Carbon monoxide flowmeter | Calibration standard for mining carbon monoxide sensor

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How to set up the carbon monoxide and CO concentration detection alarm device in the underground space of the garage and parking lot?

Carbon monoxide and CO concentration detection and alarm device for underground parking spaces in garages

1. Environmental conditions 1.1 Environmental temperature: 10-30 ℃ 1.2 Relative humidity:<80] 1.3 Atmospheric pressure: 86-106 kPa 1.4 There should be no interfering factors around the calibration.

2、 The power supply voltage should comply with the requirements stated in the product manual.

3、 3.1 Gas standard substances for verification equipment shall be CO gas standard substances provided by units approved and issued by the national metrological administrative department and possessing the corresponding "Manufacturing Measurement Instrument License" for standard substances. For instruments with levels 3 and 5, the total uncertainty of gas standard materials should not exceed 1.0 and 1.5, respectively. 3.2 Zero point gas can be high-purity nitrogen or clean air. The CO content in the clean and clean air should not exceed 1u mol/mol (x=0-6)

3.3 Pressure reducing valves, flow meters, and pipelines should use pressure reducing valves matched with gas standard substance cylinders, flow meters with an accuracy of not less than 2.5 levels, and pipelines that do not affect the determination of gas concentration

3.4 Electronic or mechanical stopwatches with a resolution of 0.1s and an accuracy of ± 0.25s/h.

4、 Before calibration, the equipment used for calibration of the tested instrument should be placed in the calibration environment for 12 hours. Additional information: Detection gas: Carbon monoxide (CO) Pure product is a colorless,

odorless, and non irritating gas. Molecular weight 28.01, density 1.250g/l, freezing point -207 ℃, boiling point -190 ℃. The solubility in water is very low, but it is easily soluble in ammonia water. The explosive limit of air mixture is 12.5% to 74%. After carbon monoxide enters the human body, it will bind with hemoglobin in the blood, causing hemoglobin to be unable to bind with oxygen and leading to tissue hypoxia, resulting in suffocation and death. Therefore, carbon monoxide is toxic. Carbon monoxide is a colorless, odorless, and tasteless gas, so it is easy to ignore and cause poisoning. Gas hazards: Carbon monoxide can harm our human health. If carbon monoxide poisoning is severe, it can lead to death. Therefore, we remind everyone to use gas safely, and colleagues working in factories should also pay attention to the concentration of carbon monoxide! Pump suction carbon monoxide detector is a flexible single gas or multiple gas detection alarm device that can be equipped with oxygen sensors, combustible gas sensors, toxic gas sensors, or optional four gas sensors or optional single gas sensors. The pump suction carbon monoxide detector has a very clear large LCD display screen, sound and light alarm prompts, and a built-in pump, ensuring that it can detect dangerous gases even in very unfavorable working environments and promptly remind operators to take precautions. Features of the pump suction carbon monoxide detector: 1. Equipped with a suction pump, it can suck gas from tens of meters away for measurement. 2. Sound and light alarms. 3. Large screen display of numbers, characters, instantaneous values, and peak values. 4. Self check of display, battery, sensing bucket buffer, and sound and light alarm funct

Carbon monoxide flowmeter | Calibration standard for mining carbon monoxide sensor

How to set up the carbon monoxide and CO concentration detection alarm device in the underground space of the garage and parking lot?

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