ASTG Model 5000 – Portable Gas Purity Monitoring System provides continuous gas purity measurements based on the physical properties of gases present. Gas purity is determined by measuring the speed of sound in a resonant acoustic cell, alongside temperature in the gas mixture and knowledge of thermodynamic properties and molar mass. This allows the Model 5000 to achieve gas purity measurements up to 99.99% with an accuracy of approximately 0.1%.

The Model 5000 includes data on nearly 500 gases such as CO2, H2, SF6, N2, Ar, He and O2, accessible via a 7” touch screen panel or remotely through a digital interface. Users can also add gases to the data table. Additionally, ASTG has integrated electrochemical sensors capable of measuring H2O and O2 down to single-digit parts per million (ppm).

 

ASTG’s Model 5000 introduces an advanced capability to enhance gas purity research and monitoring. It offers consistent performance across various environments including laboratories, field operations, and mobile applications, supporting analysis of over 500 different gases. Designed for precision, stability, and portability, the Model 5000 operates efficiently with minimal power consumption and maintenance needs. Its rugged construction ensures reliability in challenging environments, including remote and high-altitude locations. All these features are available at a competitive price, delivering unparalleled precision and stability for your research and monitoring requirements.

 

Measurement Principles: Gas Purity (99.99%) – Speed of Sound via Resonant Frequency Detection

Detector: Resonant Acoustic Cell: Wideband Microphone

Sample Flow Cell: Electropolished 304 Stainless Steel

Concentration Accuracy: +/- 0.01 to 0.1 % typical(appl/gas species dependent)

Response Time: Electronic Response is T(90) in 10 seconds

Power Requirements: 120 VAC / 60 Hz, 230 VAC 50 Hz

Battery Life: 2.5 hours on full charge (standard), 5 hours option is available

Operating Temperature: -20 to +70 Deg C (max)

Operating Pressure: up to 150 psia (max)

Operating Flow Rate: up to 5000 sccm

Oxygen & Water Vapor Measurement Principles:

O2 – Electrochemical range: 0 – 1000 ppm

H2O – Impedance range: 0.01-23,000 ppm

Analog Outputs: 0-5V, 0-10V and 4-20mA

Digital Outputs: Modbus

Display: 7” Touch Screen

Dimensions: 22” W x 18” D x 9” H / 40 lbs