First, the first component blocking may be the wrong way of the device, the pressure point is unreasonable, so we often emphasize that the device must be the correct device, once the installation is wrong, maybe the installation is not good, it will bury endless hidden dangers for the back. What are the primary components? Orifice plates, remote transmission measurement joints, etc.
Second, the leakage of the impulse tube may be blocked, there is residual gas in the filling pipe or residual liquid in the filling pipe, and there is sediment in the flange of the transmitter process, which constitutes a measurement dead zone, which is also one of the reasons for the formation of problems.
3. The transmitter is incorrectly wired, the power supply voltage is too high or too low, and the connection between the indicator meter head and the surface terminal is poor, which should be carefully noted.
Fourth, there is no strict accordance with the technical requirements of the device, the device mode and the on-site environment do not meet the technical requirements, or the problem of the device, the device is best handed over to professionals, so that it is convenient to prevent many problems.
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Tips and tricks for using sensors – a blessing
Tip 1 – Start with the bus stuff
As a first step, the engineer should use the method of first interfacing the sensor to constrain the ignorance through a bus thing. A bus thing connects to a personal computer (PC) and then to the sensor for I2C, SPI or other ...
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Terminology for the selection of pressure sensors – we are blessed
Pressure: The force acting vertically and evenly over a unit area. In physics, this is called "pressure".
Range: i.e. the scale of pressure. Refers to the use of sensors to measure the amount of pressure.
Medium: refers to the object to be measured. Generally steam, water, oil, acid, alkali or mixture.
Precision...
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Precautions for P+F safety barriers
First, it is necessary to pay attention to the capacitive and inductive resistance of cables and field equipment, explosion-proof is the explosion-proof system, in addition to the need for P+F safety barriers to reach the required explosion-proof level, the energy storage of cables and field equipment is also a key issue. Especially after parametric certification replaces system certification, engineering companies are especially ...
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Safety barriers are available in a variety of applications
In the process of using the safety barrier, whether it is the construction stage or the daily maintenance, repeated removal of the suture is a troublesome and simple mistake. With pluggable terminals, there is no need to repeatedly disconnect the wires. The field side terminals of the safety barrier and the system side terminals are distinguished by different colors, if there are two sets of ...
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Installation and assembly of ultrasonic sensors
Ultrasonic sensors are used for the inspection of printed circuit boards (PCBs), where ultrasonic sensors are used to inspect printed circuit boards. So what factors need to be taken into account when installing and assembling ultrasonic sensors?
Ultrasonic ...
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Fault detection of load cells and corresponding replacement – we are blessed
1. Fault judgment
When the electronic scale presents the following phenomena, it is necessary to see whether the load cell presents a problem.
1) If the electronic scale does not show zero, the display screen continues to shine or show zero in the future, and the weighing number does not appear when weighing.
2) Electric ...
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Cable protection systems for harsh conditions
In addition to getting used to mechanical shock, pressure, and tensile strain, sensor cables are often exposed to chemical environments. While traditional sensor cable planning is often not sufficient to meet these requirements, the new cable maintenance system has been developed with this intention in mind, guaranteeing ...
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Problems with differential pressure sensors – Blessing
1. Temperature
Excessive temperature is one of the common causes of differential pressure sensor failure, as there are many components of the differential pressure sensor that can only function properly within the specified temperature scale. During installation, if the sensor is exposed to temperatures beyond these temperature scales, it may be exposed to ...
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The difference between NPN type and PNP type in sensor switches – we are blessed
There are two common types of sensor switches: NPN type and PNP type, so what are the differences and differences between them?
For example, there is a switch VT in the NPN open collector output circuit, and the output OUT is through the switch ...
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How to identify the number of pulse positions in an encoder – we are blessed
The pulse encoder is a rotary encoder that uses the rotation pulse for signal output, and the main characteristics are the standard shape and diversified shape structure; The internal coding is stable, the signal output qiang, and the pulse value and positioning value are clear. Therefore, when choosing this type of punching encoder, ...
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Precautions during the installation of safety barriers
1. The safety barrier should be installed in a safe place, and the environmental conditions meet the requirements of the "application conditions" in the "Safety Gate Selection Sample".
2. The connecting wires of the intrinsically safe end (blue end) and non-intrinsically safe end circuits of the barrier safety barrier should be laid separately in the wiring slot.
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The new WIS2 wireless sensing system is available
The use of robots that can exchange things requires high-speed movement and fast rotation. Conventional solutions for energy chains or slip rings lack the necessary flexibility with regard to this automation technology. Our wireless sensing system (WIS) enables non-contact in places where a fixed connection is not possible.
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The F99 series inclination sensor helps "China speed"
During the epidemic, Huoshenshan Hospital, which rose from the ground within 10 days, made foreign netizens exclaim miracles. This is a life-and-death contest against the epidemic, and it is also a speed that Chinese are proud of. Behind the "China speed", advanced construction equipment is indispensable, in which the project ...
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Proximity sensor requirements for CNC machines – BEBB
Because of its high precision, high speed and reliability, CNC machine tools have been rapidly spread throughout the enterprise in the upgrading of manufacturing technology and equipment. CNC machine tool is an automatic machine tool equipped with a program control system, which makes the machine tool move and process parts according to the programmed program. It...
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The correct way to test the output of the sensor – the sensor
1. Test for NPN output sensor
The NPN sensor output, also known as OC gate output, is based on the principle of open collector output of a transistor.
The principle of NPN type OC gate output is whether the output of the NPN transistor and GND are short-circuited. When the control is active, the transistor is turned on, the output and the GND ...
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Precautions for installation during the use of encoders
First of all, the following points should be paid attention to when wiring the encoder:
1. It is necessary to use a metal cable bracket and ensure that the bracket connection is connected to the ground;
2. The cable should be arranged as close to the metal parts as possible, such as control cabinet panels, beams and metal rails, etc.
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Precautions for the use of linear displacement sensors - double blessing
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 is easy to damage the sensor.
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Benefits of our industrial sensors
The R2 and R3 series of photoelectric sensors are impressive products that characterize a very small housing plan. Robust R2/R3 miniature photoelectric sensors – smaller than a matchbox, space-saving miniature housing photoelectric sensors R2/R3 series ...
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Characteristics and classification of miniature sensors – BEB
Simple fundamental characteristics and classification of miniature sensors
(1) As far as a single sensor is concerned, a miniature sensor refers to a small sensor from micrometer to millimeter and even nanometer, mainly using precision machining, microelectronics and microelectromechanical system skills to reduce the size of the sensor.
(2) ...
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Classification and principle of displacement sensors
According to the principle of operation:
Potentiometer-type displacement sensor
It converts the mechanical displacement through the potentiometer element into a resistive or voltage output that is linearly or arbitrarily linked to it. Generally, linear potentiometers and round potentiometers can be used as linear and angular displacement sensors, respectively. ...
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