IFM Sensor PM2058
- Specifications
- Q&A
- Reviews
-0.0125...0.25 bar;
-12.5...250 mbar;
-5...100.4 inh2o;
-1.25...25 kpa;
Aseptoflex external thread Aseptoflex;
analogue signal
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04/13/2022
In the air conditioning and refrigeration system, the blockage fault of expansion valve often occurs. The general blockage faults mainly include "ice blockage" and "dirty blockage".
06/17/2020
What are the three tubes of refrigerator compressors used for 1. The general refrigerator compressor has three pipe ports; 2. The exhaust port discharges the compressed refrigerant to the condenser and then dissipates heat. The temperature of th 器2 䀀 ᅵ皥 䖒皦즠Ʋ奌ི 㲈Ʋ 䌁皦 ᮔDž༬皧奖ིЀ 呄ᠾ鹨់༹皧 ࠄ 00령ꐱ댁珵뛐珵Љ 䕄ྦ 뤂ᐱ뚜珵 ᴴᏩ呄ᠾ퍘ᒥ 鹨់ᩄ ꋔྦ 瑉浥 巠皱㙲皦抐皱 巠皱 ੨皦柘皱 ᅵ皥 ب 巠皱㙲皦忈皱 ੨皦柘皱 즠Ʋ
06/25/2020
Briefly explain the principle, advantages and disadvantages of screw compressors The screw compressor has the characteristics of small size, light weight, easy maintenance, etc. It is a model that develops faster in refrigeration compressors. On the one hand, the screw profile and structural design have made great progress. On the other hand, the introduction of special milling machines for screw rotors, especially grinding machines, has improved the machining accuracy and processing efficiency of
12/01/2021
Last year was a very hard year with the COVID-19 epidemic, everyone saw the important role of the medical device industry.
09/06/2020
At present, synthetic lubricants are widely used in the compressor field. Among them, oil-injected and oil-immersed rotary screw air compressors and large reciprocating compressors are one of the most used markets. For example, the sales volume of synthetic compressor oil in Western Europe was 6000t in the late 1980s, and it rose to 10000 in the early 1990s. The sales volume in the United States has exceeded 15,000 tons, and it is increasing at a rate of more than 10% per year.
07/06/2020
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07/01/2020
How is the absorption refrigeration cycle of Taikang compressor Taikang compressor is different from other brands of compressors, this feature is the absorption refrigeration cycle. Many people may not understand what is the absorption wet cooling cycle, it is composed of generator, absorber, condenser, evaporator, solution pump and restrictor.
06/19/2020
What are the causes of air conditioning trip 1. The contradiction between the rated current of the air conditioner and the current carrying capacity of the wire. Here are two formulas involved: ①The rated current of air conditioner I=P÷U ÷power factor, the power remains unchanged, the smaller the voltage, the greater the current required. ② The current carrying capacity of the wire I=U÷R, the voltage is proportional to the current. So when the power supply voltage is normal, we must consider the line voltage drop. The longer the line, the greater the resistance, the greater the voltage drop, and the smaller the output current at the end. However, because the power of the load remains unchanged, the voltage becomes smaller, and the current that needs to be output will be larger. At this time, the wire is forced to overload, and the time will cause heating, and eventually cause the tripping of the open circuit. Some friends said that the heat of the wire will not cause the tripping of the circuit breaker. In fact, the manufacturer of the air switch has made it clear in the relevant manuals that the heat of the wire will cause the air switch to trip. Because the wire heats up, the crimp terminal will also heat up, and the resistance will become larger and larger. The larger the resistance, the greater the current consumption, and the hotter it will be, a vicious cycle. 2. Leakage During the daily maintenance work, we will encounter the situation that the air circuit trips due to the leakage of electricity. At least I have not experienced it once or twice. Regardless of the leakage of the neutral line or the leakage of the live line, a long time will cause the circuit breaker to trip. Why does the electric leakage cause the MCB to trip? There are two situations. ① Good grounding. At the beginning, the leakage current was not large, and as time went by, the leakage current became larger and larger, and eventually evolved into a short circuit to ground, unable to close. ②There is no ground wire. If the equipment is not connected to the protective ground, when the wire leaks to the equipment, it is equivalent to adding a large shunt resistance. Like this problem, if the air conditioner does not have a ground wire, when the wire leaks to the air conditioner, the air conditioner is a very large shunt resistor and will consume a lot of current. Eventually, the wire will heat up or trip open. How to determine whether the trip caused by the above two aspects can be done with a clamp ammeter. ① Measure the voltage at the input and output to see if there is a significant change in voltage drop. ②Measure whether the output current exceeds the standard. So my suggestion is: first measure the supply voltage to see if it is within the allowable fluctuation range. Then measure the current to see if it exceeds the rated ampacity of the wire. Finally, check the data one by one according to the measured data to find out the reason.
07/21/2020
When the compressor is running, some abnormal conditions may occur, such as: exhaust pressure is too high, suction pressure is too low, oil pressure is insufficient, motor is overheated, excess liquid enters the cylinder, etc. In the event of an abnormal situation, the compressor will be damaged if there is no protective measure.
08/20/2020
Condensation water in the industry is mainly caused by the large temperature difference between the ambient temperature and the cooling water temperature of the chiller.