Precisive 5 compact hazardous area-compliant gas analyser

The Precisive 5 is a compact hazardous area-compliant package for unattended hydrocarbon process and natural gas analysis, using Precisive’s tunable filter spectroscopy (TFS) platform.

Precisive specialises in unattended, all-optical process monitoring sensors for a variety of natural gas, LNG/LPG/BOG, combustion, emissions and biogas applications. Quantitative analysis of alkane gases, specifically C1 to C5 (methane, ethane, propane, butanes and pentanes), and other light hydrocarbons is important in a variety of applications, including BTU measurement and quality analysis of natural and biogas products.

The predominant measurement technique until now has been gas chromatography (GC), which has the ability to separate individual compounds with high selectivity, albeit with its slow response and high infrastructure requirements. For faster measurement requiring only a single heating value measurement, residual oxygen calorimetry is often used.

The Precisive 5 gas analyser requires no carrier gases, no calibration gases and offers fast-response analytics without compromising accuracy, repeatability, linearity or stability in the presence of interferences. Faster-response multicomponent analysis provides significant cost savings and efficiency gains in power generation applications. Measurements take seconds rather than minutes with GC-based systems.

A Modbus communications interface enables remote and unattended deployment without constant operator intervention. Novice users can become very proficient with minimal training.

The Precisive 5 is compliant with North America Division System (Class1Div2, Groups A/B/C/D, T4, Type 4X), North America Zone System (Class1, Zone2, Aex nA IIC T4, IP66, Ex nA IIC T4, IP66), European Zone System (EX II 3G n IIC T4 Gc) and worldwide certification to IECEx standards.