Emergency Response Air Sampling System 12 Volt DC Air Sampler
with Digital Flowmeter Technology
F&J Model DF-40L-8 

• State-of-the-Art Electronics
• Operating Modes
  — Line Power (110VAC – 250VAC)
  — On-Board Batteries
  — Automobile Cigarette Lighter
• Long-lasting Nickel Metal Hydride Batteries
• Battery Charging Circuit operable
  from Line Power Input
• Lightweight — ~9 lbs. (4 kg)
• High Flow — 35 to 40 LPM Maximum: 35 LPM typical with 47mm glass fiber media (98% DOP efficiency)
• Bright LED Display
• Automatic Flow Control Feature
• Flowrate and Volume totalizations displayed at actual conditions or corrected to STP is operator selectable.
• Auto shut-off on time or volume
• Battery Life Indicator

The DF-40L-8 is well suited for emergency response sampling activities where users do not know whether line power will be available. Typical operating time from on-board batteries is greater than 6 hours utilizing 47mm glass fiber filter paper.

The automatic flow control feature with the F&J Digital Flowmeter technology provides maximum flexibility for emergency response sampling responsibilities. The set flowrate is maintained automatically in case of dust loading and does not require operator attention.

Typical flow range is 10-35 SLPM (0.3 -1.2 SCFM).