How to use the VOC gas detector for data collection, what are the steps and methods
As we all know, the VOC gas detector is used to continuously measure toxic and harmful organic gases in dangerous or industrial environments, and is especially suitable for personal safety protection and on-site VOC detection. Therefore, it has very high requirements for data acquisition. If the data collection is incorrect, it is likely to directly affect the effect of subsequent use. So do you know how the VOC gas detector performs data collection?
Data collection of VOC gas detector:
1. Data collection mode:
When the VOC gas detector is collecting data, the instrument will display a disk symbol, indicating that the data collection is in progress. At the end of each data collection cycle (data collection is turned on), the instrument saves the gas concentration data, user ID, site ID, serial number, last calibration date, alarm limit and other information. Even if the instrument is turned off, all data are saved. It is saved in the memory of the instrument and will not be lost. Can transfer data to computer.
There are three data acquisition modes for VOC gas detector equipment:
(1) Auto: Default mode. When the instrument starts sampling, it automatically collects detection data.
(2) Manual: Data collection can only be performed after the data collection function is manually enabled.
(3) Snapshot: collect data in the snapshot sampling state (press the mode key to activate single event data capture).
2. Data collection event:
When the data collection is turned on, the detected data is saved. These data are stored in the form of "groups" or "events". Every time the instrument is turned on, or the setting parameters are changed, or the data collection is interrupted, a new test time will be generated and relevant information will be saved. The duration of each event shall not exceed 24 hours, or the amount of data collected shall not exceed 28,800 points. If the same event persists for more than 24 hours, a new event is automatically generated. Information such as event start time, user ID, site ID, gas name, serial number, last calibration date, alarm limit, etc. will be automatically recorded and saved.
3. Data collection sample:
When logging data acquisition events, the instrument saves an abbreviated form of the data. When the data is transmitted to the computer, the number of samples, date, gas concentration and other relevant information can be presented through the arrangement of the software.
