Brandt Instruments Distributing BIOS International
Defender 510, 520 & 530 Primary Flow Calibrators
DryCal® Technology

DryCal Defender Air Flow Calibrators

Bios Defender 510 and Defender 520 Calibrators

Bios Defender 510 and 520 calibrators are true primary flow meters and are immune to flow source pulsation without the need for in-line dampers.  The Defender Series is more accurate and more repeatable than the predecessors, the DryCal DC-Lite and the DryCal DC-2.  Flow units may be set to ml, l, cc, or cf.  The Defender calibrators can be set to take individual readings, continuous hands-free readings, or set to read in user selectable time intervals. They can also be set to include up to one hundred readings in a group average. 

Each Defender instrument is shipped with Integrator 110 and Optimizer Collect Light datalogging software which allows for automatic recording and graphing of flow measurements.  The full Optimizer Collect software is available as a factory option or may be added later as a field upgrade, and allows the user to not only capture, but secure, organize, search and present data.

Bios Defender 530 Calibrators with Standardized Flow

The Bios Defender 530, with the ability to take both volumetric and standardized readings, is the latest addition to the popular Defender 510 and 520 line of Bios DryCal primary flow calibrators. Automatic correction of readings for temperature and pressure, rather than merely recording of ambient conditions, is essential for many applications.

Fully Automated Calibrations Using Optimizer Collect & Integrator 110 Software

Fully automated multi-flow tests can be easily performed for analog mass flow controllers (MFC), analog mass flow meters (MFM) and other flow devices. With the Excel interface, users can customize data capture and data reporting for any flow device including rotameters, turbine meters and wet/dry gas meters

Industrial Precision Air Flow Calibrators

Bios Definer™ 220 Primary Gas Flow Calibrator for Standardized Flow Verification

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. The Definer 220 is a field-hardy primary flow meter that is NIST traceable. Each Definer 220 is individually calibrated in the Bios ISO 17025-, ANSI Z-540- and NIST Handbook 150-accredited gas flow calibration laboratory.

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 comes standard with Bios Optimizer™ 110 software.

BIOS DryCal ML-500^® Air Flow Calibrator

Flow and mass-flow calibrator with less than 0.5% error, corrects mass flow to Standard Temperature and Pressure, continuous readout, simple push-button operation, NIST traceable calibration. Covers 5.0 sccm to 50 L/min with 3 field interchangeable flow-cells. Uses BIOS's dry-piston technology. 

Bios DryCal ML-800^® Primary Gas Flow Calibrator

The high-speed, mercury-free, Bios DryCal ML-800 is the most accurate piston prover with a  ±0.15% accuracy of reading, not full-scale. The Bios DryCal ML-800 is available in three interchangeable flow cells to cover an ample measuring range, from 5 cc per minute to 50 liters per minute. Flows are automatically corrected to standardized temperature and pressure conditions using precision sensors within both the gas flow stream and the base unit for the highest degree of accuracy. Users can toggle between volumetric and standardized flow, simultaneously viewing the flow rate, average, and the number of averaged readings. Readings may be stored in non-volatile memory, downloaded into a PC spreadsheet, or printed to the optional battery-powered thermal printer. 

Bios has ISO 17025 accreditation by the National Voluntary Laboratory Accreditation Program (NVLAP) – the third party accrediting body of the National Institute of Standards and Technology (NIST).

Bios products are CE-approved, and test to the EMI standard (electromagnetic interference).

Bios products are in accordance with Directive 89/336/EEC, and conform to the following standards:

NF EN 61000-4-2-CEI 801-2
NF EN 61000-4-4-CEI 801-4
NF EN 55022
NF C 46-022-CEI 801-3

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PRODUCT DISCONTINUATION NOTICE

The DryCal DC-Lite and the DryCal DC-2 have been discontinued and superseded by the DryCal Defender 510 and Defender 520. Bios International will continue to support customers using DryCal DC-Lite and the DryCal DC-2.  Use the contact information on the bottom of this page to obtain additional information.

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