When we buy anything, we will understand them before buying, because only by fully understanding can we give full play to their maximum effect. How should we choose the right gas tester? Yi Yuntian Xiaobian to introduce.

1. to understand your needs to choose a gas detector which gases need to be clearly detected? In what environment? Portable or fixed? And other incidental functions. These reasons usually need to be considered. Otherwise, avoid causing unnecessary economic losses.

2. understand the operating environment. various gas detectors have strict requirements on the on-site environment. the general temperature is -20~60 ℃, the humidity is 0-95% RH, the pressure is 80-120Kpa, etc., and have strict requirements on dust, flow, etc. Other impurities in the environment have a great influence on the detection results, and the loss cannot be foreseen. At the same time, understand the situation on site and provide information to the manufacturer in time, and the manufacturer will have a corresponding plan to deal with it.

When 3. understand the safety status of the site, there are mandatory requirements such as explosion-proof on the site where the gas detector is set up. The coal, petroleum and chemical industries have very strict requirements for explosion protection, and the explosion-proof of the gas detection instrument itself requires explosion-proof certification. Other environments may require gas detectors to have qualifications such as environmental certification and permits for metering.

4. understand the use of functional requirements The general function of the gas detector is to detect gas concentration, over-standard alarm, etc. However, many customers need more than just these features. Signal output is on the one hand, the need for current output, digital signal output, voltage output and switch output. There may also be special requirements such as network interfaces and wireless signals. Data logging and processing are also common requirements.

5. to understand the origin of the sensor Many gas detector manufacturers of sensors are called overseas sensors, but this is not the case. Some people use domestic sensors to disguise imported sensors to entrap customers. In this case, carefully check the product information, if necessary, sign a sales contract to ensure their rights and interests.