GasTiger 6000 NO/NO₂ Detector — Plasma Processing Facility Delivery (Changwon Electric Research Institute)

GasTiger 6000 NO/NO₂ Detector — Plasma Research Facility (Changwon Electric Research Institute)

Hello from Raymond Korea. This case covers the delivery of a gas detector to a site where NO (nitric oxide) and NO₂ (nitrogen dioxide) were generated during plasma processing.

What is Plasma?

Plasma is the state in which a gas is heated to an extremely high temperature and separates into electrons and positively charged ions — the fourth state of matter, following solid → liquid → gas → plasma.

During plasma generation, O₃ (ozone), NO (nitric oxide), and NO₂ (nitrogen dioxide) are produced.

Site Conditions

1. NO and NO₂ generated when ambient air is converted to plasma state by high-voltage discharge
2. Gas concentrations expected to be at high levels
3. System intended for experimental use; data logging capability required

Selected Instrument — GasTiger 6000

• Model: GasTiger 6000
• Type: Portable multi-gas concentration detector

Key Specifications

1. High-range sensors

• NO: 0–3,000 ppm
• NO₂: 0–1,000 ppm

2. Data logging: USB connection to PC enables real-time concentration monitoring and Excel data export

3. Built-in pump: Active sampling from any desired point — optimized for experimental environments where specific sample locations must be targeted

On-Site Validation — Comparison with Reference Analyzer

A performance comparison test was conducted against the reference analyzer already in use at the site. GasTiger 6000 readings fell within the acceptable error margin of the reference analyzer, confirming instrument reliability. Delivery was completed following customer acceptance of the validation results.

Frequently Asked Questions

Q1. How are both NO and NO₂ generated simultaneously in plasma environments?

High-voltage discharge dissociates atmospheric N₂ and O₂ into atomic form; NO and NO₂ are formed during recombination. Unlike combustion environments where the NO:NO₂ ratio is approximately 95:5, plasma environments generate NO and NO₂ at roughly a 3:1 ratio — meaning NO₂ is produced at a much higher proportion.

Q2. Why was GasTiger 6000 selected instead of a combustion gas analyzer?

Combustion gas analyzers include mandatory O₂ and CO sensors and can only measure NO₂ at approximately 5% of total NOx — insufficient for the high-concentration NO₂ generated in plasma environments. The GasTiger 6000 supports dedicated high-range NO (3,000 ppm) and NO₂ (1,000 ppm) sensor combinations, making it the appropriate choice for this application.

Q3. Why is data logging capability important in experimental environments?

Experimental research requires tracking gas concentration changes over time as voltage, conditions, and parameters vary. Real-time PC monitoring combined with Excel export allows measurement data to be used directly for experimental result analysis and research documentation.

Q4. Why is a comparison test with a reference analyzer performed?

In research and experimental environments, data reliability is paramount. Confirming that the delivered instrument reads within the acceptable error margin of an already-validated reference analyzer gives researchers confidence to use its measurements as experimental data.

Q5. How many gas types can the GasTiger 6000 measure simultaneously?

Up to 6 sensors can be installed for simultaneous measurement of 6 gas types. This delivery used a 2-sensor NO/NO₂ configuration, but the GasTiger 6000 can also incorporate O₃, CO, SO₂, HCl, and many other gases to address a wide range of experimental environments.

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