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 Oxygen Monitor Installation in a Department Store Basement Septic Tank — Confined Space Safety (Seoul)

FIX800 Oxygen Monitor Installation in a Septic Tank Confined Space

This is a field installation case — the first gas detector installation carried out inside a septic tank room. The FIX800 fixed gas detector was selected for this application for the following reasons:

Full remote-control operation for user convenience
Integrated warning beacon — optimized for confined spaces
Up to 4 sensor slots, measuring up to 5 gases simultaneously (CO+H₂S dual sensor supported)

FIX800 fixed gas detector — key features

Installation Site — Department Store Basement Septic Tank Room

This project was carried out at a department store basement septic tank room. The customer requested a fixed gas detector inside the septic tank room along with an LED display board at the entrance, allowing workers to check gas concentrations before entering.

Pre-Installation Site Survey

A preliminary site visit was conducted to confirm installation points for both the detector and the display board, and to measure the RS-485 communication distance between them. Flexible conduit and materials were prepared accordingly.

Power Supply Improvement

When the FIX800 and the FIX-DS display board are installed as a set, the display board can supply power directly to the detector. This eliminates the need for a separate power wiring run and enables installation at locations without dedicated power infrastructure — including bulk gas storage areas and classified hazardous (Ex) zones.

The detector itself was secured with three anchor points.

Display Board Installation

The LED display board was mounted at the entrance door at the top of the septic tank room stairs, giving workers a clear view of internal readings before entry.

System Operation

Oxygen concentration measured inside the septic tank room is transmitted in real time to the LED display board via RS-485 communication. If oxygen drops below the configured alarm threshold, the detector triggers an audible alarm and the display board switches from green to red, alerting workers immediately.

After installation, an operational test was conducted using portable span gas, and product training was completed with the facility manager.

Frequently Asked Questions

Q1. Why is a gas detector required in a septic tank room?

Septic tank rooms are designated confined spaces under Korea's Occupational Safety and Health Act. Organic decomposition generates hydrogen sulfide (H₂S), methane, and other toxic or flammable gases, while oxygen levels can drop significantly. Gas concentration must be verified before any worker enters.

Q2. Why use a fixed detector and display board together?

The fixed detector continuously monitors internal gas conditions around the clock. The display board at the entrance allows workers to check readings before entering without carrying a personal portable detector. Together, they provide a complete pre-entry and continuous monitoring solution.

Q3. How is the FIX800 powered?

Normally, a dedicated power wiring run is required. However, when paired with the FIX-DS display board, the board can supply 24 V DC directly to the detector via the communication cable — simplifying installation, particularly in areas without existing power outlets such as Ex zones or gas storage rooms.

Q4. Is a pre-installation site survey necessary?

Yes. A site survey confirms the optimal mounting locations for both the detector and display board, measures communication cable runs, and identifies conduit routing. This preparation typically allows the entire installation to be completed in a single day.

Q5. How does the display board respond when oxygen levels drop?

When oxygen falls below the alarm threshold, the detector triggers an alarm and simultaneously signals the display board via RS-485. The board's numeric display changes from green to red, giving workers at the entrance an immediate visual warning before they enter.

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