AAF International Shield Detecting Unit - Manual (Page 2)

2
Figure 1 — SAAFShield ™ Detecting Unit with internal components labeled
Cutouts for
airflow
Outside casing
EVA foam
spacers
2.0 Components
Figure 1 shows the SAAFShield Detecting Unit with the internal
components labeled.
The SAAFShield Detecting Unit Real-time Reactivity Monitor includes
the following components:
• (1) Oscillator Printed Circuit Board (PCB)
• (3) Connector slots for Quartz Crystal Microbalance (QCM) PCBs
• (1) Black plastic thermoplastic case with airflow zones and
protective cage
• (1) Connector slot for interfacing with the SAAFShield Reading
Unit
• (3) QCM PCBs (packaged separately)
IMPORTANT: To open the QCM PCB package prior to installation,
please carefully follow the instructions supplied below. Mishandling
the QCM PCB can cause irreparable damage.
Ribbon cable connector slot
(connects to Reading Unit)
Oscillator
PCB
Connector slots
(connects to QCM-PCB)
QCM PCBs
3.0 Installing Quartz Crystal Microbalance (QCM)
Tools Required:
• Philips head screwdriver
• Scissors, exacto knife, or razor blade
Instructions:
1) Ensure that the Electrostatic Discharge (ESD) protected bag
contains the appropriate QCM (Gold, Silver, Copper) that you would
like to install. See Figure 2.
2) Carefully cut open the ESD bag and remove any protective
packaging around the QCM PCB.
3) The QCM-PCB has a protective black foam backing – do not
remove this foam.
4) You will need to remove the plastic protective banding from the
QCM to expose the reactive elements on the QCM. Carefully cut one
end of the plastic protective banding as shown in Figure 3 with a razor
blade or exacto knife.
CAUTION. In some instances, the plastic band material may be tightly
adhered to the metal cap. This is done to provide a tight seal on the
cap and ensure complete protection of the QCM reactive element
during shipment. Please do not force open the metal cap. Doing so
may cause irreparable damage to the QCM’s reactive element within
making the device non-operational. It is advised that the metal cap be
gently removed from the QCM and handled carefully at all times.
Figure 3 Figure 2