This was precisely the challenge faced by a Terpineol production plant in H\u00e0 Nam, Vietnam<\/strong>, which needed to measure the refractive index nD of essential oil in a Zone 0 area<\/strong>.<\/p>\n The selected solution was the Vaisala Polaris\u2122 PR53GCEX<\/strong> \u2013 an inline process refractometer designed for applications in potentially explosive environments, supporting Zone 0 configurations and meeting ATEX\/IECEx requirements according to the applicable certified configuration.<\/p>\n During the Terpineol production process, the plant needed to monitor the refractive index (Refractive Index \u2013 RI\/nD)<\/strong>of the essential oil.<\/p>\n Refractive index is an important parameter for monitoring the characteristics of a liquid and can be used as a basis for calculating concentration when combined with an appropriate concentration model.<\/p>\n However, the question is not simply:<\/p>\n \u201cCan the instrument measure nD?\u201d<\/strong><\/p>\n It is also:<\/p>\n \u201cCan the instrument be used safely in a Zone 0 area?\u201d<\/strong><\/p>\n Zone 0 is an area where a flammable gas\/vapor mixture may be present continuously or for long periods. Therefore, electrical equipment installed in this area must meet the appropriate explosion protection requirements and use the correct certified configuration.<\/p>\n For the plant, selecting a conventional measuring instrument could create risks related to:<\/p>\n The challenge:<\/strong> a solution was required to measure refractive index nD directly in the process while remaining suitable for a Zone 0 environment.<\/p>\n To address the above challenge, Filterfine Vietnam<\/strong> provided a solution using the Vaisala Polaris\u2122 PR53GCEX<\/strong> \u2013 an inline process refractometer designed for potentially explosive environments.<\/p>\n The Vaisala PR53GCEX is designed to measure liquid concentration in a process pipeline based on the refractive index of the medium. The instrument is suitable for a wide range of chemical applications, including acids, alkaline solutions, alcohols, hydrocarbons, solvents, and various other solutions.<\/p>\n In particular, the PR53EX series includes versions certified for use in ATEX\/IECEx Zone 0 and Zone 2<\/strong>. With the configuration intended for Zone 0, the instrument is designed to meet the requirements applicable to electrical equipment installed in hazardous areas.<\/p>\n Instead of taking samples out of the hazardous area for manual measurement, an inline process refractometer can be integrated directly into the process pipeline, providing measurement data directly from the process.<\/p>\n This approach helps reduce reliance on manual sampling operations and supports more stable process monitoring.<\/p>\n The Vaisala Polaris PR53<\/strong> uses an optical refractive index measurement principle<\/strong> to determine the refractive index of the process medium.<\/p>\n For the PR53 series, the published refractive index measurement range is:<\/p>\n 1.32\u20131.53 nD<\/strong><\/p>\n Resolution: 0.000001 nD<\/strong> The instrument also measures the temperature of the process medium. The measurement data can be used to calculate concentration through a predefined concentration model.<\/p>\n This is particularly useful in chemical manufacturing processes where companies need to continuously monitor process parameters instead of relying solely on laboratory testing of individual samples.<\/p>\n This is the most important factor in the project.<\/p>\n The PR53GCEX is available in configurations certified under ATEX\/IECEx for Zone 0, with the applicable configuration specified as Ex ia IIC T4\u2026150 \u00b0C (T3) Ga IP66<\/strong>.<\/p>\n As a result, measuring nD in a hazardous area is no longer only a question of measurement accuracy<\/strong>, but is addressed simultaneously from the perspective of equipment safety<\/strong>.<\/p>\n The PR53GCEX is an inline process refractometer<\/strong> that can be installed on a process pipeline.<\/p>\n The instrument directly measures the refractive index and temperature of the process medium. A concentration model can then be used to calculate the corresponding concentration.<\/p>\n The measurement method is based on the refraction of light through the liquid medium, allowing direct and continuous measurement.<\/p>\n This is an important advantage when the instrument is used in industrial processes that require continuous monitoring.<\/p>\n For a Zone 0 configuration, the PR53EX uses the Ex ia<\/strong> version together with an intrinsically safe cable. An isolator<\/strong> is installed between the hazardous area and the instrument; if an Indigo520 or Indigo80 is used, it is installed in the safe area.<\/p>\n Starting from the initial requirement:<\/p>\n Measuring the refractive index nD of essential oil in a Zone 0 area<\/strong><\/p>\n the Vaisala PR53GCEX solution provides the plant with an approach for direct, continuous measurement suitable for hazardous environments<\/strong>, while meeting the requirement for refractive index measurement within the process.<\/p>\n MEASUREMENT<\/strong> SAFETY<\/strong> INTEGRATION<\/strong> For high-performance process measurement instruments, selecting the right equipment is only the first step.<\/p>\n As a provider of Vaisala measurement solutions in Vietnam, Filterfine Vietnam<\/strong> supports customers from defining measurement requirements through to equipment implementation and operation.<\/p>\n For applications in hazardous environments, the technical team needs to consider multiple factors simultaneously, including:<\/p>\n An accurate measuring instrument can only deliver its full value when it is properly installed, configured, and maintained<\/strong>.<\/p>\n Filterfine Vietnam provides after-sales support for Vaisala measurement solutions, including:<\/p>\n \ud83d\udd27 Technical Consulting<\/strong><\/p>\n Analysis of the application, process medium, operating conditions, and measurement requirements to support the selection of a suitable configuration.<\/p>\n \u2699\ufe0f Installation & Operation Support<\/strong><\/p>\n Guidance on installation, configuration, and commissioning according to application requirements.<\/p>\n \ud83d\udcca Measurement & Calibration Support<\/strong><\/p>\n Support for equipment condition checks, measurement verification, and related calibration requirements.<\/p>\n \ud83d\udee0\ufe0f Maintenance & Troubleshooting Support<\/strong><\/p>\n Ongoing support throughout equipment operation, including technical diagnosis and troubleshooting when issues arise.<\/p>\n \ud83e\udd1d Long-Term Partnership<\/strong><\/p>\n Rather than simply supplying equipment, Filterfine focuses on providing comprehensive solutions that help businesses maintain measurement data reliability and process stability<\/strong>.<\/p>\n The case study at the Terpineol production plant in H\u00e0 Nam, Vietnam<\/strong> demonstrates a typical challenge in the chemical industry:<\/p>\n Not every measuring instrument capable of measuring nD can be used in a Zone 0 area.<\/strong><\/p>\n For areas with explosion hazards, equipment must be selected based on both measurement requirements and the safety requirements of the installation area<\/strong>.<\/p>\n With the Vaisala Polaris\u2122 PR53GCEX<\/strong>, businesses can access a solution for direct inline refractive index measurement while using a configuration certified for hazardous environments according to the applicable equipment configuration.<\/p>\n Are you looking to measure nD\/RI or chemical concentration in an ATEX\/IECEx hazardous area?<\/strong><\/p>\n Filterfine Vietnam<\/strong> can advise on a suitable Vaisala configuration based on your process medium, operating conditions, and hazardous area classification.<\/p>\n \ud83d\udcde Hotline:<\/strong> 0961.152.8441. The Real Challenge: Measuring nD in a Zone 0 Area<\/strong><\/h2>\n
When measurement accuracy and safety requirements must be met simultaneously<\/strong><\/h3>\n
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<\/p>\n2. The Solution: Vaisala Polaris\u2122 PR53GCEX Process Refractometer<\/strong><\/h2>\n
From \u201cCan It Measure?\u201d to \u201cCan It Measure Safely?\u201d<\/strong><\/h3>\n
3. How Does the PR53GCEX Measure Refractive Index nD?<\/strong><\/h2>\n
\nAccuracy: \u00b10.00014 nD<\/strong><\/p>\n4. Why Is the PR53GCEX Suitable for the Terpineol Plant Application?<\/strong><\/h2>\n
\u2460 Meets Hazardous Environment Requirements<\/strong><\/h3>\n
\u2461 Direct Inline Process Measurement<\/strong><\/h3>\n
\u2462 Optical Measurement Principle with No Moving Parts<\/strong><\/h3>\n
How Is the PR53GCEX Installed in Zone 0?<\/strong><\/h3>\n
5. Results of the Solution<\/strong><\/h2>\n
The challenge is addressed across 3 key areas:<\/strong><\/h3>\n
\nMonitoring refractive index nD using an optical measurement principle.<\/p>\n
\nUsing a PR53EX configuration suitable for potentially explosive environments and Zone 0 according to the applicable certification.<\/p>\n
\nMeasurement data can be integrated into process monitoring\/control systems through supported signals and communication protocols.<\/p>\n6. Filterfine Vietnam \u2013 Vaisala Representative in Vietnam<\/strong><\/h2>\n
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7. Filterfine Vietnam After-Sales Service<\/strong><\/h2>\n
Conclusion: When Safety and Accuracy Must Go Hand in Hand<\/strong><\/h2>\n
\n\ud83c\udf10 Website:<\/strong> Filterfine Vietnam<\/p>","protected":false},"excerpt":{"rendered":"