Choosing a Toxic Gas Detector for Breeding Environments: How to Evaluate Its Protection Performance?
1, Shell material and sealing performance
The shell is the first line of defense for toxic gas detectors against moisture, and selecting the right material and sealing design is crucial. It is recommended to prioritize the use of high-strength and corrosion-resistant materials for the shell of the detector, such as ABS+PC alloy or stainless steel material - ABS+PC alloy is lightweight and acid and alkali resistant, and can cope with corrosive substances produced by excrement in aquaculture environments; Stainless steel is more durable and suitable for long-term exposure to high humidity environments.
In addition to material, sealing cannot be ignored. High quality detectors will be designed with rubber sealing rings, waterproof rubber strips, etc. to tightly seal the gaps in the outer shell. For example, the interface of the instrument, the frame of the display screen, the battery compartment cover, and other areas that are prone to water ingress will be sealed tightly to prevent water vapor from entering the interior and damaging the circuit board, thus avoiding the instrument from malfunctioning due to moisture.
2, Waterproof and dustproof rating: certified IP65 or above
The IP rating is an intuitive standard for determining the waterproof and dustproof capabilities of instruments. For humid farming environments, it is recommended to choose at least IP65 rated toxic gas detectors. The "6" here represents completely preventing dust from entering and being able to deal with feed dust and livestock fluff in the breeding house; The symbol '5' indicates that it can be rinsed with water
without any harm, and the instrument will not be damaged even when subjected to daily spray disinfection or ground watering.
If the humidity in the breeding house is particularly high, such as exceeding 85% year-round, or there is often liquid splashing (such as water splashes during equipment cleaning), IP67 or even IP68 rated products can be considered - IP67 can be immersed in water for a short period of time, IP68 has stronger waterproof ability, can adapt to more extreme humid environments, and further reduce the risk of instrument moisture.
3, Circuit protection design
The circuit board is the "brain" of the instrument, and once it becomes damp and short circuited, the instrument will malfunction. High quality toxic gas detectors will provide special protection in the circuit section, such as spraying three proof paint on the circuit board - this paint can form a transparent protective film, which can prevent moisture, mold, and salt spray, isolate water vapor and corrosive gases in the breeding environment, and avoid circuit oxidation and short circuits.
Some products are also equipped with waterproof breathable valves, which can balance the air pressure inside and outside the instrument (for example, when the ambient temperature changes, the instrument will not absorb water vapor due to the pressure difference inside), while preventing moisture from entering, reducing the possibility of circuit moisture from details, and allowing the instrument to work stably in humid environments.
4, Sensors: Key protection of core components
Sensors are the core of toxic gas detectors for detecting gases and are particularly sensitive to the environment. Once they become damp, they can affect detection accuracy and even be scrapped directly. When making a purchase, it is important to confirm whether the sensor has a specialized moisture-proof design. For example, many detectors will cover the outside of the sensor with a waterproof breathable film - this film can allow target gases such as ammonia and hydrogen sulfide to diffuse into the sensor normally, while blocking water vapor and dust to prevent the sensor from getting damp or contaminated by impurities.
Some high-end detectors will also design independent sealed compartments for the sensors, separating them from other internal components of the instrument, further reducing the impact of water vapor on the sensors, ensuring the accuracy and stability of detection data, and avoiding false alarms or omissions caused by sensor moisture.
