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Portable Drying Unit (PDU)

Operating Instructions

Z022-13  01/20

P +61 (0)8 8152 9390 

E info@ziltek.com 

W ziltek.com

The Portable Drying Unit (PDU) can be operated using the batteries provided, a 12 volt vehicle power 

outlet or from mains power. The following instructions are for battery power, instructions for other power 

sources are provided on page 5. 

Warming up the Portable Drying Unit

1. 

Ensure the battery is fully charged (refer to “Charging the Battery” on page 5). 

 

•     Ensure the drying rack is within the unit.

 

•     Ensure the lid is closed.

2. 

Ensure battery is connected. Open battery cavity (slide located on right side of PDU) and ensure 

male and female white clips are connected to battery.

3. 

Push the “Power” switch to the “Hot” position. This will turn the PDU on. The thermostat will already 

be pre-set by Ziltek to the temperature desired by the client. The red heating light will come on. It is 

located at the top left corner of the thermostat display next to the “Hot” label. The large internal fan 

will circulate the air in the box to provide even heating.

4. 

The PDU will heat up to the pre-set temperature. This will take approximately 20-30 minutes in 

ambient temperatures of 18-20

o

C when the set temperature is 40

o

C. This warm up time will vary 

depending on ambient temperature. 

5. 

It is suggested that you undertake your soil sampling while the device is reaching temperature.

6. 

Once the pre-set temperature has been reached, a small fan at the rear of the unit will operate to 

draw new air into the PDU and exhaust the warm, humid air. The unit is now ready to dry samples.

Purpose

These instructions outline how to dry soil samples for RemScan using the Portable Drying Unit.

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