The freeze dryer should keep the ambient temperature moderate
Shanghai Haozhuang Instrument Co., Ltd. has developed the LNB brand freeze dryer, which is energy-saving, environmentally friendly and domestically leading. Shanghai Haozhuang Instrument Co., Ltd. Haozhuang has a recognized team of experts in the industry and first-class scientific and technological talents. With a deep understanding and mastery of scientific instrument technology, it operates a variety of freeze dryers and provides you with perfect pre-sales and sales. And after-sales service, professional provision of technical consulting and other services, Shanghai Haozhuang looks forward to your consulting purchase!
Shanghai Haozhuang teaches you how to operate the freeze dryer correctly, as follows:
Boot operation:
1. Turn on the power cord, and then check whether the main power indicator is flashing. The flashing indicates that the power is on.
2. Press the "Total Power" switch for three seconds, at this time the "Cold Trap Temperature" display window starts to display the cold trap temperature, and release this key.
3. Press the “Refrigerator†key, the refrigerator starts to run, and the temperature of the cold trap gradually decreases. In order to allow the cold trap to fully absorb water, the pre-cooling time should be no less than 30 minutes.
4. Press the "Vacuum Gauge" key, the vacuum digital display is "110" and the "103" indicator lights.
5. After the pre-cooling, place the prepared items in the drying tray, cover the plexiglass tube, and tighten the inflation valve and the drain valve (located on the right panel) clockwise.
6. Press the "vacuum pump" key, the vacuum pump starts to work, the digital display drops below 20Pa, and the freeze-drying process begins. Note: When the vacuum pump starts to work, press down the plexiglass cover for a while to facilitate sealing.
7. For the multi-manifold type, the rubber valve should be closed first (the spool length should be upward), and when the vacuum reaches 20Pa or less, insert the pre-frozen bottle into the lower port of the rubber valve and rotate the plastic spool 180 degree. Note: At this time, the indication of the vacuum gauge will rise. When the vacuum reaches 20Pa or less, refill the next bottle.
Shutdown operation:
1. First, slowly (must be slow, otherwise the oil in the vacuum pump will suck back), open the "inflation valve", and press the power switch of the "vacuum pump" at the same time, so that the air slowly enters the cold trap. If you need to fill with inert gas, connect the decompression pipe of inert gas to the "inflation port", and then slowly open the "inflation valve", so that the inert gas slowly enters the cold trap.
2. Press the "Vacuum Meter" and "Refrigerator" switches in turn to turn off. At this time, the indicator light is off, and the "total power supply" key is turned on. When the power is turned on for three seconds, there is no display and then release this key.
3. Lift the plexiglass cover, take out the items, store them, and the freeze-drying process ends.
4. After the ice in the cold trap turns into water, open the "drain valve" to drain the water.
5. Clean up the water and impurities in the cold trap, and maintain the equipment properly.
6. When the vacuum pump is not in use, cover the spout to prevent dirt from entering. 7. For the manifold type, close the rubber valves one by one and remove the lyophilized bottles and then repeat the shutdown operation.
Note: Do not switch frequently during the operation. If the refrigerator is stopped due to an operation error, it cannot be started immediately. Wait at least 20 minutes before restarting to avoid damage to the refrigerator. After freeze-drying each time, after the ice on the cold trap coil turns into water, clean it with a towel and freeze-drying. After turning on the "inflation valve" to inflate the cold trap, it must be slow to avoid damaging the vacuum gauge.
Maintenance of the instrument 1. The surface of the compressor heat sink should be kept clean, and it can be cleaned with a dry cloth or dry brush. 2. The rubber ring does not need to be oiled under normal circumstances, but it must be kept free of particulate impurities. 3. Keep the ambient temperature moderate, too high or too low will cause oil leakage. 4. Vacuum pump oil changes from light color to yellow, brown, brown or even black during use. The new oil should be replaced when it is brown. The scale of the oil should be ≤1 / 2. It needs to be changed when suspended matter is found in the oil window. oil. If the dirt in the oil separator above the pump exceeds 1/2, the oil needs to be drained.
Shanghai Haozhuang has a recognized team of experts in the industry and first-class scientific and technological talents. With its profound understanding and mastery of scientific instrument technology, on the basis of independent research and development of core technology of scientific instruments, it has not only developed low temperature constant temperature instruments, ultrasonic instruments, and cabinets. Instruments, microbiological instruments, ice-making refrigeration instruments, laboratory supporting instruments, and gradually formed a product pattern of various scientific instruments and technical reserve products. Shanghai Haozhuang Instrument has first-class scientific and technological talents, carefully build high-quality instruments for you, customers are welcome to buy!
Heat Transfer Lanyard
What is heat transfer Lanyard?
Heat transfer lanyard is sublimation lanyard is designed in the pattern, production copperplate, electric carving through the mechanical sub-color pattern engraved on copperplate. Copperplate printing machine and then get on the pattern printed on the PET film, and then through the mechanical heat transfer lanyard pattern is transferred to the product. You can see lanyards in use everywhere by businesses, schools, hospitals, at special events, conventions, reunions, and in many recreational activities.
Lanyard:
1. Material: Polyester,Nylon, cotton, PVC, bamboo fiber, tubular, reflective are also available.
2. Size: any size you want; regular sizes: width: 10mm, 15mm, 20mm, 25mm; Length: 900mm
3. Logo imprinting: Sublimation imprinting, Silk-Screen imprinting, Woven logo also can be offered.
4. Attachments: hook and buckles as shown in the below photos.
5. Color:any pattern or pantone color is OK
These are simple decorative device worn and used to protect your small belongings such as keys, ID cards, pens, pocket knife, flash and pen drives, whistles and electronic devices of various magnitude and size in order to prevent them loosing from yourself. Lanyards(Such as custom logo lanyard,heat transfer printing lanyard.) are used in situations where there is a good possibility of losing the object that you carry and use every day. These can be made to various size and length to serve various needs. Whether you are a corporate executive walking around with some sensitive information locked in your flash drive or a maintenance personnel carrying bunch of keys to the various doors of a building that you maintain, these lanyards become a handy tool for you to stay organized.
Lanyards are made from the best quality-assured and durable polyester. Polyester can get your lanyards a soft touch that gives you a quality product with a professionally finished look. Single or multiple color imprinting is possible for your lanyards. Images and texts on Imprinted Lanyards are guaranteed that it will not be damaged if washed or rubbed. We have multiple widths for polyester lanyards. We have 15 mm, 20mm and 25 mm of width for your polyester lanyards. Finish off your polyester lanyard with our wide selection of standard and optional attachments.
Why choose us?
a.Direct factory with low price
b.Professional design
c.Sample free
d.10 years export experience
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