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CF-993B: Fixed Speed, Internal Battery & Charger

Internal Battery Operated Portable, Fixed Speed Air Sampler

HI-Q's CF-993B & CF-993B-4 are ideal for remote location air sampling where line power is not available. An internally mounted sealed 12 Volt battery and battery charger eliminate the need for the transportation of cumbersome battery cables and the awkward handling of heavy batteries. The timer has 10 programmable timing functions with a wide time range. The flow rate of the CF-993B series air samplers are dependent upon the pressure drop across the collection filter media being used. If line power is available, sampling time can be extended by running line voltage to the charger while sampling. Due to the difference in Amp draw of the motor versus amperage output of the charger in the standard CF-993B, the unit will eventually stop running and need to be fully recharged. Upon Ordering, please specify intended filter media type and size.

Continuous AC powered air sampling is now possible on the CF-993B & CF-993B-4 with the addition of HI-Q's optional, internally mounted, AC/DC RELAY. The "AC/DC Relay" can be added to existing, or supplied with new units to allow continuous sampling where AC Power is available.

  • Internally Mounted 12 Volt Battery & Battery Charger
  • Timer Controlled Air Sampling (Programmable)
  • Instantaneous Air Flow Rate Indicator
  • N.I.S.T. Traceable Calibration
  • 2-Stage Brushed Blower
  • For Continuous or Intermittent Use
Motor/Pump 12 Volt DC, 8.5 Max Amp Draw, 2-stage, centrifugal blower.
Battery 12V, 26 A.H., Sealed/Maintenance-Free Rechargeable Battery. Average continuous run time is over 2 hours when used @ ambient conditions and a draw of 8.2 Amps.
Battery Charger Internally mounted, solid state 12 volt DC charger. Nominal output current of 4.0 Amps with supply voltages of 110/120 VAC, 60 Hz. A lower output current of 2.0 Amps if using switchable style 230/115 VAC, 50/60 Hz charger.
Battery Specs. 18.7 lbs., sealed construction, immobilized gel electrolyte.
Unit Weight 36 lbs. (with internal Charger & Battery)
Shipping Weight Total 39 lbs., 2 Boxes 8" x 8" x 6" & 13" x 11½" x 16¼"
Housing 10¼" x 10" x 14¼", Aluminum cabinet, primed & painted with 2-component polyurethane paint.
Max Flow Rate
95 LPM (w/ FP2063-20, 2" Dia.) & 55 LPM (w/ FP5211-20, 2" Dia.)
Max Flow Rate
185 LPM (w/ FP2063-102, 4" Dia.) & 142 LPM (w/ FP5211-102, 4" Dia.)
Filter Holders & Adapters See Filter Holders
Flow Calibrator See Air Flow Calibrators
Filter Paper See Filter Paper For Air Sampling
Filter Cartridges See Analytical Cartridges

Ordering Information


Battery operated air sampler complete with internally mounted 115VAC battery charger (4.0 Amp output), 12VDC, 26 A.H. Battery, American Type 16/3 grounded cord. Standard Flow Range of 10-120 LPM. Includes 1½" Female Straight Pipe Thread for "CF" series holders. Specify intended filter media/size upon ordering.


4" Diameter paper only, battery operated air sampler complete with internally mounted 115VAC battery charger (4.0 Amp output), 12VDC, 26 A.H. Battery, American Type 16/3 grounded cord. Standard Flow Range of 40-195 LPM. Use HI-Q's FHA-4CF to adapt down to female 1½" dia. SPT fitting, to accept "CF" series filter holders. Specify intended filter media/size upon ordering.



Unit as described above with switchable 230/115 VAC battery charger. Nominal output current from charger is 2.0 Amps.

Options & Spare Parts


Internally Mounted AC/DC Solid State Relay module with rectifier for CF-993B Series Air Samplers. Allows user to use system as a DC or AC powered unit.


Replacement Motor Brush Set, 2 Brushes/Set.


Replacement 12 volt DC, 26 Amp Hour Battery. This maintenance free, immobilized electrolyte battery is packaged in a high impact resistant ABS plastic case.