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Data Sheet PDF | Instruction Manual PDF
Description
The Testo 511 is a professional, pocket-sized absolute pressure meter engineered for accurate process verification, environment monitoring, and cross-parameter compensation. This compact diagnostic instrument tracks low-to-mid range absolute pressure fields from 300 to 1200 hPa with high precision. It is heavily utilized to perform density compensation during aerodynamic flow measurements inside ventilation ducts, laboratory hoods, and cleanroom production streams. By entering the localized elevation above sea level, the device instantly calculates true barometric air pressure and can execute differential barometric altitude measurements between distinct reference points. Housed in a lightweight field casing rated to IP40 requirements, it supports 8 selectable structural pressure units.
B2B Applications
- Air Flow Density Compensation: Providing precise real-time ambient pressure reference loops to adjust volumetric air velocity data inside laboratory processes.
- Barometric Altimeter Surveys: Measuring micro-barometric variations to calculate vertical altitude gradients between two physical locations during site engineering.
- Industrial Quality Control: Stationary and mobile absolute pressure checks inside industrial cleanrooms, clean gas environments, and assembly facilities.
Technical Parameters
| Absolute Pressure Range | 300 to 1200 hPa |
| Pressure Measurement Accuracy | ±3 hPa ± 1 digit |
| Scale Matrix Resolution | 0.1 hPa |
| Measuring Refresh Rate | 0.5 s |
| Housing Protection Index | IP40 (Protective field cap included) |
| Operational Battery Longevity | 200 hours average (powered by 2 x AAA batteries) |
Package Contents
- Testo 511 pocket absolute pressure meter
- Plug-on protective safety cap
- Belt pouch and rugged wrist strap
- 2 x AAA micro batteries
- Factory calibration protocol