Chapter 5: Using the Protector Filtered Hood
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Lab Ambient Air Sensor
The third sensor is identical to the first sensor commonly referred to as the solvent
sensor. This sensor functions like the broad sensor and is used to monitor the air
quality in the lab.
Communication
The Protector Filtered Hood has three systems of communication with one system
standard and two systems optional as indicated below:
1. The onboard computer and display screen (see Chapter 8 for complete
alerts and alarms).
2. Optional gGuard software add on (see Appendix E).
3. Optional BACnet hardware add on (see Appendix F).
Technology Alerts
The following technology alerts are discussed, recognized and logged by each
Protector Hood with exception to the BACnet. For additional details on alerts and
alarms, see Chapter 6: Maintenance or Chapter 8: Troubleshooting.
8S-Sash Position Alert – Operating position programmed to campus or
company standard during installation. Moving sash higher set off alert.
8V, 8W & 8X High Temperature Alerts (3) – First level: Enclosure
temperature exceeded +104°F. Check all heat sources. Second level:
Critical temp +140°F. Fans stopped. Alert maintenance and fire
personnel. Final alarm: Temperature Sensor out of order.
Figure 5-5
Lab Ambient
Air Sensor
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