Labconco 3970202 User Manual - page 46

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Chapter 7: Accessorizing and Modifying Your Filtered PCR Enclosure

2.   Guardian™ Airflow Monitor 

The Guardian Airflow Monitor allows you to continuously 

monitor airflow through the enclosure.  The Guardian 

monitor can be placed on any Purifier Filtered PCR 

Enclosure.   

Description 

Order Part #’s 

Individual Parts Required 

Guardian Airflow Monitor 

115V or 230V 

1 ea. 

3811500 

Airflow Monitor Printed Circuit Board 

1 ea. 

3910700 

 Airflow Sensor w/ Connector 

2 ea. 

1885405 

#6-32 x .31” Phillips machine screw to 

mount Airflow Monitor Circuit Board 

2 ea. 

1891808 

#6-32 x .50” Phillips thread cutting screw to 

mount Airflow Sensor 

1 ea. 

3935501 

Upper Diffuser w/ Air cutout 2' 

1 ea. 

3935503 

Upper Diffuser w/ Air cutout 3' 

1 ea. 

3935505 

Upper Diffuser w/ Air cutout 4' 

3. Accessory Filters 

HEPA Filter 

HEPA Filter is 99.99% efficient on particles 0.3 micron. 

Width Catalog 

# 

Size 

2' 

3707900 

18" x 18" x 3.31" 

3' 

3707901 

30" x 18" x 3.31" 

4' 

3707902 

42" x 18" x 3.31" 

Prefilters (Roughing) 

A prefilter to extend HEPA filter life. 

Filter  

Catalog # 

Qty. 

2' 3935700  1 

3' 3935701  1 

4' 3935702  1