What gas safety products does Shield manufacture?

Shield designs and manufactures household combustible gas detectors, industrial and commercial point-type combustible gas detectors, gas alarm controllers, portable and 4-in-1 multi-gas detectors, and solenoid gas shut-off valves. The portfolio covers more than 80 marketable models that can be combined into complete detect-alarm-shut-off systems.

Is the Lower Explosive Limit (LEL) the same as the alarm set point?

No. The LEL is the lowest gas concentration in air that can ignite. Combustible gas detectors read in %LEL and trigger alarms well below that limit. Alarm set points are commonly configured in the range of about 20-25% LEL for the first alarm and up to about 50% LEL for the second alarm, but the final values must follow the standard that applies in your country and project.

Why do oxygen detectors display %VOL instead of ppm?

Normal air contains about 20.9% oxygen by volume, so oxygen deficiency or enrichment is measured in percentage by volume (%VOL). A ppm scale is designed for trace-level toxic gases and would be impractical for oxygen monitoring during pipe welding or confined-space work.

How does a gas detector work with a solenoid shut-off valve?

When the detector or gas alarm controller registers a concentration above the alarm value, it emits an audible and visual alarm and sends a linkage signal that closes the solenoid gas shut-off valve. Shield shut-off valves such as the JYFJS-011 series require manual reopening, so gas supply is only restored after the cause of the leak has been checked.

Does Shield support OEM and ODM orders for distributors?

Yes. Shield supports OEM and ODM cooperation. Branding, packaging, documentation and project-specific configuration such as target gas, alarm values and linkage outputs are reviewed and confirmed with our engineering team before sampling and mass production.

Which certifications do Shield products hold?

Applicable Shield products have been awarded China's mandatory 3C certification, and the company holds more than 40 patents. For export projects, our sales engineers confirm the test reports and compliance documents required in the destination market before an order is placed.

High-Quality Gas Alarm Controller Shield 8001AB Series - China Suppliers and Factory for Gas Safety Detection Systems Manufacturers, Suppliers

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High-Quality Gas Alarm Controller Shield 8001AB Series - China Suppliers and Factory for Gas Safety Detection Systems Manufacturers, Suppliers

Product Overview

The SD8001A/SD8001B series gas alarm controllers, along with gas detectors, create an efficient gas safety detection system designed for centralized monitoring of gas leaks and alarms. These advanced gas detectors are strategically installed in both indoor and outdoor hazardous areas where the risk of gas leakage exists. The controllers are conveniently located in non-explosion-proof areas, such as control rooms, ensuring safe operation.

Application

This leak detector is extensively utilized across various industries, including petroleum, chemicals, environmental protection, metallurgy, refining, gas distribution, biochemical medicine, and agriculture. As a leading supplier in China, our factory ensures high-quality gas detection solutions that meet the specific needs of these critical sectors.

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Product Description

Product Features

Four-wire bus communication for easy system design and expansion;
Three-wire bus communication reduces construction costs and meets split-wire modifications;
Two-wire bus communication for low construction costs;
Realize network monitoring with the upper computer;
Large capacity data logging with simultaneous saving;

Unboxing and Inspection

Installation accessories: product manual (1pc), product certification (1pc), mounting plate, factory inspection report, main power fuse, backup fuse, expansion screws, key.
Unpacking and inspection: the product appearance is free of scratches, the label is complete and clear, and the accessories are complete.

Frequently Asked Questions

Q What types of bus communication does the 8001A support?

The 8001A supports four-wire, three-wire, and two-wire bus communication, offering flexibility for different installation environments and budget requirements. Each mode is designed to suit specific construction scenarios.

Q Can the 8001A be monitored remotely via a computer?

Yes. The 8001A supports network monitoring through an upper computer, allowing operators to manage and oversee the system remotely for improved operational efficiency.

Q Does the 8001A have data logging capability?

Yes. The 8001A features large-capacity data logging with simultaneous saving, ensuring that all critical data is recorded and stored reliably for future reference or analysis.

Q What accessories are included in the 8001A package?

The package includes a product manual (1pc), product certification (1pc), mounting plate, factory inspection report, main power fuse, backup fuse, expansion screws, and a key. Please verify all items upon unboxing.

Q How should I inspect the 8001A upon delivery?

Upon receiving the unit, check that the product appearance is free of scratches or damage, verify that the label is complete and clearly legible, and confirm that all listed accessories are present and undamaged.

Q Is the three-wire bus communication suitable for split-wire modification projects?

Yes. The three-wire bus communication mode is specifically designed to reduce construction costs while meeting the requirements of split-wire modification projects, making it a practical choice for upgrade or retrofit installations.

High-Quality Gas Alarm Controller Shield 8001AB Series - China Suppliers and Factory for Gas Safety Detection Systems Manufacturers, Suppliers

Product Description

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