Overview
The BH-4S 4-in-1 Gas detection alarm instrument is a Portable intrinsically safe instrument that uses natural diffusion to detect gas concentration. It is equipped with a new 32-bit microprocessor and an imported industrial-grade Sensor. It has the characteristics of fast Response, high accuracy and good stability. It is equipped with a 2.4-inch high definition LCD display screen. It supports data upload and switching between Chinese and English. The whole machine meets the national Measurement and Production License Standards. The instrument can continuously detect toxic, harmful, flammable and explosive gases in the working environment. It is suitable for a variety of dangerous places. It can effectively prevent poisoning accidents and ensure the safety of personnel and production equipment.
Features
1. Using new 32-bit microprocessor and imported industrial-grade Sensor, Fast Response Time, high measurement accuracy, good stability and repeatability.
2.2.4 inch LCD high definition display, resolution 320 * 240, clear interface display.
3. Support more than 30 kinds of Sensors, flexible configuration, can be customized according to the needs of the gas type, the default detection of combustible gas (EX), oxygen (O2), hydrogen sulfide (H2S), carbon monoxide (CO).
4. With four alarm modes: sound, light, vibration and screen display.
5. Support Chinese and English language switching.
6. Built-in 500 sets of data storage functions, can be connected to the computer through the USB interface, and cooperate with the host computer software for data query, export and analysis.
7. Equipped with password protection and modification function (default password 0000).
8. The explosion-proof grade is Exib IIB T3 Gb, suitable for explosion-proof locations.
9. Adopt 3.7V rechargeable lithium battery for long battery life and convenient charging.
Principle
The instrument collects gases in the environment by natural diffusion. Molecular diffusion of gas enters the instrument and contacts the built-in imported industrial-grade Sensor. The Sensor converts gas concentration signals into electrical signals, which are processed and analyzed at high speed by the new 32-bit microprocessor, and finally displays real-time gas concentration values, status and changes on the 2.4-inch LCD LCD screen. When the detected gas concentration exceeds the preset low and high alarm points, the instrument will immediately trigger sound, light, vibration and screen display to alarm.
Applications
Explosion-proof places, toxic gas leakage rescue, underground pipelines, mines, metallurgy, power plants, chemical industry, tunnels, tunnels
Standards
National Measurement License Standard
Steps
1. Power on: Long press the power button to start the instrument.
2. Self-test: After the instrument is started, a self-test will be carried out to observe whether the screen display and alarm indication are normal.
3. Detection: Place the instrument in the environment to be tested and wait for the reading to stabilize.
4. Data viewing: View real-time concentration, historical Linear dispersion or stored data through the screen.
5. Alarm Response: When the instrument alarms, take appropriate measures immediately in accordance with safety procedures.
6. Data export: Connect to the computer through a USB data cable, and use the supporting software to export the stored data.
7. Shutdown: Press the power button for a long time to turn off the instrument, or wait for it to shut down automatically.
8. Charging: Use the matching charger to charge the instrument.
Notice
• Please read the instructions carefully before use and perform boot self-test in a safe environment.
• The instrument is designed to be explosion-proof, but it cannot be disassembled or charged in dangerous places that exceed the explosion-proof level.
• Avoid severe impact or drop of the instrument to prevent damage to the Sensor.
Do not use the instrument to detect gas concentrations beyond its range.
• Periodically calibrated to ensure detection accuracy, Sensor life is about 24 months.
When the instrument alarms, it should be evacuated to a safe area immediately and the cause should be identified.
• Keep the air inlet of the instrument unobstructed to avoid being blocked by dust or liquids.
• Charging should be carried out in a safe place and using the original charger.
• Ambient Temperature of the instrument is -20 ° C to 50 ° C, humidity is 0-95% RH (no condensation), do not use under extreme conditions.
• To change the password and other settings, you need to enter the correct password (default 0000), please keep the password properly.
