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Small hot and cold shock test box use note
Small thermal shock test chamber is non-explosion-proof product (explosion-proof needs to be customized), please do not use it in the environment with flammable or explosive gas. In order to avoid small thermal shock, the test box is faulty, please provide rated voltage. Power supply within range. To prevent electric shock or malfunction and malfunction, do not turn on the power before installation and wiring are completed. Please try not to open the test box door during work. If it is opened...
View detailsCold and hot shock constant temperature and humidity test chamber operation steps
When selecting the appropriate model of the LNEYA hot and cold shock constant temperature and humidity test chamber, you need to pay attention to the operation and installation steps. The user needs to be well prepared for the installation work. The hot and cold shock constant temperature and humidity test chamber should be noted before use. The power supply voltage should be turned on. After the fan is started, open the door and select the required impact height. Then close the door and pres...
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Hybrid car battery test equipment cooling capacity description
Due to insufficient insulation thickness of the hybrid vehicle battery test equipment and pipeline or damage to the insulation layer, the loss of cooling capacity is increased, which affects the cooling effect. In the operation of the hybrid vehicle battery test equipment, once the outer surface of the insulation layer is found to have wet or frosted parts, it means that the thickness of the insulation material is insufficient or has been damp, and the insulation material should be added or r...
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Protection device details of circulating fluid temperature control device
The circulating pump overload protection function is to cut off the main power of the circulating pump when the circulating liquid temperature adjustment device is too large. Press the green button when resetting; the red button is the stop button, which is used during the test. When frequent protection, please check whether the voltage is under voltage (undervoltage is less than 15%, the power protector is not working), undervoltage is increased into current, forming protection. At this time...
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LNEYA high and low temperature heating refrigerator maintenance instructions
High and low temperature heating refrigerators use circulating water to replace circulating water regularly every month. If heat transfer oil is used, heat transfer oil should be replaced periodically every six months to one year. When the high and low temperature heating refrigerator is used for more than 150 degrees for a long time, check the heat transfer oil every three to six months, and decide whether to replace it according to the actual situation. When replacing the circulating oil, d...
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Why is there air in the reactor temperature control system?
The impurity gas in the reactor temperature control system is to increase the condensing pressure of the refrigeration system, thereby increasing the condensing temperature, increasing the exhaust temperature of the compressor, increasing the power consumption, reducing the cooling efficiency, and possibly the exhaust gas temperature is too high. The carbonization of the lubricating oil affects the lubrication effect, and in severe cases, the refrigeration compressor motor is burnt. The gas g...
View detailsExplosion-proof hot and cold machine winter maintenance instructions
When the explosion-proof type hot and cold integrated machine is used at the end of the day or when it is not used by the standby, be sure to disconnect the cooling water connection pipe, clean the remaining cooling water in the pipe, and store it in a dry place to prevent freezing and expansion. Damage to machine parts (such as coolers, pumps, connecting copper pipes). The method of removing residual water is as follows: 1. The water sequence series needs to disconnect the cooling water and ...
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Is the choice of a centrifugal pump or a volumetric pump in a pharmaceutical laboratory?
Performance: In order to be able to select the type of pump that is suitable in the pharmaceutical laboratory, it is necessary to have a deep understanding of its performance and understand the difference in its specific working principle. To this end, we must understand that the centrifugal pump is dependent on the pressure (or The variable flow phenomenon of the indenter, while the positive displacement pump has a more or less constant flow phenomenon independent of the pressure. Viscosity:...
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How to clean the battery cooling system of new energy vehicles?
The battery cooling system of the new energy model first unscrews the three screws on the upper part of the wet curtain, holds the louvers on the upper part of the wet curtain, gently pulls the wet curtain outward and then lifts it up slightly to remove the wet curtain. Then remove the top cover and the water distribution pipe assembly, unscrew the screw on the top cover, lift the top cover up, remove the hose clamp on the water pipe cooling fan and loosen the water supply pipe. The assembly ...
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Refrigeration heating circulator list resonance fault description
Refrigeration heating circulator leaderboard works: When the temperature of the reactor, reactor, rotary evaporator, extraction equipment, etc. of the refrigeration heating circulator needs to be rapidly increased or lowered, the equipment can quickly reach the set temperature. LNEYA's refrigeration and heating circulator list adopts a fully enclosed circulation system to avoid high temperature oil mist odor and low temperature absorption of moisture, which ensures that the working environmen...
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