In the field of security monitoring equipment cameras, there is a newly emerged but widely used camera, which is the explosion-proof infrared camera. Night vision explosion-proof cameras are commonly referred to as explosion-proof infrared cameras, which can also have excellent monitoring effects at night, solving the problem of high noise and unclear visibility at night. Explosion proof infrared cameras have outstanding advantages such as long night vision distance, strong concealment, and stable performance, thus occupying the majority of the market in explosion-proof probe monitoring. So, what else should be noted when using an explosion-proof infrared camera with excellent performance?

1、 Working conditions of infrared lamps
Generally speaking, the infrared radiation power of explosion-proof infrared cameras is directly proportional to the forward working current. However, when approaching the rated value of the forward current, due to the heat consumption of the current, the device temperature increases and the luminous power decreases. If the current of the infrared diode is too small, it will affect its radiation power, but if the working current is too large, it will affect its lifespan and even burn out the infrared diode.

When the voltage exceeds the forward threshold voltage (about 0.8V), the current begins to flow, forming a very steep curve, indicating that the working current requirements are very sensitive. Therefore, it is required that the working current be accurate and stable, otherwise it will affect the performance and reliability of the radiation power. The radiation power will decrease with the increase of ambient temperature (including the increase of ambient temperature caused by self heating). Explosion proof infrared lights, especially long-distance explosion-proof infrared lights, should pay attention to heat dissipation issues in design and selection.

2、 Constant temperature of explosion-proof infrared cameras

Due to the high heat generated by explosion-proof infrared lamps, after starting the infrared lamp, there will be heat concentration in front of the infrared camera throughout the entire working cycle (12 hours), that is, the temperature at the front end of the chamber is too high. If the heat dissipation is uneven, it will affect the normal operation of other components of the explosion-proof camera.

3、 Misting and Frosting Problems of Explosion proof Infrared Cameras

The formation of fog and frost is due to the condensation of saturated water vapor in the air when it encounters cold, and due to the strength of the cold environment, it condenses into frost and fog, respectively. During the operation of explosion-proof infrared cameras, especially outdoor cameras, fog or frost often forms on the protective cover window glass due to seasonal changes, temperature differences between day and night, and rainy and snowy environments, causing the camera to be unable to see objects clearly, directly affecting the monitoring effect.

4、 Air tightness of explosion-proof infrared cameras
The explosion-proof infrared camera adopts a fully enclosed design without leaving any heat dissipation holes to prevent the entry of dust, moisture, and corrosive gases, making it suitable for harsh environments with large dust, such as chemical plants, oil depots, steel processing, oil tank trucks, mechanical manufacturing, grain processing and storage, etc. It is located in Zone 1 and Zone 2 of Class IIA, IIB, and IIC T1-T6 combustible gases, vapors, and explosive mixtures formed by air, as well as Zone 20, Zone 21, and Zone 22 explosive hazards formed by the mixing of combustible dust and air