EMERGENCY RESPONSE AIR SAMPLING SYSTEM

Digital Flowmeter Technology
Model DF-AB-20L

• NOTABLE FEATURES:
  
• State-of-the-Art Electronics
  
• Operating Modes
  
• Line Power (110VAC – 250VAC)
  
• On-Board Batteries
  
• Automobile Cigarette Lighter
  
• Long-lasting Lead Acid Batteries
  
• Battery Charging Circuit operable from Line Power Input
  
• Lightweight — ~19 lbs. (8,6 kg)
  
• Maximum Flow 17 to 20 LPM Maximum; typical
  
• Bright LED Display
  
• Automatic Flow Control Feature
  
• Flowrate and Volume totalizations displayed are corrected to a factory settable Reference
  
• Temperature and Pressure (4 options available)
  
• Auto shut-off on time or volume
  
• Battery Life Indicator

GENERAL DESCRIPTION:
F&J Model DF-AB-20L is a lightweight, small footprint, DC voltage powered air sampling system operable from (1) on-board 12 Ah Lead Acid battery, (2) line power, or (3) vehicle cigarette lighter socket.

The DF-AB-20L 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
approximately 25hours utilizing 47 mm 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. The air sampler is contained in a lightweight small dimensioned enclosure which is water tight. The unit can be carried very easily by its large, rugged plastic handle.

DF-AB-20L Battery Powered Air Sampler Specifications

Pump Type: Dual diaphragm high efficiency
Maximum Flowrate: 17-20 LPM typical with 47 mm glass fiber media
Power Source:
Internal –
12VDC Battery Pack
Lead Acid; 12 VDC / ~ 12 Ah
External –
Line Power; 110VAC or 250VAC
Vehicle Cigarette Lighter – 12VDC
Battery Charging System: Internal System which charges from line power.
Operating Time on Batteries: ~ 25 hours
Current Draw: 0.6 A maximum
Filter Holder Fitting: 3/8 FNPT quick disconnect
Handle: Durable plastic
Weight: 19 lbs. (8,6 kg)
Dimensions: 14.5”L × 8”W × 10” H (36,8 × 20,3 × 25 4 cm)
Display: Bright LED (6 character, 1,2 cm H)
Elapsed Time: DD:HH:MM up to 168 hours
Timer Accuracy: 0.1%
Flow Control: Adjustable from keypad between 5 - 20 LPM
Flow Accuracy: ± 4% of Full Scale
Volume Accuracy: ± 3%
Factory Settable Reference T and P
Classical STP 0ºC, 1 ATM
Normal T and P 20ºC, 1 ATM
Modified Normal T and P 70ºF, 1 ATM
Standard Ambient T and P 25ºC, 1 ATM

OPTIONS:

• Data Storage Device (P/N: 232FCDSD)
  
• 2 GB Secure Digital Card (P/N: 372239)
  
• Flash card Reader (P/N: SDDR-199-A20)