FIX800 5-Gas Fixed Detector and Display Board Installation — Tunnel Construction Site (Dangjin, Chungcheongnam-do)

Hello, this is RS Korea.

Nice temperatures, but a dry day with some fine dust in the air. Please take care of your health as the seasons change.

Back on March 4, we conducted a site survey and meeting at a location in Dangjin for a planned detector installation. If you missed our earlier post on that survey, we'd recommend checking it out for the full background.

From quotation to meeting, survey, and installation, this project came together in about 20 days total. For an additional cost, air freight instead of sea freight can also shave one to two weeks off typical delivery times — in 2022, it seems, time really can be bought with money.

Based on a few notable points raised during the earlier survey, we prepared a slightly different installation approach this time around: (1) the customer wanted the installation position to remain adjustable as construction progressed, (2) the outdoor location meant the unit needed protection from water, and (3) the steel-frame interior structure made it difficult to drill for mounting.

Combining all three requirements led to the solution shown here: a transparent protective enclosure for visibility and moisture protection, paired with a high-strength magnetic bracket for easy, repositionable mounting.

Having prepared thoroughly in advance meant the materials and tools needed on site were kept to a minimum. We briefed the site manager and crew on the day's work and agreed on installation points that differed slightly from what was discussed during the survey.

The outdoor display board was installed at an angle clearly visible from the office. Communication cable, pre-cut to the length measured earlier, was then fed through waterproof flexible conduit — the reverse of the usual order of installing the conduit first and feeding cable through afterward, but this swap works fine depending on the site. We also made sure to keep the work area clean and tidy throughout.

After confirming the detector's mounting point, our three-person crew completed the wiring. A ground-level power distribution panel made the job that much easier.

Extra cable slack was tucked safely out of the way of foot traffic, and both units were powered on — gas concentration readings displayed correctly. (We do regret not getting a photo of the ground-level display board in action.)

Product training followed, though the tight space meant we had to observe mostly from a distance. Standard calibration gas was injected to test the concentration reading, the display board's color change, and the audio and visual alarms.

That wraps up this post on installing safety-grade 5-gas detectors at a tunnel shaft site. Project summary below.

Installing company: undisclosed. Installation location: Dangjin, Chungcheongnam-do. Products installed: FIX800 5-gas fixed detectors (O2, CO, CO2, H2S, EX) with warning lights, outdoor-rated enclosures, custom-fabricated magnetic brackets, and outdoor 5-channel display boards with warning lights, across two sites. Order date: February 25 (expedited via air freight due to a tight schedule, at additional cost). Installation date: March 10, 9:00 a.m.–12:00 p.m. (about 14 days after the order date). Crew: 3 people.

Notable aspects: magnetic bracket mounting; power supplied through an existing 220V outlet with no separate electrical work required; roughly 50m of GW corrugated conduit and AWG shielded cable, plus other minor mounting materials.

For inquiries about gas detectors or to arrange a site survey, please feel free to contact us directly during business hours.

자주 묻는 질문 (FAQ)

What gases does this installation measure?

Two FIX800 fixed detectors were installed, each configured for 5-gas measurement — oxygen (O2), carbon monoxide (CO), carbon dioxide (CO2), hydrogen sulfide (H2S), and combustible gas (EX) — with warning lights and outdoor 5-channel display boards.

Why was a transparent enclosure with a magnetic bracket used for this installation?

The site required a mounting position that could be adjusted as tunnel construction progressed, protection from water in an outdoor setting, and a way to avoid drilling into the steel-frame structure. A transparent, moisture-protective enclosure paired with a high-strength magnetic bracket addressed all three requirements at once.

How was the project able to move so quickly from quotation to installation?

Thorough preparation based on the initial site survey — including pre-cutting cable to the measured length — kept on-site work to a minimum. The overall project timeline, from quotation through installation, took about 20 days; expedited air freight was also used for the equipment due to a tight schedule.

Did this installation require any additional electrical work?

No. Power was supplied through an existing 220V outlet on site, so no separate electrical construction was needed.

What kind of final testing was performed after installation?

Standard calibration gas was injected to verify the concentration reading, confirm the display board's color change, and test the audio and visual alarm functions.

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