An instrument on the SMC pressure sensor will not be adjusted, the instructions do not understand too much, simple and clear instructions to adjust the pressure step.For example, only after opening out1 and adjusting the P-1 and P-2, how does the display pressure come from, and how can I get the pressure I want?
SMC gas pressure switch, there are two modes, that is higher than P1, lower than P1, there is output between P1 and P2, that is higher than P1, there is output, or below P2, there is output,
The inlet pressure sensor is used to sense the vacuum behind the door to door in front of the inlet solar term this part of the air inlet pipe, with the solar term door position sensor to control the amount of air injection valve oil flowmeter is volume measurement of flow path in the air. Generally the instantaneous flow rate of a cubic meters / hour, the cumulative flow units of cubic meters the principle is in the flow path...1., the output signal isolation 2. amplification (not high, then can be a level of amplification, if required high, please use multi-stage amplifier), Louzhu request magnification 10 times, 1~4V, again big easy to distortion. Finished！To use analog module and you have to support, and then use PLC Analog reading instructions, such as: MITSUBISHI's TO/FROM instruction, as read after the existence of the register, the register is best to use the power to keep the memory.Many digital pressure sensors have to do, depending on what brand you choose and the use of requirements, it is easy to askGo to SMC China's official website1, I have never used the product. 2, don't confuse pressure limits into pressure measurements. 3, at present, I have contacted the big brand pressure transmitter seems to be able to measure negative pressure (which is related to the principle of measuring film box structure). 4, you use the pump as the air compressor, no problem in theory, but should pay attention to the heat problem, not The loss outweighs the gain.
Today, I happen to meet the debug SMC digital pressure reducing valve:There are three buttons on the panel: up, S (set) and downFirst press "S" to enter the setting mode, it will show "P1" or "N1", P1 is the ordinary output mode, N1 is an alternate output, and you have only one out1, only P1, N1 can ignore, ignoreP1 and a value alternately flashing, this is to press up, down key, adjust this value size, this value is our set value, for example, 5 bar is greater than this value, there is outputWhen the settings are complete, press the "S" button to complete the settingsIf there are two output out2, then set P2 or N2, none will be ignoredThen press "S" to appear "P1H" or "P1L", and a value, which is setting the upper and lower tolerances, such as 0.5 bar, which means that 4.5bar has outputIf you press "S" for more than 2 seconds, you go to the function setting "F0". "F1". Generally speaking, this doesn't work. Just one "F0" is fine. Ignore it anywayIf you see "HYS" is "hysteresis" means, that is greater than 5,0bar, there is an output, but if there is a leak, the pressure reduced to 4.5bar, there are outputsIf at the same time press "up", "down", about 1 second, will be cleared, the pressure clearedThe pressure shown is the pressure of the current pipeline. Take the top cover of the pressure reducing valve out and turn it clockwise. The pressure changes. Transfer to the pressure you need and press the top cover back
