Juniper Systems Allegro Desiccant Kit - Manual (Page 3)

Note: If a piece of Velcro is already attached to the inside of the Allegro’s PC
card door, remove the piece on the new pack that has the removable adhesive
cover and throw it away. Attach the desiccant pack to the piece of Velcro that is
already attached to your Allegro.
4. Close the door slowly while inspecting the newly installed desiccant
pack. Make sure the edges of the packet are far enough away from
the gasket so that it is not pinched by the PC Card door when it is
closed.
Caution: If the edge of the packet is pinched between the gasket and seal rim,
the door may not fully seal, thus compromising the waterproof integrity of the
Allegro.
5. Using a small flathead screwdriver (or coin), turn the screws a ¼
turn to the right to lock the latches on the PC Card door.
6. Replace the desiccant pack periodically as needed.
Indicating Silica Gel
We use an indicating silica gel that has been washed with a
concentration of cobalt chloride (a heavy metal salt). The cobalt
chloride is a deep blue color when it is dry and turns from blue to
purple to pink as it becomes saturated with moisture. Typically, the
color changes as the desiccant goes past 8% moisture levels (by weight)
and indicates it is time to replace the desiccant.
Upper Gasket Seal Rim
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PC Card Holder Tabs