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 Four-Gas Detector Installation at a Wastewater Treatment Facility — Underground Reservoir Confined Space Monitoring (Incheon)

FIX800 Fixed Gas Detector and FIX-DS Display Panel Installation — Underground Wastewater Reservoir

This case covers the installation of a FIX800 fixed multi-gas detector and FIX-DS gas concentration display panel for continuous monitoring of the confined underground reservoir workspace inside a wastewater treatment facility. The system measures four gases — O₂, CO, H₂S, and EX (flammable) — and provides real-time alarm annunciation in compliance with Korea's Occupational Safety and Health Act (OSHA).

The FIX-DS gas concentration display panel was positioned at a clearly visible location near the underground entrance. This placement allows workers to verify internal gas conditions before entering the confined space, without needing to step inside first.

FIX-DS Gas Concentration Display Panel — Specifications

4-gas configuration: O₂ (oxygen), CO (carbon monoxide), H₂S (hydrogen sulfide), EX (flammable gas)
Alarm setpoints configured to Korean OSHA standards
Audible and visual alarm output

Inside the wastewater treatment reservoir, the FIX800 fixed multi-gas detector was mounted at a position directly visible to workers operating within the space.

FIX800 Fixed Gas Detector — Configuration

4-gas measurement: O₂ (oxygen), CO (carbon monoxide), H₂S (hydrogen sulfide), EX (flammable gas)
Beacon lamp option included
Default alarm thresholds set to Korean OSHA standards (user-adjustable)

When oxygen concentration inside the workspace drops to 18.5% or below (oxygen-deficient condition), or when toxic gas levels are detected, the FIX-DS display panel triggers an audible alarm, enabling workers to respond immediately.

Frequently Asked Questions

Q1. Why is gas monitoring mandatory in underground wastewater reservoir spaces?

Underground reservoirs in wastewater treatment facilities are classified as confined spaces under Korea's OSHA regulations. Organic decomposition in wastewater generates hydrogen sulfide (H₂S), methane (CH₄), and other toxic or flammable gases, while the enclosed environment can cause oxygen depletion. Continuous monitoring with a fixed gas detector is required to protect workers from asphyxiation and gas poisoning before and during entry.

Q2. Which gases should be monitored in a wastewater treatment confined space?

The four gases most commonly monitored are O₂ (oxygen), H₂S (hydrogen sulfide), CO (carbon monoxide), and EX (flammable gases, typically measured as LEL). For cost-effective coverage, O₂ and H₂S are the minimum recommended sensors. Where budget permits, adding CO and EX provides comprehensive protection against all primary hazards present in wastewater environments.

Q3. What is the difference between the FIX800 detector and the FIX-DS display panel?

The FIX800 is the primary sensing unit installed inside the confined space. It continuously measures gas concentrations and generates local alarms. The FIX-DS is an external LED display panel connected to the FIX800 via RS-485 communication. Positioned at the entrance, it mirrors real-time readings from the FIX800, allowing workers to assess internal air conditions before entering — without requiring a portable detector for every individual.

Q4. Can alarm setpoints be adjusted after installation?

Yes. The FIX800's alarm thresholds are pre-configured to Korean OSHA standards at the time of delivery, but they can be adjusted by the operator as needed using the infrared remote control, without requiring tools or special software.

Q5. Is a beacon lamp required in addition to the FIX800's built-in alarm?

The FIX800 includes an integrated beacon lamp as standard. An additional external beacon can be added as an option where increased visual coverage is required — for example, in large or multi-section spaces where the built-in lamp alone may not be visible from all working positions.

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