F&J Specialty Products, Inc.

- Model SRS-28BMHT - Cart Mounted Low Volume Air Sampler (100 - 120 VAC)



The Model SRS-28BMHT heavy duty hand truck mounted mobile low volume air sampler designed for outdoor use with an adjustable, aluminum sampling gooseneck. The adjustable gooseneck permits sampling at heights varying from 4’ to 7’ above floor level. Model SRS-28BMHT contains a standard rotameter for flow measurements. The air sampler is contained in a powder coat painted environmental enclosure mounted ~ 4 inches above ground level.

Model SRS-28BMHT includes GFCI protection and the card mounted filter holder with a quick disconnect fitting.

The SRS-28BMHT Air Sampler includes an oil-less, carbon vane vacuum pump with a constant airflow regulator for use where a nearly constant airflow is desirable. The regulator holds a constant pressure drop across an in-line orifice by varying the flow through a bypass valve into the pump. This system allows the pump to work at a minimum pressure drop at all times, permitting it to run cooler, thus extending its lifetime. The oil-less pump requires no lubrication to maintain optimal efficiency during its service life. The pump is mounted on a rugged mobile hand truck with two 10.5” diameter pneumatic tires to facilitate mobile transportation of the unit.

The SRS-28BMHT is designed for continuous indoor or outdoor use. Please consult the product specifications for the design temperature range and the installation category.

  • Constant air flow regulator adjustable
  • Easy access powder coat painted enclosure with exhaust fan
  • Durable 1/4 HP oil-less carbon vane pump designed for continuous use
  • Internal intake and exhaust mufflers
  • Rotometer, flow measurement system
  • Heavy-duty hand truck with 10.5” pneumatic tires
  • Weather resistant designed for outdoor use
  • Pressure gauge
  • Pressure needle valve for easy calibration verification
  • GFCI Protection
  • Card Mounted Filter Holder
  • 100-120VAC, 50/60Hz; single phase

  • PUMP TYPE: Oil-less, carbon vane 1/4 HP, 1725 RPM @ 60 Hz
  • 35 CFM (100 LPM) at 0” Hg Pressure drop
  • ULTIMATE VACUUM: 25” (635 mm) Hg at sea level
  • POWER REQUIREMENTS: 100 – 120VAC, 50/60 Hz; 10 amperes; single phase
  • ELECTRICAL CORD: All temperature, 3 wire, 14 gauge
  • THERMAL OVERLOAD PROTECTION: Furnished as an integral part of the motor
  • CONSTANT AIRFLOW REGULATOR: Aluminum construction with silicone diaphragm; adjustable from 0.5 to 35 CFM (10-100 LPM)
  • DIMENSIONS: 24”L × 21”W × 55”H (61cm × 53 cm × 140 cm)
  • SAMPLING GOOSENECK: Adjustable from 4’ to 7’ (121 cm to 213 cm) sturdy aluminum
  • WHEELS: 10.5”D, pneumatic tires
  • WEIGHT: 80 lbs. (36 kg)
  • INSTALLATION CATEGORY: Pollution Degree 3
  • OPERATING TEMPERATURE RANGE: 20º to 122ºF (-7º to 50ºC)
  • CALIBRATION: Calibration verification 1 per year
    • Two handles
    • Exhaust fan; 100 CFM
    • Easy-open maintenance door
    • Removable top
    • Multi-louvered sides

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