Confined Space Gas Detector Requirements
Confined space operation gas detector safety operation guide is mainly for portable toxic and combustible gas detector, because the fixed detector is installed, wired, energized, tested for a long time after the uninterrupted detection of toxic and combustible gases in the confined space concentration content.
When the operating environment harmful gas concentration reaches the lower limit of the detector alarm automatically alarm, and can intelligently start the linkage equipment protection, equipment normal does not require manual operation.
There are many types of gas detectors on the market, but in the confined space operation, you must choose 4 gas detector for real-time detection of the operating environment gas, and a single gas detector can only detect a gas, can not be used for confined space operations.
The confined space operation of toxic and combustible gas detector safe operation is manual use, so you need guidance, as follows:
1, before use should check whether the instrument power is sufficient, such as found that the battery power should be replaced in a timely manner.
2, check the air inlet gas filter with or without debris blockage, blockage needs to be cleaned up or replaced.
3, boot process self-test should listen to the grading alarm sound and light alarm, vibration alarm is accurate, such as does not meet the requirements of the setting is not allowed to use, and should be immediately calibrated.
4, in the fresh air under the conditions of the boot to observe whether the initial value is accurate (CO detector initial display of 0 ppm; O2 detector initial display of 20.9%; hydrogen sulfide detector initial display of 0 ppm), such as displaying the value of inaccuracy is strictly prohibited to use, should be immediately calibrated.
5, in the detection, should choose the appropriate detection mode and set the parameters, start the detection operation. Observe the display of the detector, when the detection of combustible gases or toxic gases, the detector will be reminded through the sound and light alarm.
6、After the detection is completed, turn off the instrument and cut off the power supply, clean up the instrument and the surrounding environment.
7, confined space operations using toxic and combustible gas detector, should wear appropriate protective equipment, such as gas masks, protective clothing.
8, in the use of gas detectors, should pay attention to safety, avoid operating in the environment of high concentration of toxic or combustible gases.
9, regular calibration and maintenance of the gas detector to ensure its accuracy and reliability.
10, in the process of using the gas detector, should pay attention to prevent electromagnetic interference, high temperature, humidity, dust, corrosion and other environmental factors on the instrument.
11, for storage or transportation of the gas detector, should follow the product specification or related regulations to ensure its safety and reliability.
Follow the above guidance to operate the toxic combustible gas detector can ensure safety in confined space operations. At the same time, it is also necessary to pay attention to comply with relevant laws, regulations and rules, as well as operating procedures and safety technology requirements.
After the confined space operation is completed, in the clean gas environment, after the gas detector is turned on and the oxygen value is not 20.9%, or other gas values are not 0 value, you need to manually adjust the zero calibration gas detector.
Eliminate the deviation between the display value and the actual value of the calibration should be carried out in a well-ventilated, moderate temperature, clean gas environment combustible gases, hydrogen sulfide, carbon monoxide enter the sample value of 0, to see if the measured value is 0, and oxygen enter 20.9%, to see if the measured value is 20.9%.
Confined space operations of gas detectors, operators should be proficient in the operation of the four-in-one gas detector, the use of training and qualified before going on duty, different specifications of the detector operation, setup methods are different, read the instructions carefully.