Teledyne Field Wizard 2101 - Manual (Page 55)

2101 Field Wizard
Section 5 Maintenance
5-3
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.
5.4 Hydrophobic Filter 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.
5.5 How to Obtain Service 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.
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: [email protected]
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.