Safety instructions for the use of mold test chambers
The mold test box is used to assess the damp heat test and aging test of various electrical appliances, instruments, materials, parts, and equipment under different temperature and humidity conditions. It is mainly suitable for aerospace products, materials, electronic products, and various electronic vital parts. In the hot and humid environment, inspect its various performance indicators.
The mold test chamber is a test equipment in the fields of aviation, automobiles, home appliances, scientific research, etc. It is used to test and determine the electrical and electronic vitality parts in the humid and hot environment to inspect their various performance indicators.
Mold test box is a new generation product with simultaneous high temperature and high humidity function. The temperature and humidity are digitally displayed, and the instrument adopts an intelligent instrument with PID function. The humidity meter uses a wet bulb as the measuring sensor, and only needs to be filled with distilled water regularly, which is extremely convenient to use and maintain. The advanced electric heating humidification device guarantees the widest range of dry humidity requirements, and has the automatic control function of water cut. The inner tank is made of stainless steel, with four-corner arcs, and the bottom is stretched and formed at one time. The outer shell is in accordance with European plastic spraying process standards.
Mold test chamber safety instructions
1) Before using the instrument, you must carefully read all instructions and instrument instructions.
2) The rated parameters of the power socket provided by the user should be greater than the electrical rated parameters of the machine, and have good grounding measures.
3) The use environment of the instrument should be in a well-ventilated room
4) Opening the door of the test box during the test will cause fluctuations in temperature and humidity in the box; during the test, if the door is opened many times or the door is left open for a long time or the test sample emits moisture, it may cause the heat exchanger of the refrigeration system Not working properly due to freezing
5) The mold test box is used for artificially accelerating the propagation of mold, and assessing the anti-mildew ability and degree of mildew of electrical and electronic products.
6) The mold test box body is formed by CNC machine tools, with beautiful appearance and non-reactional handle, which is easy to operate. The inner bladder of the box adopts imported stainless steel mirror panel, and the outer bladder of the box is sprayed with A3 steel plate, which increases the appearance texture and cleanliness. The water replenishment tank is placed in the lower right part of the control box and has automatic protection against water shortage, which is more convenient for the operator to replenish water.
The large observation window is equipped with an illuminating lamp to keep the inside of the box bright, and using the built-in tempered glass in the heating body, the situation inside the box can be clearly observed at any time. The humidification system pipeline is separated from the control circuit board, which can avoid failures due to water leakage in the humidification pipeline and improve safety. The piping circuit system of the waterway system adopts door opening, which is convenient for maintenance and overhaul. The box body is insulated with ultra-fine fiber insulation cotton, which can avoid unnecessary energy loss.
7) The mold test chamber is suitable for aerospace products, materials, electronic products, and various electronic vital parts to test their performance indicators in a humid and hot environment.
Sunshine carbon arc aging machine (is the product to be tested in a closed pressurized test, through heating, so that the water between the test chamber compartment boiling and steam, to be water steam sharply to drive out the cold air in the pot from the exhaust valve, and then close the exhaust valve, continue to heat, at this time, because the steam can not overflow, so that the boiling point increases, get higher than 100 ℃ temperature, so as to get a saturation of steam pressure.
Exploring the sealing problem of sunlight carbon arc aging machine.
In high temperature conditions, such as doing 135 ℃ end high temperature situation, the pressure difference between inside and outside the test chamber increases sharply, this time to test the test chamber body sealing do how? If the seal is not good, there will be serious air leakage, that the test chamber will not get a saturation of the vapor pressure, so as not to achieve the test conditions. This shows that the PCT high-pressure accelerated test chamber sealing has become a key issue. Sealing problems arise, some are design problems, some are maintenance problems. Therefore, we should strictly follow the equipment maintenance manual in the use of equipment for regular maintenance to ensure that the normal operation of equipment, technical parameters do not deviate.
Sunshine carbon arc aging machine (mainly used for solar photovoltaic materials, circuit boards, semiconductors, communications equipment, magnetic materials and other industry products of high humidity, high temperature, high pressure performance, can accelerate the exposure of products in the development or production of bad or defective.
Taber abrasion meter is mainly used to test the abrasion resistance of leather and plastic materials by rotating and grinding, using different kinds of abrasive wheels to rotate and rub on the sample to test the abrasion resistance of leather and plastic materials. It is used for testing the electrostatic properties of fabrics after frictional charging under laboratory conditions, and also for testing the anti-static properties of anti-static clothing and anti-static fabrics, and is suitable for Class A and Class B anti-static workwear.
Taber abrasion meter instrument characteristics. 1、Set device consists of friction device and potential device 2, friction device including friction bar, pad, pad seat and insulating rod 3, potential determination device consists of Faraday cylinder, capacitor and potentiometer 4、Positioning: Faraday cylinder: ground, electrostatic potentiometer: laboratory table (or desktop)
The age of Voice over IP (VoIP) has become the new standard in telecom. The increasing advantages of connecting your phone system, such as the New Rock pbx system, to the internet is obvious, but that doesn't mean you're required to give up control of the system to a third-party.
VoIP comes in many forms, With SIP trunking, the IP Office can send your calls over the internet. This provides much of the savings you would recognize going to a 100% VoIP phones solution, without moving all of your equipment to an offsite data center while maintaining control and uptime.
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A hybrid PBX combines existing legacy PBX equipment with VoIP. A PBX connects internal users to the outside world with a PRI or BRI, which has 24 channels. There are often many PRIs to connect hundreds of phones. In a hybrid PBX, these PRIs connect to a device—this is the Hybrid PBX itself—and the two devices connect to the outside world via both PSTN trunks and SIP credentials. The hybrid PBX also has many IP extensions to connect directly to IP phones in the office. On one side of the device, there are number of Ethernet and telephone jacks; on the other, there is usually a WAN (to the internet), a LAN (to the internal network), a console port, and LED lights to indicate which lines are active. Asterisk, and its many derivatives, is the most popular method of deploying hybrid PBX.
A hybrid PBX has many of the same great features you can expect from VoIP services, including call rules, auto-attendant, and hold queues. The hybrid PBX also has the capacity for virtual conference rooms, fax over IP, and videoconferences. The hybrid PBX also can do SIP trunking. The most important feature of the hybrid PBX is that if either the legacy PBX or the VoIP server isn’t working, it automatically switches over to the other network.
One of the biggest benefits to having a hybrid PBX is for remote offices and secondary locations. Calls from one office to the other go through the hybrid PBX, so there are no long-distance charges. If a location is temporary, such as an amusement park or construction site, you can use cordless phones to connect directly to the hybrid PBX instead of going through the building’s telephone lines.
One of the biggest benefits to having a hybrid PBX can also be its biggest drawback: cost. You have to buy and maintain an on-premise device. The largest hybrid PBXs are well over a thousand dollars. But, you can end up saving money in the long term by owning your own equipment, rather than having a third party host your PBX.
Export of centrifugal pump on startup, pump haven't water in the pipeline, so did not exist pipeline resistance and improve high resistance, the centrifugal pump starts, the pump head is low, traffic is very big, the pump motor, shaft power output is very big, according to the pump performance curve), it is easy to overload, it can make the pump motor and the circuit are destroyed, therefore starts to close the outlet valve, can make the pump normal operation. If the axial flow pump is the other way around, it is necessary to open the valve to start. At this time, the power of the motor is very small in the short term, there is no resistance to vibration, and it will run in large flow. There are often pump vibration, noise, and even overload operation of the motor, which will burn out the motor. Close the outlet valve, equivalent to artificially set pipe resistance pressure, with the normal operation of the pump, gradually start the valve, so that the pump along its performance curve law gradually normal work. Related products:
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