including infrared do not work well with rubber or acrylic-based inks. These inks should be avoided when maximum results are desired.

HOW TEMPEST®

WORKS

1.When voltage is applied to the thermistors (triangular shaped objects arranged in a honeycomb pattern), the thermistors begin to heat. (Thermistors are coated semiconductors).

2.Thermistors heat to a predetermined temperature, in this case about 400o F, and remain at that temperature. This is known as autostabilization.

3.The fans blow air down towards and through the thermistors, creating a flow of hot air to the sheet.

4.Drying of the ink occurs in the two-step process as described above.

No dryer totally eliminates the need for spray powder. There may be some jobs, for example, a heavy solid on a high gloss sheet where powder is required. Overall, Tempest® should reduce your spray powder usage significantly, leaving you with a better printed product and cleaner working environment.

TEMPEST®	ON/OFF OPERATION
OPERATION	The switch is located on the side of the Tempest® box which
	provides power to the box. Select 1 for on and 0 for off.

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