3
Figure 2. Typical placement for SAAFShield units.
3.0 Placement of SAAFShield Monitors
When determining the reactivity of a room or space within a building,
the SAAFShield should be placed in a location representative of the air
that contacts the electronics or materials being protected. If the
protected items are spread out within the space, then an approach,
similar to a thermostat should be used. If the protected items are
concentrated in one area inside the space, then a location as close as
possible to them is preferred.
When determining the condition downstream of a gas-phase filter or
scrubber to evaluate media performance and life, the SAAFShield
should be placed after the final particulate filter. This will protect it from
the majority of particulates and allow it to monitor the condition of the
outlet air. When the rate of corrosion begins increasing beyond what is
normal, it is time to change the media or filter.
4.0 Connecting to SAAFShield Detecting Unit
The SAAFShield Detecting Unit and Communications Module come
equipped with 26-pin ribbon cable connectors. To connect the CM to
the DU, first remove the CM cover and locate the ribbon cable connec-
tor at the top of the CM circuit board. (Figure 3)
SAAF™ Side
Access Housing
SAAFShield
®
Detect-
ing Unit
SAAFShield
®
Reading Unit
(for periodic data
SAAFShield
®
Communications Module
(for continuous
data transmission)
Computer Room Air
Conditioning Unit
(CRAC)
SAAF™
Recirculation Unit
SAAF™ Deep
Bed Scrubber
SAAF™
Pressurization and
Recirculation Unit
Figure 3.
