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3580 Haven Avenue, Redwood City, California 94063 * (650) 365-6567 

Fax: (650) 365-5845 * (800) 822-3940 

E-mail: [email protected] 

Web Site: www.spectrex.com

 

 

OPERATING MANUAL 

PAS-500 Personal Air Sampler 

 

 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 

 
 
Contents of Kit: 

 

 PAS-500  Sampler 

  Holder for 6mm charcoal tube 

 Screwdriver  

 Instruction  Manual 

 

One 9-volt battery

 

 

Purpose: 

The PAS-500 is a Personal Air Sampler for moving air through an external collection 

device, such as charcoal or other sampling tube. Weighing only 4 oz. and furnished with a 

special “shirt-pocket clip”, it can be worn in a shirt pocket or on a lapel. 

 

Features: 

-  Battery, pump, electronics and detector all in one compact, rugged module.   

Eliminates cumbersome Tygon tubing and charcoal tube holder clipped to lapel. 

-  Light (4oz.) and compact, with flame-retardant case. 

-  Special pocket clip ensures unit stays firmly in pocket. 

-  Flow range: 5-350 ml/min. 

-  Flow regulation: A constant voltage is applied to pump as 

battery voltage drops. 

-  Low power consumption. A low cost (less than $2.00) alkaline battery is sufficient for 

a 40 hour work week at 50cc/min. 

-  Easily replaceable 9-volt battery. NiCad, zinc-carbon, and alkaline types are 

interchangeable. 

-  Adaptable – Accepts 6 mm diameter (single and double) and 8mm diameter 

charcoal tubes, other absorber tubes, and Draeger & Kitigawa colorimetric tubes. 

-  Intrinsically safe. Current-limiting resistor in battery circuit prevents danger of short-

circuit sparks. 

-  Optional clip set if wearer does not have a pocket. 

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