FIX800 O2 Detector & Display Board Site Survey — Nitrogen Storage Tank Room, Food Research Institute (Gyeonggi-do)

Hello, this is RS Korea.

Today's post is a site survey for installing a FIX800 O2 detector and display board in a nitrogen storage tank room.

This is a company located in Gyeonggi-do. We visited after receiving an inquiry to survey the installation of a fixed-type FIX800 O2 detector and display board to prevent asphyxiation accidents in the nitrogen storage tank room of a food research institute.

Product

This is WANDI's fixed-type gas detector, the FIX800, shown here with an optional warning light.

It can be configured from a single gas up to five gases simultaneously, with simultaneous measurement and display. While an adapter is provided as standard, it can also be powered via DC24V, making it suitable for environments that require 24-hour gas monitoring. It can also be connected to a display board or PLC, allowing readings to be checked and logged in real time from outside the room or from an office.

FIX800 Installation Examples

Disaster prevention center (integrated control room, equipment room, server room, fire-suppressant agent room, electrical room) — FIX800 O2 with display board.

Semiconductor manufacturing facility — FIX800 O2 with display board.

Gas storage facility — FIX800 O2 with display board.

As mentioned, WANDI's FIX800 can be configured from a single gas up to five gases. The housing is the same across configurations, and only the sensor changes depending on the application. Since today's survey request is similar to these cases, we've shown a few reference photos of single-oxygen configurations paired with an external display board.

What is air? Air is the colorless, odorless, transparent gas that makes up the lower layer of the atmosphere surrounding the Earth. It is composed mainly of oxygen and nitrogen in roughly a 1:4 ratio, with small amounts of inert gases and carbon dioxide.

By volume, air consists of about 78% nitrogen (N2), 20.9% oxygen (O2), 0.03% carbon dioxide (CO2), and the remaining 1% other gases. An asphyxiation accident can occur if the oxygen level within this mixture drops too low.

To prevent asphyxiation, a portable gas detector is typically used to check conditions before entering a confined space. However, in spaces where gas is stored and managed on an ongoing basis, a fixed gas detector must be installed and its readings continuously monitored to prevent asphyxiation, poisoning, and fatal accidents — because a leak alone can be enough to cause a fatal asphyxiation accident.

Installation Points

• Installing a FIX800 oxygen detector inside the nitrogen storage tank room in the basement of the research building
• Installing an external display board
• Installation height and power supply point

We're showing the display board installation point first because understanding it makes it easier to follow the explanation of the FIX800 installation location.

This is the display board installation point. Left: the point as seen from the entrance outside the building. Right: the point as seen from inside the building (basement).

This is the FIX800 installation point. To the left of the display board installation point in the photo, there is a fixed ladder leading downward. Going down that ladder leads to the FIX800 installation point in front of the nitrogen storage tank.

FIX800 installation height: the client requested 1.5m, at eye level.

There are two power supply points in total: where the cable runs through, and where the 220V outlet is located.

Since the distance from the installation point to the display board is not far, the cable run is expected to be short, and with dedicated wiring and an outlet already available, power supply should not be an issue.

Site Survey Summary

Environment: Nitrogen storage tank room in the basement of a food research facility
Product: FIX800 O2 x1 / Display board x1
Gas measured: O2, 0–30%
Notes: FIX800 to be installed at 1.5m from the floor; power supply is convenient; cable run is short.

RS Korea operates an official Korean branch with complete in-house facilities for after-sales repair, calibration, and fabrication/shipping. Beyond simple sales, we are a gas-specialized company offering in-house calibration and domestic repair and fabrication. Drawing on our experience delivering and installing equipment across a wide range of environments, we configure 1:1 customized systems — including moisture and high-temperature pre-treatment units — to match each measurement environment.

If you have any questions about gas detectors or other environmental monitoring instruments, or would like to arrange a site survey or installation, please feel free to reach out to our team.

Frequently Asked Questions (FAQ)

Q1. Why does this nitrogen storage tank room need an oxygen detector?
Nitrogen can displace oxygen in a confined space, and since air is normally about 20.9% oxygen, any drop below the safe threshold creates an asphyxiation risk — so an O2 detector is installed to continuously monitor the space.

Q2. What is the measurement range of the FIX800 O2 sensor used here?
The unit surveyed for this site measures oxygen concentration from 0–30%, suitable for confined-space asphyxiation-risk monitoring.

Q3. Why was the display board installation point explained before the detector location?
Because the FIX800 is installed below, near the nitrogen tank, down a fixed ladder from the display board point — understanding the display board's position first makes the detector's location easier to follow.

Q4. Why was an installation height of 1.5m requested?
The client requested that the FIX800 be mounted at eye level, approximately 1.5m from the floor, for easy visual monitoring.

Q5. Can the FIX800 be configured for gases other than oxygen?
Yes. The FIX800 housing is the same across configurations — from a single gas up to five gases simultaneously — with the sensor changed to match the application, as shown in the reference installation examples above.

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