Overview
SK/MIC-800-H2-Y/30% is a Portable hydrogen detector of SKYEAGLEE brand. The instrument adopts the pump-suction Sampling method and is equipped with an imported thermal conductivity Sensor, which can quickly, accurately and stably detect the hydrogen concentration in the range of 0-30% vol in the environment, and has an alarm function. The instrument adopts an ultra-low power 32-bit ARM processor, combined with a High Accuracy low temperature drift amplifier and a stable power processing circuit, which ensures the Reliability and Repeatability of measurement. The shell adopts a two-color mode design that is non-slip, waterproof, dustproof and explosion-proof, which is suitable for a variety of industrial environments.
Features
1. Imported High Accuracy Thermal Conductivity Sensor.
2. Use High Accuracy Low Temperature Drift Amplifier and Stable Power Processing Circuit to Ensure Accurate and Stable Measurement.
3. Equipped with a 3.5-inch TFT full-color display, supports Chinese and English graphical menu operation, and provides real-time detection trend analysis charts.
4. With Data storage function, it can store up to 300,000 sets of data, and the storage interval is adjustable.
5. Built-in long-life imported micro sampling pump, support low, medium and high adjustment to clean the gas path.
6. High-speed data transmission is achieved through the USB interface, and print data can be downloaded.
7. Meet the explosion-proof qualification certification, and the explosion-proof level is Exia II CT4.
8. The shell adopts two-color mold, which has anti-skid, waterproof, dustproof and explosion-proof characteristics.
9. With self-calibration, zero-point calibration, multi-point calibration function, and with temperature and pressure compensation.
10. It has one-click factory reset, self-programming to set alarm parameters, STEL and TWA functions, and two modes of detection and patrol.
Principle
The Portable hydrogen detector works based on the principle of Thermal Conductivity Sensor. The instrument has a miniature sampling pump built into the instrument, which sucks the environment gas into the detection gas path. When the gas comes into contact with the Sensor, the Sensor generates an electrical signal change based on the difference in thermal conductivity between hydrogen and Miscellaneous gases. The signal is amplified and processed by a High Accuracy low temperature drift amplifier and a stable power processing circuit, and then calculated by a 32-bit ARM processor. Finally, the real-time hydrogen concentration value is displayed on the screen. The instrument has the function of automatic cleaning of the gas circuit and temperature and pressure compensation to adapt to different environments.
Applications
Petrochemicals, natural gas, electric power, metallurgy, environmental monitoring, laboratories, confined space operations, emergency rescue
Steps
1. Boot warm-up: Press the power button for a long time to turn it on and wait about 30 seconds for the warm-up to complete.
2. Select detection mode: Select "normal detection mode" or "patrol mode" through the menu.
3. Set the sampling pump gear: according to the detection needs, adjust the sampling pump to low, medium or high in the menu.
4. Detection: The sampling tube is inserted into the test area, and the instrument will display the hydrogen concentration in real time.
5. Data viewing and export: You can view historical data through the menu, or connect to a computer through the USB interface to export data.
6. Calibration and settings: According to needs, zero-point calibration, multi-point calibration or alarm parameter settings are performed in the menu.
7. Shutdown: After the detection is completed, press the power button for a long time to shut down.
Notice
• Before use, please ensure that the instrument is fully charged and used within the range of Ambient Temperature (-30~ 50 ° C) and Humidity (10~ 95% RH without condensation) specified in the manual.
• Avoid use in environments with strong electromagnetic interference, high concentrations of corrosion gases or the presence of potentially explosive environments.
• The instrument has an explosion-proof design, but cannot be disassembled or charged in hazardous locations beyond the Explosion-proof level (Exia II CT4).
• Regularly calibrate the Sensor to ensure detection accuracy, the instrument will prompt the calibration expired or invalid.
• When using the sampling pump, the appropriate gear can be selected for automatic cleaning according to the pollution of the gas path.
• Data storage capacity of the instrument is large, it is recommended to export backups regularly to avoid data loss.
• If the instrument malfunctions, please do not disassemble it yourself, and contact a professional for repair.
• When storing, please place in a drying, dust-free, temperature appropriate (-30~ 70 ℃) environment.
