Many people are stupid and can't tell the difference between the liquid level sensor and the liquid level switch, and even think that they are the same instrument. In fact, there is a big difference between them. The level sensor does not necessarily display the liquid level, but outputs the liquid level in the form of an electrical signal. The liquid level controller is a kind of controller that opens the valve for water discharge or water inlet according to the signal output of the liquid level sensor to keep the water level constant.
The function of the level sensor is to send out electrical signals, if you add the device that reads the electrical signal and display, it is an electronic level gauge, and if you add the device that reads the electrical signal and processes it, it is the level controller.
To put it simply, it is the following situation:
The liquid level switch is a switch on the vessel, which acts when the liquid water level arrives and gives a signal to the control.
The liquid level sensor can also have the function of liquid level switch, but it is more complex than it and can continuously display the status of the liquid level.
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Wiring and installation of pressure sensors – ifm
Wiring method
The wiring method of various sensors is basically the same, and the pressure sensor generally has a two-wire system, a three-wire system, a four-wire system, and some five-wire systems.
The two-wire system of the pressure sensor is relatively simple, and one wire ...
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Tips for setting CAN parameters for ifm controllers
1. ifm controller CAN parameters: communication cycle
In some applications, it is possible to set the monitoring time for SYNC packets generated by the master here.
Note that this moment is larger than the SYNC moment of the master. To go through the experiment ...
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The cause of the heating of the tube caused by the field effect transistor of the inverter - ifm
The MOSFET of the inverter works in the switching state, and the current flowing through the tube is very large, if the tube selection is not suitable, the driving voltage fluctuation is not large, or the heat dissipation of the circuit is not good, it can cause the FET to heat up.
1. Field effect ...
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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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ifm sensors detect objects contactlessly
Capacitive ifm sensors have many applications in everyday life. It is capable of inspecting non-metallic materials as well as non-touch methods to detect objects. The editor below explains how the sensor works.
Capacitive ifm sensors ...
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Considerations for the selection of industrial sensors
1. According to the measurement object and measurement environment
In order to carry out a specific measurement operation, it is necessary to consider the principle of the sensor first, which requires an analysis of many factors. Since, even for the measurement of the same physical quantity, there are sensors with multiple principles to choose from.
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Three major load cells – ifm sensors
1. Resistance strain gauge
The resistance strain gauge is a resistance wire mechanically distributed on a substrate made of organic materials, that is, it becomes a strain gauge. An important parameter for him is the sensitivity coefficient K. When his ends are subjected to the F force, they will elongate, that is, they will be deformed. ...
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The access point for load cell dashboards – ifm
Key points of maintenance of electronic crane scales, automobile weighbridges, electronic forklift scales, unique effect electronic scales, and the outer dial of Dongguan electronic weighbridge weight sensor:
The detection and analysis of problems in the application of load cells, and the common problems of the weighing appearance of automation technology have been in the end of the system software.
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Sensor installation requirements and precautions – ifm sensors
1. Device requirements:
1. Measure the shaft diameter and center height of the high-precision displacement sensor.
2. Two sets of couplings are used to connect the device with high-precision displacement sensor between the power source and the load.
3. The sensor can be connected with a rigid or elastic coupling. The sensation is more ...
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Current sensor features – ifm
1. High sensitivity. The strength of the detected signal is getting weaker and weaker, which requires a significant increase in the sensitivity of magnetic sensors. The use includes current sensors, angle sensors, gear sensors, and space environment measurement.
2、 ...
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Common faults of pressure sensors – ifm
The pressure sensor is still widely used in this world, but it is still a metal product after all, and it will fail after a long time.
1. Sealing problems of pressure transmitters
Initial pressurization, the output of the transmitter ...
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Failure analysis and definition of ifm vortex flowmeters
Vortex flowmeter series instrument because of the use of the environment is special or harsh in the field work sometimes present such and such problems, resulting in production will be affected, vortex flowmeter and orifice flowmeter and V-cone flowmeter are different, as far as the orifice flowmeter is concerned, it is the standard orifice plate and multi-parameter ...
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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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Method for measuring torque using angle sensors – ifm
It is difficult to measure torque on a rolling shaft, and there are several ways to do it. The most common method is to derive the torque from the energy required by the rolling shaft. In general, this means measuring the current of the motor that drives the rolling shaft. This is sketchy but inaccurate, as ...
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How ifm sensors determine the exact installation location
When installing an ifm sensor, the first thing to do is to confirm the orientation of the sensor and then to install it correctly. So how do we confirm the orientation of the sensor?
The ifm sensor confirms the detailed orientation of the device ...
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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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Position sensor key terms
Incremental sensors
Only the bearing change information is provided so that the practice bearing is unknown at startup. Each time the index/symbol signal is used to say the zero or zero bit of the device. Detected in the homing procedure. For the commutation of brushless motors, the motors usually have three magnetic Hall sensors, which are ...
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ifm stabilizes C-slot cylinder sensors
Easy-to-install sensor with long-service life electronic GMR unit – flush unit
This sensor can be conveniently installed in a C-slot
Fixed at the end of the housing for stable elastic stress relief
Multiple articulations ...
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The difference between a sensor module and a sensor – ifm
The first statement is that the sensor module belongs to a kind of sensor module, according to different packaging forms, the sensor module can be divided into different types such as chip BQ4010YMA-200, PCBA, shell packaging module, etc., collectively referred to as the sensor module, different types of sensor modules according to different ...
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ifm's new products have once again won the Germany Design Award
After winning the Germany Design Award last year, three ifm products were awarded the Germany Design Award 2020 this year: the MQ2000 magnetic sensor, the EVF570 wireable jack and the O2I500 barcode/QR code reader were all recognized by the jury.
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