Juniper Systems Allegro Desiccant Kit User Manual

Desiccant Pack
Installation Instructions

Why Install a Desiccant Pack into the Allegro?

The Allegro is waterproof when the baery and PC card doors are
properly closed. However, the unit is built with a micro-pore lter
in the wall of the Allegro, which allows for a balance of atmospheric
pressure between the inside and outside of the case. This can allow
the passage of atmospheric gases, comprised mostly of nitrogen and
oxygen as well as the minor elements such as carbon dioxide and
water vapor.

In higher humidity environments, water vapor may collect inside
the case to a level sucient to cause condensation inside the case
when the Allegro is subjected to colder conditions. This condition
appears as fog inside of the touchscreen covering the display. Placing
a desiccant pack in the Allegro case can reduce the possibility of
condensation on the inside of the touchscreen.

Included Items

When you order a desiccant pack, you
receive two desiccant packs in a small, air­tight, resealable plastic bag. Each desiccant
pack is shipped with two small pieces of
Velcro. The rst piece is aached to the
desiccant pack, and the other is aached to
the rst piece of Velcro.

Items Needed

• Desiccant pack with two pieces of Velcro aached (included)

• Small athead screwdriver

Velcro with adhesive to attach to Allegro





Velcro attached to desiccant pack

Installation Instructions

To install a desiccant pack in the Allegro, complete the following steps:

1. Using a small athead screwdriver (or coin), turn the screws on the
PC Card door ¼ turn to the le to unlock the latches.

2. Remove the adhesive backing from the piece of Velcro aached to
the Velcro that is aached to the desiccant pack.

3. Aach the desiccant pack with the aached Velcro pieces so it is
about ¼ inch below the upper gasket rim and centered between the
PC card door holder tabs. Make sure the lower edge of the desiccant
pack sits directly above the PC Card holder tabs.

Make sure the transparent window is facing out so the color indicator is
visible.