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• everoneeu everoneeu

  • 283 posts
  Posted in the topic The core features of industrial DPM export solutions when applied to the processing of architectural coatings in the forum News and Announcements

  April 20, 2026 3:54 AM BST

   

  Industrial DPM export solutions use water as the dispersion medium. With its excellent environmental performance and outstanding construction and usage characteristics, it has become the mainstream film-forming raw material for building coatings (such as interior latex paint, exterior coatings, waterproof coatings, etc.). Its core features can be elaborated from aspects such as environmental friendliness, construction compatibility, performance, and application flexibility. The details are as follows:

  1. Environmentally friendly and safe, in line with the trend of green building materials

  Low VOC emissions: The industrial DPM export solutions replace the volatile organic solvents such as toluene and xylene in traditional solvent-based resins with water. The VOC (volatile organic compounds) content is usually ≤ 50g/L. Some high-end products can be as low as below 10g/L, far below the national building coating environmental protection standard (GB 18582-2020). During construction and use, there is no pungent odor, reducing the harm to the atmospheric environment and human health, and meeting the requirements of "green buildings" and "indoor air quality compliance".

  No fire safety hazards: Water, as the dispersing medium, is non-flammable and non-explosive. Compared to solvent-based architectural coatings, the industrial DPM export solutions coatings do not require concerns about fire risks during storage, transportation, and construction. This reduces the safety management costs for storage and construction, and is particularly suitable for painting projects in densely populated areas such as residential buildings and office buildings.

  Convenient wastewater treatment: The wastewater from tool cleaning during the construction process can be discharged in compliance with standards simply through simple sedimentation and filtration. There is no water pollution problem caused by organic solvents, which meets the strict environmental protection policies' requirements for industrial wastewater discharge and reduces the environmental governance pressure on coating enterprises.

  2. Excellent construction performance, suitable for building coating scenarios

  Flexible construction method: The industrial DPM export solutions coatings can be applied through various methods such as brushing, rolling, and spraying. The construction viscosity can be easily adjusted, and the leveling property is excellent (the leveling time is ≤ 30 minutes). There are no defects such as brush marks, run-off, or bubbles. Even non-professional construction personnel can operate it, making it suitable for different construction scenarios such as home decoration and large-scale construction projects.

  Fast drying speed: Under normal temperature (25℃, relative humidity 60%), the surface drying time is only 1-2 hours, and the full drying time is ≤ 24 hours. It enables rapid re-coating (the next coat can be applied 4-6 hours later), significantly shortening the construction coating period. Especially suitable for projects affected by weather conditions such as exterior wall coating, reducing the risk of delays due to rainy days.

  High adhesion to substrates: It can be directly applied to various building substrates such as concrete, cement mortar, gypsum board, wood, metal, etc., without the need for complex substrate pre-treatment (only cleaning, drying, and removing dust is required). It has strong adhesion (pull-off strength ≥ 1.5 MPa), and is not prone to peeling or falling off. It is suitable for coating requirements of different parts of buildings, such as walls, ceilings, and doors and windows.

  Friendly to low-temperature construction: Some modified industrial dpm export solutions (such as those containing film-forming additives) can form a film normally at temperatures above 5℃. Compared to the minimum construction temperature of solvent-based coatings (above 10℃), these solutions meet the construction needs during the low-temperature periods in spring and autumn in northern China, thereby expanding the construction window period.

  III. Comprehensive performance ensures the quality of building coating.

  Excellent weather resistance: The acrylate groups contained in the molecular structure of industrial dpm export solutions have excellent resistance to ultraviolet degradation. After being used as exterior wall coatings, they can withstand natural environmental erosion such as wind, sun exposure, and rain. Even when exposed to the outdoors for a long time (5-8 years), they can still maintain color stability (color difference ΔE ≤ 2), intact paint film, without problems such as powdering, cracking, or fading. They are particularly suitable for outdoor scenarios such as high-rise building exteriors, bridges, and squares.

  High resistance to abrasion and staining: After the paint film is cured, it forms a dense polymer film. The internal wall latex paint can withstand up to 10,000 times of rubbing. Daily stains (such as dust, juice, oil stains) can be removed directly with a damp cloth, without damaging the paint film. The surface of the exterior wall coating has a certain hydrophobicity (contact angle ≥ 90°), which can reduce the residue of stains after rain washing, keeping the wall clean and beautiful.

  Good flexibility and crack resistance: By adjusting the glass transition temperature (Tg value) of the resin, the flexibility of the paint film can be customized (elongation at break ≥ 100%), which can adapt to the minor deformations caused by temperature changes and settlement of building substrates (such as concrete, gypsum board), avoiding cracking of the paint film. It is particularly suitable for the coating of new building walls (where shrinkage deformation is likely to occur) and the renovation of old buildings (where the base materials are prone to cracking).

  Excellent anti-mildew and antibacterial performance: The industrial dpm export solutions coatings can be added with environmentally friendly anti-mildew agents (such as isothiazolinones), which can inhibit the growth of mold and bacteria in humid environments (such as bathrooms, basements, and the rainy seasons in the south). The paint film has no mold spots or odors, ensuring indoor air quality and meeting the hygiene requirements of residential, hospital, and school facilities.

  Four. Flexible application, suitable for various painting requirements

  Highly customizable functions: By adjusting the single-component ratios (such as adding methyl methacrylate, butyl acrylate, etc.) and adding functional additives (fire retardants, waterproof coatings, anti-static agents), multi-functional building coatings with fire resistance, waterproofing, anti-static properties, and thermal insulation can be developed. For instance, water-based acrylic waterproof coatings can be used for waterproofing projects in roofs, bathrooms, and basements, with no seams and excellent water resistance; fire-resistant water-based acrylic coatings can be used in steel structure buildings to enhance fire resistance.

  The range of color and gloss options is extensive: The industrial dpm export solutions have good compatibility with pigments, allowing for the creation of thousands of colors with uniform and vibrant hues, which can meet the decoration needs of various architectural styles (modern minimalist, Chinese classical, European luxurious); the gloss can be adjusted according to requirements to matte, satin, semi-gloss, or high gloss, suitable for different scenarios such as interior walls (mainly matte for eye protection) and exterior walls (satin / semi-gloss, easy to clean).

  Compatible with other materials: It can be compounded and modified with polyurethane, epoxy resin, silicone-acrylic resin, etc., or used in combination with various environmentally friendly additives such as water-based color pigments, film-forming additives, defoamers, etc., to further optimize the performance of the paint film (such as enhancing weather resistance, hardness, and adhesion), and develop high-end architectural coating products (such as imitation stone paint, real stone paint, artistic paint), thereby enhancing the grade and added value of architectural decoration.

  V. High economic efficiency and cost-effectiveness, meeting the engineering cost requirements

  Controllable raw material costs: The main raw materials of industrial dpm export solutions (acrylic monomer, water, initiator) have a wide source and mature production process. After large-scale production, the costs are relatively stable. Compared with high-end solvent-based resins (such as fluorocarbon resins) and silicone acrylic resins, it has obvious cost advantages and is suitable for the coating needs of large-scale construction projects.

  Low construction and maintenance costs: During the construction process, no additional explosion-proof equipment or ventilation equipment is required, and tool cleaning only requires water, thereby reducing the auxiliary costs of construction. The paint film has a long service life (5-10 years for interior walls, 8-15 years for exterior walls), and during later maintenance, only local repairs are needed, without the need for overall renovation, significantly reducing the long-term maintenance costs of building coating.

  In conclusion, industrial dpm export solutions, with their core features of environmental protection and safety, convenient construction, comprehensive performance, and high cost-effectiveness, perfectly meet the processing and application requirements of architectural coatings. They have become a key material for the construction industry to achieve green and low-carbon transformation and improve coating quality. They are widely used in the interior and exterior wall decoration and functional protection of various buildings such as residences, office buildings, bridges, and stadiums.

  industrial dpm export solutions https://www.epchems.com/dipropylene-glycol-monomethyl-ether

   

• everoneeu everoneeu

  • 283 posts
  Posted in the topic What safety matters should be taken into consideration when using industrial DPNP sourcing solutions? in the forum News and Announcements

  April 20, 2026 3:54 AM BST

   

  Industrial DPNP sourcing solutions involve processes such as melting, mixing, molding, and curing. During these processes, one may come into contact with high temperatures, high pressures, flammable and volatile monomers / additives, and may also produce dust and toxic gases. Fire prevention, explosion prevention, poisoning prevention, mechanical injury prevention, and high-temperature burns prevention are the core safety points. The specific requirements for different processing techniques (such as injection molding, extrusion, compression molding, winding, gluing, etc.) vary slightly. The following are general and mandatory safety matters that must be followed, covering the entire processing process:

  I. Preparations: Material and Environmental Control

  Material Classification Management

  Synthetic resins (such as epoxy resin, polyurethane, phenolic resin, acrylic resin) and their accompanying additives (curing agents, diluents, plasticizers, solvents) are mostly flammable, explosive and toxic substances (such as benzene-based solvents, isocyanates, amine curing agents). They need to be stored in accordance with the requirements for hazardous chemicals: be stored separately in a cool and ventilated warehouse away from fire sources / heat sources, strictly prohibit mixed storage with acids, alkalis and oxidants, and be equipped with leak containment berms and emergency adsorption materials; the usage follows the principle of "small quantities and multiple uses", and no stockpiling is allowed on-site.

  The working environment meets the standards.

  The processing workshop must have good ventilation and be equipped with a forced exhaust system (especially in the enclosed molding areas). Special exhaust treatment devices should be installed for toxic and harmful gases (such as formaldehyde, styrene, and isocyanates). Smoking and the use of open flames are strictly prohibited in the workshop. Bringing fire sources is also forbidden. Fire prevention and explosion-proof warnings as well as static discharge devices should be set up at the entrance of the workshop.

  Equipment and Tools Inspection

  Before starting the machine, check whether the temperature control, pressure, and transmission systems of the processing equipment (such as injection molding machines, extruders, mixers, hot presses, etc.) are normal, and whether the safety protection devices (protective covers, emergency stop buttons, over-temperature/over-pressure alarms) are in good condition; check that the pipelines (raw material transportation, cooling water, steam) have no leakage, and that the electrical equipment is explosion-proof (suitable for processes with solvent evaporation), to avoid dangerous electrical sparks.

  II. Core Process: Operational Safety Standards

  (1) Melting / Mixing / Plasticizing (high-temperature processes such as injection molding, extrusion, granulation, etc.)

  Strictly control the temperature, rotation speed and pressure according to the resin process parameters to avoid resin decomposition and carbonization due to overheating, and to prevent the generation of toxic gases (such as formaldehyde released by phenolic resin when overheated, and hydrogen chloride released by polyvinyl chloride when overheated). Even in extreme cases, it may cause the materials to spontaneously ignite.

  When operating high-temperature equipment, wear heat-resistant protective gloves, goggles and heat-resistant work clothes. Avoid direct contact with molten resin, high-temperature feeders and molds to prevent burns. It is strictly prohibited to clean the sticky materials inside the equipment with hands directly. Use special tools (copper scrapers to avoid sparks).

  If there is a blockage or overpressure during the operation of the equipment, stop the machine, cool it down and relieve the pressure before handling the issue. It is strictly prohibited to operate under pressure. When cleaning the remaining materials in the equipment, do it only after the materials have completely cooled down to prevent the splashing of residual hot materials.

  (2) Formation / Solidification (molding, pouring, winding, bonding, etc.)

  When applying resins that are diluted with solvents (such as unsaturated polyester and epoxy resins), proper ventilation must be ensured. Wear a gas mask / activated carbon mask and nitrile gloves to prevent inhalation of solvent vapors and skin contact (some solvents / curing agents are corrosive and allergenic; for example, isocyanates can irritate the respiratory tract and skin).

  During the curing process, if there are exothermic reactions (such as polyurethane and epoxy resin curing at room temperature), the feeding volume and curing environment temperature need to be controlled to prevent localized heat accumulation, which could lead to excessive polymerization and expansion of the material, or even cracking of the mold. For large-sized products during curing, temperature measurement points need to be set to monitor the temperature in real time.

  During manual operations (such as layering and pouring), avoid making the site messy to prevent tripping and falling. When using pressurized molding equipment (such as hot presses and hydraulic presses), ensure that the mold is firmly positioned and strictly prohibit extending hands or arms into the mold closing area to prevent crushing injuries.

  (III) Cutting / Polishing / Post-processing

  When cutting and polishing resin products, resin dust will be generated. It is necessary to wear dust masks and goggles, install dust collection devices in the working area, and regularly clean the dust to prevent inhalation of the dust which may cause respiratory diseases, or dust explosion when it accumulates and comes into contact with an open flame (such as polystyrene and polypropylene dust).

  When using cutting and grinding equipment, check that the protective cover is intact. It is strictly prohibited to remove the protective device for operation. During operation, maintain a safe distance between your hands and the cutting tools / grinding wheels to prevent mechanical injuries.

  When dealing with post-treatment of chemicals (such as desoldering and cleaning), use dedicated cleaning solvents to avoid reactions with resins or additives, which could produce toxic gases. The waste liquid after cleaning should be collected in accordance with hazardous chemical requirements and must not be discharged at will.

  III. Material Contact: Poison Prevention and Protection

  Skin protection: Avoid direct contact with chemicals such as resins, curing agents, and solvents. When working, wear chemical-resistant gloves (made of nitrile or chloroprene rubber, avoid using latex gloves as they are easily corroded by solvents). Wear long-sleeved work clothes and protective shoes. If the skin comes into contact with chemicals, immediately rinse with plenty of water. After coming into contact with corrosive materials (such as strong acid curing agents), first rinse with weak alkaline solution (such as soapy water), and then seek medical attention.

  Respiratory protection: Select protective equipment based on the working environment: Wear an activated carbon anti-toxic mask/safety goggles when there is solvent evaporation; wear a positive pressure air respirator when the concentration of toxic gases is high; wear a KN95 or higher dust mask in dusty environments to avoid long-term inhalation of dust.

  Eye protection: Wear goggles throughout the process to prevent resin liquid, solvents, dust, and debris from entering the eyes. If the eyes come into contact with contaminants, immediately rinse with clean water for at least 15 minutes and seek medical attention promptly.

  Emergency eyewash stations and shower facilities should be set up at the work site and kept ready for use at all times; regular occupational health checks should be conducted for the workers to detect any damage to the respiratory system, skin or eyes.

  IV. Equipment and Electrical: Key to Fire and Explosion Prevention

  All processing areas where solvent evaporation or flammable gas generation occurs must be equipped with flammable gas detectors, smoke alarms, and be linked to the exhaust system and fire-fighting equipment. When the levels exceed the standard, they will automatically trigger an alarm and activate the exhaust system.

  The electrical equipment, lines and switches are all of explosion-proof grade compatibility (such as Ex d IIB T4), to prevent fires and explosions caused by electrical sparks and static sparks; the operators wear anti-static work clothes and anti-static shoes, and the raw material transportation and equipment are well grounded to prevent static electricity accumulation.

  In the workshop, dry powder fire extinguishers, carbon dioxide fire extinguishers, and fire sand (suitable for resin fires; strictly prohibit water for extinguishing molten resin and solvent fires) are properly equipped in accordance with regulations. Firefighting equipment is placed in easily accessible locations and is regularly checked for effectiveness.

  During equipment maintenance, the machine should be shut down, power disconnected, and warning signs hung. The flammable materials in the barrel and pipelines should be cleared and replaced. After the concentration of combustible gases is detected to be within the standard range, the maintenance work can be carried out to avoid sparks generated during the maintenance process from causing danger.

  V. Waste and Emergency: Requirements for Follow-up Management

  Waste Disposal: The waste materials (resin waste, adhesive waste, solvent waste liquid, dust) generated during the processing are classified as hazardous chemicals and collected by qualified units for disposal. It is strictly prohibited to discard or incinerate them at will (some resin incineration may produce highly toxic gases such as dioxins); waste such as rags and gloves contaminated with chemicals are sealed and centrally disposed of.

  Emergency for Residue and Solvent Leakage: In case of residue or solvent leakage, immediately stop the machine, cut off the fire source, and evacuate the personnel at the scene; use sand and absorbent cotton to absorb the leaked substances. It is strictly prohibited to rinse with water (as the solvent will spread with the water flow, expanding the danger range); after ventilating the leakage area, proceed with the cleanup. The cleaned-up waste should be treated as hazardous waste.

  Accident handling: In case of a fire, immediately activate the fire-fighting equipment, cut off the power supply, evacuate the personnel, and call 119; in case of poisoning, burns, or mechanical injuries, immediately take emergency measures (such as rinsing and bandaging), and send to the hospital for treatment; the workshop has formulated a special emergency plan and regularly organizes emergency drills.

  VI. Personnel Management: Training and Policies

  All workers must undergo professional safety training and operation training, be familiar with the physical and chemical properties, process parameters and safety risks of the resin they process, master emergency response methods, and only be allowed to work after passing the assessment; unauthorized operation and illegal operation are strictly prohibited.

  Establish and improve safety management systems, including equipment operation procedures, hazardous chemicals management systems, and work permit systems (such as firework operations and confined space operations require approval); regularly maintain and service equipment, protective devices, and fire-fighting equipment, and keep records.

  Clear safety warning signs (for fire prevention, explosion prevention, poison prevention, mechanical injury prevention, and the requirement to wear protective equipment, etc.) should be set up at the work site. Unrelated personnel are strictly prohibited from entering the processing area.

  VII. Special Resins: Key Safety Points for Specific Applications

  Some synthetic resins have specific safety requirements that require extra attention:

  Polyurethane resin: The isocyanate monomer is prone to absorbing moisture and decomposing, generating toxic gases. It will react vigorously when in contact with amines or water. During storage and operation, keep it dry. Strictly prohibit contact with water, acids, and alkalis; During curing, there is a significant heat release, and the amount of material added must be strictly controlled.

  Phenolic resin: When processed at high temperatures, formaldehyde is released. Adequate ventilation is necessary and a special mask for formaldehyde protection should be worn. After the resin solidifies, it becomes brittle and generates a lot of dust during grinding. Therefore, enhanced dust prevention measures should be taken.

  Unsaturated polyester resin: Uses styrene as the crosslinking agent. Styrene is volatile, flammable and toxic. No open flames are allowed in the operation area. Enhance ventilation to prevent the accumulation of vapors.

  Polyvinyl chloride (PVC): During high-temperature processing (above 180℃), it is prone to decomposition and release hydrogen chloride. The processing temperature must be strictly controlled. An acidic gas absorption device should be equipped, and the operators should wear acid-proof protective gear.

  industrial dpnp sourcing solutions https://www.epchems.com/dipropylene-glycol-monopropyl-ether

• everoneeu everoneeu

  • 283 posts
  Posted in the topic What are the selection principles for the 30 Inch 4 Burner Ceramic Cooktop? in the forum News and Announcements

  April 20, 2026 3:48 AM BST

   

  The principle of the 30 Inch 4 Burner Ceramic Cooktop is the electromagnetic induction phenomenon. Using alternating current passing through coils to generate a changing alternating magnetic field, a changing magnetic field causes eddy currents to occur inside conductors. What are the selection principles for this? Here is the summary by the editor:

  1. Fire prevention principle.

  The 30 Inch 4 Burner Ceramic Cooktop is a place where open flames are used in modern households. The flame-retardant ability of the material determines the reliability of kitchen equipment and even the household, especially the flame-retardant ability of the surface of kitchenware, which is an important criterion for choosing kitchen equipment. Therefore, the surface materials of kitchenware produced by regular kitchenware manufacturers are all made of non-flammable and flame-retardant materials.

  2. Hygiene principle.

  The 30 Inch 4 Burner Ceramic Cooktop should have the ability to resist contamination, especially to prevent contaminated food from being exposed to pests such as cockroaches, rats, and ants, so as to ensure the internal quality of the entire kitchenware. Currently, some cabinets on the market have already sealed with anti-crawling strips. This technology can effectively prevent food from being contaminated.

  3. Principles of Beauty.

  The 30 Inch 4 Burner Ceramic Cooktop not only demands an attractive appearance and color, but also requires durability. Therefore, it demands resistance to pollution and good cleaning performance. This requires the surface material to have good oil and smoke resistance, so that the kitchenware can keep its surface clean and new for a long time.

  4. Principle of Convenience.

  The operation of the 30 Inch 4 Burner Ceramic Cooktop should have a reasonable process. Therefore, in the design of the kitchenware, it is very important to design the arrangement of each part according to the correct process to facilitate future use. Then, the height of the stove and the position of the hanging cabinet directly affect the convenience of use. Therefore, it is necessary to choose kitchenware that conforms to ergonomic principles and kitchen operation procedures.

  30 Inch 4 Burner Ceramic Cooktop https://www.dopeninductioncook.com/30-inch-electric-cooktop-4-burner-7400w-ceramic-stove.html

   

• everoneeu everoneeu

  • 283 posts
  Posted in the topic 2 How to avoid noise when using the Burner Electric Cooktop Touch Control in the forum News and Announcements

  April 20, 2026 3:48 AM BST

   

  2 How to avoid noise when using the AC power of the Burner Electric Cooktop Touch Control?

  1. When purchasing the Burner Electric Cooktop Touch Control, avoid confusing it with a hot pot electromagnetic stove.

  Electric stoves do not discriminate against pots. Whether they are made of iron, aluminum, clay, or ceramic, they can all be used. Therefore, the store manager who chooses a ceramic soup pot for the hot pot can also choose an electric stove. Only special pots and pans, such as traditional stainless steel pots, can be used on the electric ceramic stove.

  2. Check if the non-heating areas of the 2 Burner Electric Cooktop Touch Control get hot during use

  At present, the heating range of electric ceramic stoves in the world is limited to the heating area of the stove surface. Other areas are equipped with insulation measures, which will not cause too much trouble or uncertainty for users.

  3. Is the sound of the fan abnormal or noisy

  Try it out and listen for other strange sounds or noises. You must be clear about this to avoid inconvenience in the future.

  4. Check if the heating speed of the 2 Burner Electric Cooktop Touch Control meets the current national standards

  At present, most electric ceramic stoves have a temperature of basically 600℃. Usually, after using the electric ceramic stove, the temperature on the stove surface is still very high. At this time, it is good to place some cold food on it for heat exchange or leave it in a ventilated place to slowly freeze.

  The Burner Electric Cooktop Touch Control does not require an open flame or conduction heating to generate heat directly at the bottom of the pot. The heat efficiency has been greatly improved. It is an energy-saving kitchenware, completely different from all traditional conduction heating kitchenware with fire or without fire.

  2 Burner Electric Cooktop Touch Control https://www.dopeninductioncook.com/2-burner-electric-cooktop-with-sensor-touch-control.html

• everoneeu everoneeu

  • 283 posts
  Posted in the topic What are the main characteristics and advantages of China-made factory-assembled power supply modules (SMPS) for CCTV systems in the forum News and Announcements

  April 20, 2026 3:42 AM BST

   

  Firstly, the China factory's SMPS for CCTV systems boasts fast start-up and high conversion efficiency. It's worth mentioning that after improvements, its performance and functionality in all aspects have been greatly enhanced, and the speed of current conversion has been significantly increased, resulting in a substantial improvement in its overall work efficiency. Therefore, people don't need to worry about its conversion speed at all.

  Secondly, it must be said that the safety of China factory's SMPS for CCTV systems is excellent. Electrical safety is of utmost importance, and during its development, the researchers carefully considered various scenarios such as short circuits, negative voltage, and overtemperature, and devised corresponding measures to address these issues, making it inherently capable of resolving them. Therefore, it is a very safe power tool, and there is no need to worry about potential safety hazards during use.

  Thirdly, the China factory's SMPS for CCTV systems exhibit excellent stability. In the event of insufficient voltage or negative pressure, they can maintain their performance without alteration.

  Characteristics

  1. High conversion efficiency and fast start-up;  

  2. Excellent safety performance: The product is equipped with five protection functions, including short circuit, overload, over/under voltage, and overtemperature protection;  

  3. Good physical properties: The product adopts an all-aluminum shell, featuring excellent heat dissipation, hard anodized surface treatment, good friction resistance, and resistance to certain external forces such as squeezing or impact;  

  4. Strong load adaptability and stability

  Main features and usage precautions of China factory's SMPS for CCTV systems

  Usage precautions

  1. The DC voltage must be consistent. Each China factory SMPS for CCTV systems has an input DC voltage value, such as 12V, 24V, etc. It is required that the selected battery voltage must be consistent with the DC input voltage of the China factory SMPS for CCTV systems. For example, a 12V China factory SMPS for CCTV systems must be paired with a 12V battery.  

  2. The output power of China factory's SMPS for CCTV systems must be greater than the power usage of the electrical appliances, especially for appliances with high starting power, such as refrigerators and air conditioners, and a larger margin should be left.  

  3. The positive and negative poles must be connected correctly. The DC voltage inputted by the China factory's SMPS for CCTV systems is marked with positive and negative poles. Red indicates the positive pole (+), and black indicates the negative pole (-). The battery is also marked with positive and negative poles, with red indicating the positive pole (+), and black indicating the negative pole (-). When connecting, ensure that the positive pole is connected to the positive pole (red to red) and the negative pole is connected to the negative pole (black to black). The diameter of the connecting wire must be sufficiently thick, and the length of the connecting wire should be minimized as much as possible.  

  4. It should be placed in a ventilated and dry place, protected from rain, and kept at least 20cm away from surrounding objects. Keep it away from flammable and explosive materials. Do not place or cover other items on this machine. The operating ambient temperature should not exceed 40℃.  

  5. Charging and inverting cannot be performed simultaneously. That is, the charging plug cannot be inserted into the electrical circuit of the inverter output during inverting.  

  6. The interval between two power-on attempts should be no less than 5 seconds (with the input power disconnected).  

  7. Please use a dry cloth or an anti-static cloth to wipe and keep the machine clean.  

  8. Before connecting the input and output of the machine, please first properly ground the machine's casing.  

  9. To avoid accidents, users are strictly prohibited from opening the chassis for operation and use.  

  10. If you suspect that the machine is malfunctioning, please do not continue to operate and use it. Instead, promptly cut off the input and output, and have it inspected and repaired by qualified maintenance personnel or a repair unit.  

  11. When connecting the battery, ensure that your hands are free of any other metal objects to prevent battery short-circuiting and potential burns to the human body.

  12. Operating environment: Considering safety and performance, the installation environment should meet the following conditions:

  1) Dryness: Avoid immersion in water or exposure to rain;

  2) Shady and cool: Temperature between 0℃ and 40℃;  

  3) Ventilation: Ensure that there are no foreign objects within 5cm of the shell, and that the other end faces are well ventilated.

  china factory smps for cctv systems https://www.aeolisstech.com/12v-24v-48v-switching-power-supply-industrial-smps-for-led-cnc-cctv10.html