Mastering key points and using composite multi gas detectors reasonably
The use of composite multi gas detectors is very extensive, and they can be used for safety inspections and testing in production workshops, storage warehouses, pipeline construction, tunnel and underground mine construction, and many customers have also purchased composite multi gas detectors.
Usage of composite multi gas detector:
1. Turn on the instrument
Press the"
In measurement mode, press the "1" button for about 2 seconds to shut down the instrument.
2. Low battery
When the battery level of the instrument drops below the preset value, an audible undervoltage alarm will be triggered, reminding the operator that the battery level is low and needs to be charged. When there is an undervoltage alarm, the battery symbol flashes together with the sound alarm. When the battery is depleted, the instrument will automatically shut down.
When an undervoltage alarm occurs, the operator should shut down the instrument and charge it for approximately 3-4 hours.
Preheating self check of composite multi gas detector:
After pressing the "1" button to turn on the device, there will be a self check process for the instrument's battery level, sensors, and sound, light, and vibration alarm functions. It will enter a 100 second countdown for preheating, and once the preheating is completed, it will directly enter the measurement status interface.
! Attention: If the self check fails, it should be repeated. If it fails again, please contact us or your local agent/service provider.
Measurement mode of composite multi gas detector:
By adopting a free diffusion detection method, the instrument can be fixed on the waist belt or handheld during normal operation. Once turned on, the instrument will continuously measure, and the surrounding air can enter the sensor through diffusion. Usually, the flow of air can directly send the measured target gas into the sensor, and the sensor will respond to the concentration of the gas and provide measurement results. The principle of diffusion detection is to directly detect the gas concentration around the instrument using the above methods. The advantage of diffusion detection is its fast response time. If remote detection of gas at the sampling location is required, it is necessary to use the suction method for measurement. At this time, the instrument needs to use a calibration cover and an optional air pump. When using the calibration cover, it should be ensured that the direction of gas collection is in the direction indicated by the arrow.
