Key tips for operating gas detectors
For better use of the instrument, please carefully read the instruction manual before use.
2. Before testing, this instrument should reasonably grasp the preheating time. For example, if there is a high demand for results when it has not been used for more than 2 hours, it is recommended to preheat for 15 minutes.
If the battery level is less than 40%, it is recommended to charge it for future use.
4. This instrument is equipped with a Teflon sampling tube. If there is a lot of dust, it is recommended to use a sampling tube with a dust filter inserted into the air inlet (left nozzle), otherwise it is not recommended to use a sampling tube with a filter; The air outlet can be connected to the trachea according to the situation.
5. After detecting toxic and harmful gases, it is necessary to enter the detection mode in a clean environment for a gas detection until the concentration values of various toxic and harmful gases return to 0ppm, and continue for more than 1 minute. Then, turn off the machine and place it in the instrument box.
6. The ideal working temperature for most sensors is 20 degrees Celsius, so when used in low-temperature environments, the sensor's response will be slower than usual, especially for semiconductor type sensors such as odor, which require a long preheating time and a certain temperature to be maintained for accurate detection.
7. In environments with high humidity (greater than 65% RH), it usually leads to excessive sensor signals.
Before detecting the target environment, it is necessary to verify whether the instrument can work properly. The following steps can be carried out in a clean environment:
1. Turn on the machine in clean air and enter detection mode.
2. The clean air detector will preheat each sensor according to the required preheating time. The preheating time will be displayed in the bottom right corner of the screen as * * *: preheating in xxx; The unit is seconds. The data in preheating is inaccurate.
If all detection items cannot return to zero in clean air, it is recommended to wait for a few more minutes until the sensor returns to zero before entering the target environment for detection.
If in clean air for more than 10-15 minutes and unable to return to zero, consideration should be given to whether the environment is truly clean. Especially in industrial areas, the atmospheric environment is also very poor. The method to troubleshoot this issue is to keep the instrument away from the contaminated area and then turn it on for testing to see if it returns to zero. If the problem persists, please contact us.
5. If there are any unclear areas during the operation of the project, please contact us.
