The zero point setting of the toxic gas alarm means that when the alarm reaches a certain critical point when the toxic gas reaches a set point, a sensitive alarm is issued, thus playing a wake-up role for us. But how to determine the value of zero?
One advantage of compressed air is that the gas is easily controlled and easily carried in the bottle. It is easy and convenient to get air through the device. This kind of air means a small amount of nitrogen and hydrogen compounds, carbon monoxide, carbon dioxide and some other interfering gases. It is worth noting that carbon monoxide gas cannot be filtered out by a filter with activated carbon.
According to the judgment of the operator, the gas surrounding the sensor is fresh and no abnormal conditions exist. At this time, the indicator of the instrument is close to zero, and the zero setting process can be skipped. Therefore, the rule stipulates that the content of carbon monoxide in the cylinder must be the same as that of the ambient gas. Since the use of Suda ash filter on the sampling system pipeline can filter out carbon monoxide, this method is a good way to set the zero point of the CO2 sensor and it is easy to get the basic zero point.
The zero setting of toxic gas alarm requires us to have certain experience and complete it in practice. We are committed to serving our customers with the business philosophy of being sincere, quality first, technology perfect, and business-to-business. For everyone to provide high-quality toxic gas alarm, high product configuration, reasonable price, worthy of your trust, welcome to buy our gas alarm, such as special security.
compression fittings 's ring has double anneal,It is much better for seal.compression fittings,Connex compression fittings,Plumbing compression fittings
compression fittings,Connex compression fittings,Plumbing compression fittings
Taizhou Runde Company , https://www.nerausmotor.com