What is the main difference between a fixed gas detector and a portable gas detector?
Stationary gas detectors are typically used in industrial installations and production processes to detect specific gas leaks. Fixed types are mainly used for fixed site specific gas concentration as well as leakage measurement.
They are generally categorized as two-body types, with the detection probe consisting of a sensor and a transducer element installed at the detection site, and the secondary instrumentation consisting of circuitry, power supply, and a display and alarm device installed in a safe place for easy monitoring. This type of detector is more suitable in terms of process and technology to detect the required continuous and long time stability and other characteristics. In operation, they are selected according to the type and concentration of the gas at the site, and care is taken to install them in the area where the particular gas is most likely to leak.
Portable gas detectors, on the other hand, are lightweight, easy-to-carry devices that are suitable for detecting gases at unsettled locations or suspected sources of damage, such as municipal underground pipelines, gas delivery vehicles, coal mine underground operations, and other unsettled view sites for gas safety. These devices can usually be equipped with single gas and multi-gas detection sensors to protect the personal safety of construction and operation personnel. Their advantages are that they are portable, can detect different environments at any time, have built-in sampling pumps, are fast and easy to operate, and provide real-time protection and prevention of gas damage in the construction environment. However, they do not provide continuous detection and require personnel to operate in the environment being measured, and the product needs to be calibrated at regular intervals. Portable detectors also require recharging.
In summary, fixed gas detectors and portable gas detectors each have their own characteristics and application environments, and need to be selected for use according to specific needs and actual conditions. Can also be used in combination with the two, such as underground corridors to install fixed detectors, measuring the corridor environment gas conditions, while the operators carry portable equipment to detect gas leaks in the operation, to meet safety standards and then operate, so as to protect the health and safety of the operators.
