What does WANDI Korea do?

WANDI Korea is the official Korean distributor of WANDI environmental and gas measurement instruments, operated by RS Korea Co., Ltd. We provide sales, calibration, repair, installation, and technical support for portable and fixed multi-gas detectors and air quality monitoring systems, exporting to more than 20 countries with over 5,000 delivery records.

What products do you offer?

We supply portable multi-gas detectors (EDW100, EDW500, Gas Tiger series), fixed multi-gas detectors (FIX800, FIX900, FIX-AP), air quality monitoring systems (FIX5000), and gas leak detectors (GLD series) for industrial safety and environmental measurement.

Which gases can be measured?

Our instruments measure oxygen (O2), carbon monoxide (CO), hydrogen sulfide (H2S), combustible gases (EX), carbon dioxide (CO2), ammonia (NH3), and volatile organic compounds (VOC), among other hazardous and combustible gases found on industrial sites.

Do you provide calibration and repair services?

Yes. Beyond product sales, WANDI Korea provides in-house and national certified calibration, repair, installation, and ongoing technical support. Calibration and repair requests can be submitted through the quote/calibration/repair pages on our website.

How can I get a quote for a gas detector?

You can request a quote directly through the quote page on our website or through a nearby dealer. Let us know your application and target gases, and we will recommend a suitable model.

In which fields are the products used?

They are used across a wide range of industrial sites including laboratories, factories and plants, hospitals, military facilities, livestock and wastewater treatment, and construction sites for worker safety and environmental monitoring.

FIX800 Hazardous Gas Detector Installation in Confined Industrial Spaces — Electrical Room, Boiler Room, Water Treatment (Seoul/Gyeonggi-do)

FIX800 Hazardous Gas Detector Installation in Confined Industrial Spaces

This case covers fixed gas detector installations in confined industrial spaces. To understand why gas monitoring is necessary, it helps to first understand what constitutes a confined space.

What Is a Confined Space?

Even a room with windows is classified as a confined space if those windows remain closed. Any location where the ventilation system is not operating and outside air cannot circulate freely qualifies as a confined space. In such environments, a gas leak or drop in oxygen concentration can pose an immediate and serious risk to life.

Normal atmospheric oxygen concentration is approximately 20.9%. If oxygen drops below 18% due to a gas leak in a confined space, workers may experience dizziness. At levels lower than 18%, life-threatening conditions can develop rapidly.

Installation Sites — Electrical Room, Boiler Room, Water Treatment Facility

The installations completed this week covered an electrical room, boiler room, and water treatment facility in a manufacturing plant. A preliminary site visit was conducted before each installation to recommend the appropriate sensor configuration and optimize installation costs for each location.

Where pre-entry verification of oxygen and hazardous gas concentrations is required at the entrance, an LED display board for real-time gas concentration monitoring can be installed alongside the fixed detector.

FIX800 — Fixed Multi-Gas Detector

The gas detector used in most of these installations is the FIX800. It accommodates up to 4 sensor slots simultaneously (up to 5 gases when the CO+H₂S dual sensor is installed), making it a cost-effective solution. A single unit detects multiple gas types at once, reducing both equipment and installation costs.

Frequently Asked Questions

Q1. What gases should be monitored in electrical rooms, boiler rooms, and water treatment facilities?

Electrical rooms risk fire from short circuits and overloads, requiring CO and LEL monitoring. Boiler rooms generate CO from incomplete combustion and risk fuel gas leaks, requiring CO, O₂, and LEL. Water treatment and septic facilities produce H₂S and CH₄ from organic decomposition and risk oxygen depletion, requiring O₂, H₂S, and LEL as a baseline.

Q2. What are the oxygen concentration safety thresholds in confined spaces?

Korea's OSHA defines oxygen deficiency as below 18%. Normal atmospheric oxygen is 20.9%. Dizziness begins below 18%, and conditions become rapidly life-threatening at lower levels. The FIX800 default alarm threshold is set at 18.5% — above the legal limit — to provide an early warning before conditions become hazardous.

Q3. Why is a pre-installation site survey necessary?

Conduit types, electrical wiring routes, and optimal detector placement vary between sites. A survey allows sensor configuration to be tailored to the specific hazards present, avoids over-specifying detectors, reduces costs, and enables the installation to be completed efficiently in a single visit.

Q4. What are the benefits of adding an LED display board?

A display board at the entrance allows workers to check internal gas concentrations before entry without carrying a portable detector. It also provides external alarm annunciation when concentrations exceed thresholds. This configuration is often more cost-effective than operating two or three portable instruments.

Q5. How can one FIX800 unit measure up to 4–5 gases simultaneously?

The FIX800 has up to 4 sensor slots that can each accommodate different gas sensors — O₂, CO, H₂S, LEL, and others. The CO+H₂S dual sensor occupies a single slot while measuring two gases, enabling up to 5 simultaneous gas measurements. This multi-gas capability in one unit significantly reduces equipment and maintenance costs compared to deploying separate single-gas detectors.

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