The new ball presses recently released by our company are very popular with consumers. Now I would like to introduce the safety precautions for the use of ball presses. I hope customers pay special attention to the use of the ball presses:
Before installing the ball press, pipelines should be laid in strict accordance with electrical specifications, and strong and weak electrical signal lines should be isolated and routed to avoid interference. In outdoor open environments, independent external lightning protection measures should be taken. The dome itself should also be well grounded to prevent static accumulation from affecting the dome. The power, communication and video cables must be properly connected during installation. Please refer to the installation instructions carefully when connecting to confirm the communication method and corresponding pin definitions. Generally, the equipment should be installed in the later stages of construction to avoid a large amount of dust from entering the dome at the construction site, which directly affects its use effect and life.
Matters needing attention when installing ball press machine: power supply
To ensure the normal operation of the dome, the power supply should not be lower than the nominal value of the dome input voltage. When the nominal value is 24VAC, the voltage fluctuation should not exceed ± 25%. The common working voltage of the dome is 24VAC. At present, there are 220VAC model ball machines on the market. In essence, a transformer is built in the ball cover, and the ball machine is powered after voltage change. The wiring should emphasize the separation of strong and weak currents to avoid the interference of strong currents on weak currents. The dome camera has limited internal space, and the built-in transformer makes the strong and weak currents coexist, which affects the weak current signals. In addition, the built-in transformer will increase the burden of heat dissipation, thereby increasing the possibility that the built-in circuit will burn out. Depending on the site environment, you can choose local 220VAC to 24VAC, or remote voltage transformation, centralized power supply. When centralized power is supplied, full consideration should be given to the loss of electrical energy by the transmission line. Choose equipment with higher output power and increase the output voltage appropriately to bear the line voltage drop. For example, choose 28VAC output to power the remote dome camera.
Has the ball press been powered enough? It can pass the multimeter test. The method is to use a multimeter to measure the voltage of the power line at one end of the dome with the load (ball dome) turned on, and observe whether the voltage is within the scope of the dome. It is important to note that the power consumed by the outdoor dome is very different when the heater is started or stopped. When powering the outdoor dome, the maximum power required for the dome in the harshest environment must be considered. When the mains voltage fluctuation exceeds the range of + 5% to -10%, an AC voltage stabilization device should be provided. UPS can be installed to provide uninterrupted and stable power supply.
Matters needing attention when installing ball press: Grounding
The grounding of the dome is mainly divided into the housing grounding and the internal electrical grounding. The grounding of the shell is mainly used to prevent the accumulation of static electricity and electrical leakage. Outdoor ball machines must also be equipped with external lightning protection measures. Generally speaking, the outdoor dome casing installed on the pole support has naturally formed ground protection due to being screwed to the metal support, so no special treatment is required. The data cable and video cable inside the dome camera have been properly grounded. Connect the GND terminal inside the dome camera to the ground wire to ensure the equipment is effectively grounded.
Matters needing attention when installing ball press machine 3: Ground loop circuit
Even if the equipment is effectively grounded, there are differences in the zero potential between the dome camera and the center equipment, and there is an imbalance in the power load, which will still cause a ground potential difference. This potential difference generates a current through a closed loop formed by the coaxial cable, causing interference, thereby affecting the normal transmission of the video signal, and usually manifests as horizontal clutter in the middle of the image. The most effective way to solve the problem of the ground loop is to add a ground loop isolator in the video transmission. At present, most indoor / outdoor dome video signals are still transmitted by coaxial cables, and some domes are far away from the center equipment, which makes it easier to form ground loops. If the optical transceiver is used for signal transmission, the influence of the ground loop can be avoided more effectively.
Note 4 when installing ball press: waterproof
Outdoor ball presses must be waterproofed. For suspended installation, there is a gap between the dome and the bracket. In case of rain or snow, water will seep into the interior along the gap and cause harm. Therefore, waterproof sealing measures should be taken during installation to prevent rainwater from entering the dome mounting bracket from the screw interface. The original bracket is recommended. The original bracket fully considers the waterproof problem, such as the tilting design makes the dome screw end slightly higher. Even if the water enters the bracket, it will only flow back into the column, and will not flow into the ball machine. Therefore, if users make their own brackets, they should fully consider the waterproof factor. Why are there water drops in the stand? Generally, during the day, the temperature is high, and the water vapor in the pole enters the support. When the temperature decreases at night, water vapor will condense into water droplets and condense along the wall of the support. When the stand is not tilted or tilted in the opposite direction, water droplets will flow into the dome along the wall, causing harm. In order to reduce water vapor from entering the bracket, the joint between the bracket and the pole can be sealed with plasticine or silicone.
Matters needing attention when installing ball press 5: Heat dissipation
The heat dissipation problem of the ball press must also be considered. Some brands of dome cameras on the market do not have outdoor models, so they cannot be directly used outdoors. They must be equipped with accessories such as outdoor shields. The Pelco outdoor dome camera includes standard elements such as a sunshade, heater, and dual cooling fan, making it suitable for outdoor harsh or extreme temperature differences.
After the ball press is installed, the single unit debugging should be performed first, which can reduce the burden on the whole system debugging. Pelco's dome provides RJ45 interface for single unit debugging. Connect the dome camera with the debugging tool kit through the RJ45 interface, you can debug the dome camera's output image, PTZ rotation, lens stretching, etc. You can also enter the dome menu for further initial settings.
Hope new and old customers come to negotiate and consult, we warmly welcome all customers to visit us!
Address: No. 18 Tongxing Street, Mazhai Economic Development Zone, Erqi District, Zhengzhou City
Xinzhong Machinery is a joint-stock enterprise focusing on production machinery, integrating scientific research, production and sales. The company area is located in Zhengzhou Mazhai Economic Development Zone, covering an area of 60,000 square meters, with more than 35,000 square meters of standard workshops, more than 180 main processing equipment, and more than 1,000 online employees. Mainly produces ore powder ball press , hydraulic ball press , briquette ball press , dry powder ball press , desulfurized gypsum ball press , fire-free brick machine , road tile machine , sand making machine , ball mill , Raymond mill , Impact crusher and other products. Welcome new and old customers to visit and guide.