Teledyne 2101 Hydrophobic Filter 5.5 How to Obtain Service, Field Wizard Maintenance

2101 Field Wizard Section 5 Maintenance

5.4 Hydrophobic Filter

5.5 How to Obtain Service

Teledyne Isco, Inc.

Technical Service Dept.

P.O. Box 82531

Lincoln, NE 68501 USA

Phone: (800) 228-4373 (402) 464-0231

FAX: (402) 465-3085

E-mail: service@isco.com

oven at 212° to 350°F (100° to 175°C) for two to three hours, or until the blue or yellow color returns. Allow the desiccant to cool and store it in an airtight container until ready for use.

If the Field Wizard module is submerged, a hydrophobic filter prevents water from entering the desiccant cartridge. Any amount of water will plug the filter and it must be replaced so the case will be reliably ventilated. Ventilation is needed to equalize pressure within the Field Wizard to prevent the keypad label from warping.

To remove the hydrophobic filter, grasp the filter and pull it from the desiccant cartridge collar. The filter is only held in place by its friction fitting; rocking it back and forth while pulling may help. Firmly press the replacement filter (Isco P/N 60-2005-003) in place.

If the hydrophobic filter frequently requires replacement, you should consider relocating the modules so that they are better protected. Alternatively, replace the existing hydrophobic filter with the reference extension accessory package included with your unit. Follow the instructions above to remove and replace the filter. Locate the other end of the tubing in a dry location and secure it.

The internal components of the Field Wizard are not user-ser- viceable. The case is completely sealed to protect the internal components. To repair the unit, the case must be broken open and replaced. If you think your module requires repair, contact Teledyne Isco’s Technical Service Department.

Corresponding with a Teledyne Isco Technical Service Represen- tative can often resolve the problem without the need to return the item. If the difficulty cannot be resolved you will be issued a Return Authorization Number (RAN) and information on returning it to the factory.

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