Defender™ 530+
Standardized & Volumetric Primary Flow Standard
The Defender™ 530+ is Mesa Labs' most advanced Defender primary flow calibrator, designed for laboratory, manufacturing, air quality and gas sampling applications where both standardized and volumetric flow measurements are required.
Based on Proven DryCal® Technology, the Defender 530+ directly measures gas flow using positive displacement technology. It provides volumetric accuracy of ±0.75% of reading and standardized accuracy of ±1% of reading across three flow ranges from 5 ccm to 30 LPM.
Integrated temperature and pressure sensors measure conditions directly in the flow stream, allowing the instrument to automatically convert volumetric measurements to standardized flow. Direct primary measurement also makes the flow measurement largely independent of the gas species being measured.
For use with non-corrosive, non-condensing gases at less than 70% humidity.
Documentation
Current technical documentation and manufacturer information from Mesa Labs.
Three Flow Ranges
| Model | Flow Range | Volumetric Accuracy | Standardized Accuracy |
|---|---|---|---|
| 530+ L | 5–500 ccm | ±0.75% of reading | ±1% of reading |
| 530+ M | 50–5,000 ccm | ±0.75% of reading | ±1% of reading |
| 530+ H | 300–30,000 ccm | ±0.75% of reading | ±1% of reading |
Measurement & Operation
- Volumetric and standardized primary flow measurement
- Pressure or suction flow modes
- Single, Continuous and Burst reading options
- User-selectable averaging from 1 to 100 measurements
- Integrated temperature and pressure sensors in the flow stream
- Standardization pressure: 760 mmHg
- Volumetric units: mL/min, L/min, cc/min, cf/min
- Standardized units: smL/min, sL/min, scc/min, scf/min
- Temperature units: °C / °F
- Pressure units: mmHg / PSI / kPa
- Sensor Factor for alternate-gas MFC/MFM calibration
- RS-232 interface for real-time data capture
Integrated Temperature & Pressure Measurement
Unlike the Defender 510 and 520, the Defender 530+ can automatically provide standardized as well as volumetric flow readings. Temperature and pressure are measured directly in the flow stream and used for standardization.
- Temperature accuracy: ±0.8°C typical / ±1.3°C maximum
- Pressure accuracy: ±3.5 mmHg typical / ±7.0 mmHg maximum
- Operating pressure: Atmospheric to 15 PSI absolute maximum
- Ambient humidity: 0–70%, non-condensing
Laboratory & Field Ready
- Dimensions: 140 × 150 × 75 mm
- Weight: 820 g
- Backlit graphical LCD
- RS-232 data port and PC data cable
- 6V rechargeable sealed lead-acid battery
- 6–8 hours typical battery operation
- 1/4" ID Swagelok® compression fittings
- 3/8" fittings on High model
Real-Time Data with DryCal Pro
Connect the Defender 530+ to a PC through its RS-232 interface to capture flow data in real time using Mesa Labs DryCal Pro software and export measurement data for reporting and analysis.
Calibration & Traceability
Mesa Labs recommends annual verification of the Defender 530+ by an ISO/IEC 17025 accredited laboratory to maintain measurement integrity. Mesa's recertification service includes inspection, testing, available upgrades, calibration and a NIST-traceable calibration certificate.
