DryCal® 800
High-Precision Primary Flow Standard for Laboratory & Industrial Applications
The DryCal® 800 is a high-precision primary piston prover designed for metrology, laboratory calibration, industrial process control and R&D applications. Combining Proven DryCal® Technology with five interchangeable flow cells, it provides direct gas flow measurement across an exceptionally broad range from 0.5 sccm to 100 slpm.
The DryCal 800 provides both volumetric and standardized flow measurements and can operate in pressure or suction applications. Its interchangeable cell design allows one electronic base to cover multiple flow ranges while maintaining measurement uncertainty as low as ±0.15% of reading.
For use with non-corrosive, non-condensing, non-combustible gases at less than 70% humidity.
Documentation & Resources
Technical documentation, application resources, operation videos and calibration information from Mesa Labs.
Five Interchangeable Flow Cells
| Model | Flow Range | Standardized Accuracy | Time per Reading | Weight |
|---|---|---|---|---|
| 800-3 | 0.5–50 sccm | ±0.25% + 0.002 sccm | 1–60 sec. | 2300 g |
| 800-10 | 5–500 sccm | ±0.15% | 3–135 sec. | 2412.5 g |
| 800-24 | 50–5,000 sccm | ±0.15% | 3–90 sec. | 2439.3 g |
| 800-44 | 500–50,000 sccm | ±0.15% | 1–35 sec. | 2507 g |
| 800-75 | 1–100 slm | ±0.15% | 1–50 sec. | 4535 g |
Performance & Features
- Primary positive-displacement piston prover
- Volumetric and standardized flow measurements
- Pressure or suction flow modes
- 100:1 turndown ratio
- Gas-species-independent direct flow measurement
- Integrated temperature and pressure sensors in the flow stream
- Single, Continuous and Burst measurement modes
- 4.3" resistive touchscreen
- USB and RS-232 communication
- Firmware updates through communication ports
- Operating temperature: 15–30°C
- Operating pressure: atmospheric to max. 15 PSIA
- CE / RoHS compliant
- DryCal Pro software compatible
MFC & MFM Calibration
Combine the DryCal 800 with Mesa Labs Integrator Pro to create an analog MFC and MFM calibration station. Integrator Pro powers and controls mass flow devices and communicates with the DryCal Metrology Series primary piston prover for precise calibration.
Learn more about Integrator Pro ↗Calibration & Traceability
Mesa Labs recommends annual calibration and service of the DryCal 800 to maintain measurement accuracy and provide a defensible audit trail. The DryCal 800 is supported by Mesa Labs' ISO/IEC 17025 accredited gas-flow calibration capabilities.




