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.

ODM Portable Gas Detector SD3001 Series - China Suppliers & Factory for Reliable Gas Monitoring Solutions Manufacturers, Factory

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ODM Portable Gas Detector SD3001 Series - China Suppliers & Factory for Reliable Gas Monitoring Solutions Manufacturers, Factory

Product Overview

The SD3001 Portable Gas Detector represents cutting-edge technology in gas detection, designed by leading suppliers in China. Utilizing advanced large-scale integrated circuit technology and intelligent design, this fully intelligent gas detector offers robust performance. It employs natural diffusion to effectively detect various gases, incorporating high-quality gas sensors that provide exceptional sensitivity and excellent repeatability. The user-friendly design and low maintenance requirements make it an ideal choice for industrial site safety monitoring. Constructed from high-strength engineering plastic, the detector is waterproof, dustproof, and explosion-proof, ensuring durability in demanding environments.

Application

Widely utilized in numerous sectors, the SD3001 Portable Gas Detector is essential in industries including petroleum, chemical, environmental protection, metallurgy, refining, gas distribution, biochemical medicine, and agriculture. This reliable device meets the rigorous standards expected from a top manufacturer and factory in China, providing peace of mind for safety monitoring in potentially hazardous environments.

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Product Description

Structure and Function Comparison Table

BTYQ-SD3001 Gas Detector Structure Diagram

Serial Number	Area Name
1, 2, 3	Alarm indicator light window
4	Left click
5	Middle button
6	Right-click
7	Gas sensing hole
8	Charging port
9	LCD screen

Structure of the Detector

The main components are the shell, circuit board, battery, display screen, sensor, and charger.

Working Principle

Electrochemical type and catalytic combustion type.

Frequently Asked Questions (FAQ)

Q What are the primary internal and external components of this detector?

The primary components consist of the protective shell, internal circuit board, rechargeable battery, display screen (LCD), detection sensor, and dedicated charger.

Q Which sensing principles are utilized by the detector?

The device operates based on electrochemical sensing mechanisms and catalytic combustion sensing technologies, ensuring precise and reliable gas detection.

Q What is the function of serial numbers 1, 2, and 3 on the device?

Areas 1, 2, and 3 serve as the alarm indicator light window, providing clear visual warnings and device status indicators during alarm events.

Q How do the front control buttons operate?

The device includes three navigation keys: Left click (Area 4), Middle button (Area 5), and Right-click (Area 6), enabling convenient parameter configuration and menu navigation.

Q Where is ambient gas sampled and how are readings viewed?

Ambient gas enters through the gas sensing hole (Area 7) for immediate sensor detection, and real-time gas concentrations and settings are displayed directly on the LCD screen (Area 9).

Q How is the detector battery recharged?

The device is charged via the dedicated charging port (Area 8) using the compatible charger included with the system.

ODM Portable Gas Detector SD3001 Series - China Suppliers & Factory for Reliable Gas Monitoring Solutions Manufacturers, Factory

Product Description

Structure and Function Comparison Table

Frequently Asked Questions (FAQ)

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