The first is pressure, and the transmitter cannot afford to lose it. In this case, look at the pressure connector for leakage or blockage, if not, check the wiring method and see if the power supply is normal, simple pressure to confirm if the output has changed, or if there is an output at the zero point of the sensor, if there is no change, the sensor is damaged, it may be cosmetic damage or other aspects of the system.
Second, the output of the pressure transmitter does not change, the output of the pressure transmitter changes suddenly, and the zero point of the pressure reducing transmitter cannot come back, which is likely to be a problem with the sealing ring of the pressure sensor. Because of the specification requirements of the sealing ring, after the sealing ring is tightened, the sealing ring is compressed into the sensor inlet, so that the sensor cannot enter, and the pressure medium cannot enter when the pressure is high, and the sealing ring is suddenly broken when the pressure is high, and the pressure sensor is changed by pressure. The best way to eliminate this problem is to remove the sensor and see directly if the zero point is normal. If the zero position is normal, the seal can be replaced and the test run can be carried out again.
Third, the output signal of the transmitter is unstable. The problem with this problem is that KEN is a stressor. The pressure source itself is unstable pressure, which is most likely caused by the weak anti-interference ability of the appearance or pressure sensor, the vibration of the sensor itself, and sensor malfunctions.
The fourth is that there is a large error between the transmitter and the pointer pressure gauge. Error is a normal phenomenon, and the normal error range can be confirmed; The latter problem is the effect of the orientation of the differential pressure transmitter on the zero output. Because the measuring range of the differential pressure transmitter is small, the sensor element in the transmitter will affect the output of the differential pressure transmitter. When deviceing, the pressure-sensitive part of the transmitter should be straight and straight in the direction of gravity, and the zero point of the transmitter should be adjusted to the standard value after installation.
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Notes on Linear Position Sensors – ifm
Whether it is a linear displacement sensor or a rope displacement sensor, it often encounters a variety of problems when it is used, including quality problems, application problems, environmental problems, etc., but the use of problems is common, and improper use simply makes the sensor damaged. So what we're using ...
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Sensor performance indicators – ifm
Selection of sensitivity
In general, within the linear scale of the sensor, the higher the sensitivity of the sensor, the better. Because as long as the sensitivity is high, the value of the output signal corresponding to the measured change is relatively large, which is conducive to the signal processing.
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What are the characteristics of smart sensors?
1. High precision and high quality
Assuming that the data information collected by the sensor makes a mistake, it is equivalent to making a mistake from the source, and the transmission, analysis and use of all the data behind it are meaningless, so the accuracy and quality of the sensor are guaranteed.
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Sensors & Transmitters in a Nutshell – ifm
Conceptual understanding of sensors
The sensor is a kind of detection device, which can sense the measured audio, and can convert the perceived audio into an electrical signal or other required audio output according to the inevitable discipline, so as to satisfy the transmission, disposal, storage, display, recording and control of the audio.
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Analysis of sensor technical indicators - ifm
Because of the many technical goals of sensors, various data and literature have different perspectives, so that different people have different understandings, and even misunderstandings and ambiguities. To this end, the following are some of the top technical objectives of sensors:
1. Resolving power and resolution:
Definition...
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The principle of temperature sensors – ifm
Temperature sensor definition
A temperature sensor is a sensor that senses temperature and converts it into a usable output signal. Temperature sensors are the core part of the temperature measurement appearance, and there are many varieties. The temperature sensor is very accurate in measuring the ambient temperature, and is widely used in agriculture, industry, ...
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Precautions when switching the ifm on or off the power supply
The output status of the sensor when the power is turned on or off, whether it is detected or not, is OFF. In particular, when the power supply is turned on, the output condition is OFF for a certain period of time is called the initial reset. But in the following cases, the output will be momentarily ON(OFF) ...
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Use of the ifm OGD580 laser distance sensor
The OGD580 is a spaced sensor (PNP type) with two digital output channels, each of which can be set to normally open, normally closed, or closed, depending on the requirements.
OGD580 consists of three parts: laser emitter, ...
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Precautions for measuring hydrogen with pressure transmitters – ifm
Hydrogen is a colorless and odorless gas, with a density of 0.09 g/L (the lightest gas) under standard conditions, and is poorly soluble in water. At -252 °C, it becomes a colorless liquid, and at -259 °C, it becomes a snowflake-like solid.
When measuring hydrogen, pay attention to:
Hydrogen...
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Installation and maintenance of ifm sensors
1. The wiring socket is connected at both ends of the inductance coil, and the other two ends are connected to the liquid level signal input end of the secondary instrument. When the inductor coil is open or the internal circuit is blocked, it should be replaced in time.
2. In order to commission and repair IFM ...
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Force sensor applications on robots
1. Constant force
Torque sensors were first used for polishing, polishing, and other applications. Because these applications are difficult to automate, the robot needs some feeds to confirm that its drive is sufficient.
By introducing a reaction circuit into your program, you can easily implement ...
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Introducing the ifm flow sensor SI5000
ifm, a multinational conglomerate that has been researching, producing and selling components and systems for signal detection, control and processing on a global scale for more than 30 years, attended the 2007 Beijing FA/PA and brought their latest flow sensor S...
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A detailed explanation of the working principle of ifm magnetic switches
The magnetic switch is different from our common switching devices, it is also called a magnetic switch, which is a line switching device that uses magnetic field signals to control. Perhaps many people will be interested in this new type of switch, so let's make a detailed explanation of the operating principle of the magnetic switch.
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Sensor selection method – ifm
Modern sensors are very different in principle and structure, how to reasonably select sensors according to the detailed measurement intention, measurement objectives and measurement environment, is the first problem to deal with when carrying out a certain quantity measurement.
When the sensor is confirmed, the corresponding measurement method ...
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The reason why the measurement results of the dynamic torque sensor do not match the accuracy – ifm
In the motor test system, the measurement of torque is often achieved by dynamic torque sensors.
The motor under test is connected to the dynamic torque sensor through the coupling, and the other end of the sensor is connected to the load motor through the coupling. When the system is operating, the motor under test is operating in the speed ring ...
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Troubleshooting of high-frequency pressure sensors during operation
1. When the pressure goes up, the output of the transmitter can't go up.
In this case, you should first check whether the pressure connection is leaking or blocked. If you admit that it is not, check the wiring method and check the power supply, if the power supply is normal, then briefly pressurize to see if the output changes, or observe the zero position of the sensor ...
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Advantages of IFM controllers:
1. The programming method of the programmable ifm controller is simple and easy to learn
Programmable ifm controller ladder diagram is the programming language of the more used PLC, its circuit symbols and expressions are similar to the schematic diagram of relay circuits, the ladder diagram language is intuitive, easy to learn and understand, understand the relay ...
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Applications in the field of ifm fiber optic sensors.
1) Urban construction
the use of interferometric screws and optical pressure sensors for bridges, dams, oil fields, etc.; embedding fiber optic sensors or reinforced fiber agglomerates in concrete; Traffic is monitored at airports using an interferometric fiber-optic vibration sensor system.
2) Civil Engineering and Environmental Supervision
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How to care for ifm sensors
1. When measuring the liquid pressure, in order to prevent the sensor from being damaged by overpressure, the device position of the sensor should prevent the impact of the liquid.
2. When measuring steam or other high-temperature media, it is necessary to connect a condenser such as a buffer pipe.
3. The impulse pipe should be installed in a place where the temperature fluctuation is small.
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ifm influences the sensor readings of gas detectors
Gas detector is an instrumentation tool for gas leakage concentration detection, which mainly uses sensors to detect the types of gases present in the environment, and gas sensors are used to detect the composition and content of gases.
Many environmental factors can affect gas detector sensing ...
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