Bios Defender 510 Primary Air Flow Calibrator
Operation Manual
Product Brochure
Low Range: 5mL-500mL/min $67.50 $157.50  $450 
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Medium Range: 50mL-5,000mL/min $67.50 $157.50  $450 
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High Range: 300mL-30,000mL/min $67.50 $157.50  $450
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The Bios Drycal Defender 510 is the next generation Drycal DC-Lite dry design that provides users with a volumetric primary flow standard for industrial hygiene, environmental and laboratory applications.

Backed by Proven DryCal® Technology for fast, ±1% of reading calibrations of personal sampling pumps, the Defender 510 gives you the flexibility to do as much as you need while you work to defend lives.


  • A broad dynamic flow range displayed in – mL, L, cc, or cfm.
  • Proven – Instruments are manufactured and calibrated by a company accredited to the ISO 17025, ANSI Z540, and NIST Handbook 150 standards. Traceability to the International System of Units (SI) and NIST is verified by accreditation to the ISO/IEC 17025 by NVLAP under Code 200661-0.V
  • Take individual readings, continuous hands-free readings, or set to read in time intervals, anywhere from one minute up to sixty minutes between readings.
  • Integrated temperature sensors and pressure transducers – placed directly in the flow stream for optimum standardized results (Bios Defender 520 only).
  • Standardizing readings (530 model only).
  • Time intervals between measurements for checking personal sampling stability over a typical sampling period.
  • Field-friendly, rugged and lightweight design with molding in rubber grips and a a large, illuminated liquid crystal display and intuitive menu navigation.
  • Software – an integrated serial PC interface and software for bullet-proof transfer of flow data to a text file, and automatic recording and graphing of flow measurements. A software upgrade is available for the creation of air sampler profiles, sampler calibration data recording and storage, calibration report printing, and other capabilities.
  • RoHS and CE compliant for Europe (Restriction of Hazardous Substances).