The Crystal Engineering NV-4AA-300PSI-BARO is a multifunction data logger designed for professionals who demand precision and durability. With a pressure range of 300 psi and barometric measurement capability, this data logger delivers exceptional accuracy of up to 0.025% of reading, making it a reliable replacement for deadweight testers in many applications. Its rugged construction withstands harsh environments, including submersion in 3 feet of water, while its portability allows for on-site calibrations anywhere.
Key Features & Highlights
- Gauge and absolute pressure measurement up to 300 psi (20 bar)
- Differential pressure capability with 0.025% of reading accuracy
- Measures switch, voltage, current, and temperature
- 500,000 data points storage capacity
- 10 readings per second from 2 modules
- Replaceable CPF adapter to minimize wear
- Live graphical display without needing a PC
- PC connectivity for live viewing or export to tamper-proof digital records
- Temperature compensation from -20 to 50°C
- Includes A2LA accredited calibration certificate with test data at 5 temperatures
Applications
This data logger is ideal for field calibration, maintenance, and troubleshooting in industries such as oil and gas, chemical processing, pharmaceutical manufacturing, and utilities. Its ability to log pressure, temperature, and electrical signals makes it versatile for validating process instrumentation, verifying safety systems, and conducting routine audits.





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