|
Lab Hood
and BSC Monitors Links
|
|
Contact
ALNOR at:
1-800-424-7427
or +1 651-490-2811
|
|
Lab Hood and BSC Monitors
For safety and regulatory compliance reasons, it is essential to monitor
air flow in laboratory fume hoods, bio-safety cabinets (BSCs), or other
types of hoods in critical environments. Alnor AirGard® Lab Hood Monitors
and Air Flow Monitors provide visual and audible indications of safe levels
of air flow when installed on lab hoods or BSCs.
Designed to meet intent of:
| |
|
|
ANSI/AIHA
Z9.5-2003
3.3.3 Flow-Measuring Device for Laboratory Chemical Hoods
All hoods shall be equipped with a flow indicator, flow alarm, or
face velocity alarm indicator to alert users to improper exhaust flow.
|
|
|
NFPA
45-2000
6.8.7 Measuring Device for Hood Airflow
6.8.7.1 - A measuring device for hood airflow shall be provided
on each laboratory hood.
6.8.7.2 - The measuring device
for hood airflow shall be a permanently installed device and shall
provide constant indication to the hood user of adequate or inadequate
hood airflow. |
|
|
SEFA
1.2-2002
4.1.10 - All hoods shall have
some type of monitor for indicating face velocity or exhaust flow
verification… A ribbon taped to the bottom of the sash is not
acceptable. |
|
|
CFR Part 1910.1450
Appendix A - National Research Council Recommendations
Concerning Chemical Hygiene in Laboratories
C. The Laboratory Facility
4. Ventilation
(b) Hoods
…each hood should have a continuous monitoring device to allow
convenient confirmation of adequate hood performance before use. |
|
|
NSF-49-2002
5.23 Alarms
5.23.3 Type B exhaust alarm... Audible and visual alarms shall
be required to indicate a 20% loss of exhaust volume within 30 seconds... |
|
|
Products
For more information, choose from the following lab hood and air flow
monitors:
 |
 AirGard®
Lab Hood Monitors
Monitors with
visual and audible alarms ensure safe levels of air flow in
laboratory fume hoods. Excellent for new installations or retrofits. |
| |
|
|
 AirGard®
Air Flow Monitors
Indicate safe air flows for bio-safety
cabinets (BSCs) and other critical environments, including those
requiring an explosion proof monitor. |
| |
|
Selection Guide
| |
|
|
|
|
|
|
| Application |
Lab Hood Face Velocity |
Lab Hood Face Velocity |
Lab Hood Face Velocity |
Lab Hood Face Velocity |
Air Velocity(Laminar Flow, BioSafety Cabinet) |
Air Velocity(Laminar Flow, BioSafety Cabinet) |
| Measurement Range |
50-250 ft/minute |
50-250 ft/minute |
50-250 ft/minute |
0.07 – 0.15 in H2O |
50-2000 ft/minute |
50-2000 ft/minute |
| Measurement Accuracy |
5% of reading |
5% of reading |
5% of reading |
± 0.04 in H2O at min
± 0.06
in H2O at max |
5% of reading |
5% of reading |
| Mounting |
Flush |
Surface |
Flush |
Surface |
Flush |
Flush |
| Alarms |
Low |
Low |
Low, High |
Low |
Low |
Low, High |
| Visual Indication |
Normal, Alarm |
Normal, Alarm |
Normal, Caution, Alarm |
Normal, Alarm |
Normal, Alarm |
Normal, Caution, Alarm |
| Audible Alarm |
Yes |
Yes |
Yes |
Yes |
Yes |
Yes |
| Velocity Display |
No |
No |
Yes |
No |
No |
Yes |
| Bar-Graph Trend |
No |
No |
Yes |
No |
No |
Yes |
| Intrinsically Safe |
No |
No |
No |
Yes |
No |
No |
| Measurement Type |
Integral Thermal Sensor |
Integral Thermal Sensor |
Integral Thermal Sensor |
Pressure Switch |
Remote Thermal Sensor |
Remote Thermal Sensor |
| Power |
24VDC (Plug-In Wall Transformer Included in US) |
24VDC (Plug-In Wall Transformer Included in US) |
24VDC (Plug-In Wall Transformer Included in US) |
120VAC |
24VDC (Plug-In Wall Transformer Included in US) |
24VDC (Plug-In Wall Transformer Included in US) |
|
