Defender Series

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Accurate, Reliable & Portable Primary Calibrators  - For fast calibration of air sampling pumps

Backed by Proven DryCal Technology for fast,1% of reading calibrations of personal sampling pumps, the Defender 510, the enhanced Defender 520, and the standardizing Defender 530, give you the flexibility to do as much as you need while you work to defend lives. The Defender Series has it all.

For use with non-corrosive, non-condensing, non-combustible gases, less than 70% humidity.

Definer Series

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Laboratory & Field Ready Primary Calibrators - For critical industrial & environmental applications

Now more than ever, modern industry requires precisely-honed process control systems. Requirements, standards and competition have become so demanding, and the margin for error so slim, that for many organizations, 2% or 3% of reading standardized accuracy is no longer enough.

The Definer 220 allows users to verify gas flow rates, in the field or in the lab, to an accuracy of 1% percent of reading, including temperature and pressure compensation. Unlike thermal mass flow meters, the Definer 220?s positive displacement technology provides immediate indication of actual volumetric gas flow rate accurately and independently of gas type. Integrated temperature and pressure sensors in the flow stream allow users to automatically standardize volumetric flow readings to standard conditions, for traceable verifications of mass flow devices.

The Definer 220 represents the next generation of Proven DryCal Technology developed specifically for critical industrial and environmental applications. It provides the accuracy, customization and durability needed in today's exacting, fast-paced workplace.

For use with non-corrosive, non-condensing, non-combustible gases, less than 70% humidity.

DryCal 800 Series

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High-Precision Primary Flow Standards  - For laboratory and industrial process control applications

As a replacement for the ML-800 base, the new DryCal 800 base has been enhanced with:

• A 4.3” Resistive Touch Screen
• USB and RS-232 Interfaces
• Firmware Updates through a Communication Port (No Disassembly Required)
• New High Efficiency Electronics with Minimal Heat Generation (Eliminates a Potential Source of Measurement Uncertainty)
• Low Profile Design (Provides Increased Stability)
• Compatible with All Existing ML-800 Flow Cells and Software

With the new DryCal 800 base, you still receive the same exceptional low uncertainties you have come to expect from our high-precision primary flow standards. It meets the most stringent laboratory and industrial process control requirements, making it the ideal solution for demanding process control and calibration professionals around the world:

• Precise, Primary Measurements
• Demonstrated On-Site Durability
• Broad Flow Range 0.5 sccm to 100 slpm

The DryCal 800 Series combines Proven DryCal Technology with interchangeable flow cells to offer a broad flow range that fits the needs of your application. Combine the DryCal primary piston provers with the new Integrator Pro to set up an analog MFC and MFM calibration station and power to control up to two voltage and two current mass flow devices at the same time.

For use with non-corrosive, non-condensing, non-combustible gases, less than 70% humidity.