Labconco Protector Demonstration Hoods 3945021 - Manual (Page 33)

Chapter 6: Maintaining Your Protector Demonstration Hood
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Guardian™ Digital 1000 Kit No.
3908800 or 3908801
Guardian Digital 1000 Operation
The Guardian Digital Airflow Monitor consists of the airflow sensor, the
Alarm Unit and the 15 VDC power supply. For 115V operation the alarm
unit is powered by plugging the power supply into the factory-prepared
digital airflow monitor socket. For 230V operation, the Alarm Unit is
powered by plugging the power supply into a building outlet. The alarm has
“Enter”, “+”, and “-” buttons to program the monitor. There is also a green
LED “SAFE”, yellow LED “CAUTION”, and red LED “LOW” with audible
alarm for airflow conditions. The audible alarm can be permanently muted if
desired. The Guardian Digital 1000 Airflow Monitor displays a face velocity
value, provides an RS232 communications port to a PC or building computer
system, can be configured for external input connections such as night
setback or external alarm and provides up to three output relays that can be
configured. For complete detailed information, please refer to the separate
Labconco 1000 Alarm User’s Manual provided with the enclosure.
Guardian Digital 1000 Installation Procedure
1. The enclosure comes prepared to accept the Guardian Digital airflow
monitor system.
2. First remove the large 1.19" dia. gray hole plug. See Figure 6-5. See
Figure 6-6 only to reference internal assembly of the airflow monitor.
Locate the elbow, locknut, and washer and install it in the 1.19" dia.
hole per Figure 6-5 and Figure 6-6. The enclosure baffle pivots down
to install the elbow, washer and locknut.
3. Cut the 1" hose supplied with the kit to 10.5" approximate length and
install it between the airflow sensor and the elbow.
4. Secure the Guardian Digital alarm to the enclosure with double stick
tape as shown in Figure 6-7. The airway passage between the alarm
module and the enclosure is now complete.
5. Locate the metal hose cover and install with double stick tape per
Figure 6-3.
6. Locate the power supply transformer. One end should already be
connected to the two-pin connector labeled 15 VDC on the back of
the alarm module and through the strain relief bushing. If
disconnected, then reconnect to power the airflow monitor. Plug the
115V power supply into a standard 115V duplex receptacle, the back
of the accessory FilterMate portable exhauster or the back of the
accessory light. For 230V, plug into a standard receptacle with your
specific outlet plug. (It is recommended that the airflow monitor
be connected directly to the FilterMate switched auxiliary outlet
so the airflow monitor is powered at the same time.)
7. Installation is now complete.