Portable multi-gas composite detection alarm, also known as multi-gas detector, is mostly used in closed/limited space. This kind of detector can be equipped with multiple gas detection sensors on one host, so as to achieve the purpose of one machine with multiple uses. In addition, the portable multi-gas composite detection alarm has the characteristics of small size, light weight, fast response, and long battery life, which is more convenient for field staff to use. Let's take a look at the relevant characteristics and precautions of the instrument.

The characteristics of the portable multi-gas composite detector are as follows:

1. There are two types of diffusion type and pump type. The pump suction type is used in the field of non-contact and partial detection. Because in a closed space, the gas distribution and gas types in different parts (upper, middle and lower) are very different.We can not use a single gas detector to do a full range of detection, multi-gas composite detection alarm can achieve this complex operation.

2. The portable multi-gas composite detection alarm can detect the oxygen concentration in the air in addition to flammable and toxic and harmful gases. In a closed/confined space, oxygen enrichment or hypoxia is likely to occur. The portable multi-gas composite detection alarm can quickly and effectively detect the oxygen content in the space. If it is too low or too high, an alarm signal will be issued to remind users and nearby staff to take preventive measures;

3. The body is small and easy to use. Although the portable multi-gas composite detection alarm gas detector can detect 4-5 different gases at the same time, the body is relatively small and light, especially the four-in-one detector, which can be held with one hand, and the alligator on the back of the body The clip is firmly fixed. The rubber packaging design improves the anti-skid performance of the shell and will not affect the normal work of the staff during normal testing.

Of course, it does not mean that with a portable multi-gas composite detection alarm, we will be completely safe after entering a limited space. Composite gas detectors are just one part of many safety procedures. In order to ensure safety detection, it is necessary to achieve all aspects of security protection. When we use the portable multi-gas composite detection alarm, we also need to pay attention to the following matters.

1.After starting up, after the instrument is warmed up, put the probe on the area to be measured;

2. During the detection process, the measured gas concentration should be correctly recorded;

3. We should deal with it at any time according to the measurement results and the relevant emergency plan on site.

4. in order to ensure the accurate measurement accuracy of the instrument at any time, the gas detector should be calibrated regularly (it is recommended to do it once a year);

5. when in use, ensure that the instrument has sufficient power and the continuous charging time is not less than 8 hours each time;

6. long-term exposure to high-concentration gas will lead to sensor poisoning, affect or even damage the sensor, so avoid frequent contact with high-concentration gas during use;

7. Pay attention when using the instrument. When working in a hazardous area, we must not disassemble it to prevent explosion.

8. After receiving the instrument, we should read the instructions first and refer to them according to the instructions.