Features and performance of Rosemount pressure sensors
1. Diffusion silicon pressure sensor
The working principle of the diffusion silicon pressure sensor is that the pressure of the measured medium directly acts on the diaphragm of the sensor (stainless steel or ceramic), so that the diaphragm produces a micro-displacement proportional to the pressure of the medium, so that the resistance value of the sensor changes, and the electronic circuit detects this change, and converts and outputs a standard measurement signal corresponding to this pressure.
2. Strain gauge (mechanical) pressure sensor
There are many types of force sensors, such as resistance strain gauge pressure sensors, high-temperature pressure sensors, semiconductor high-temperature pressure transmitter variable pressure sensors, piezoresistive pressure sensors, inductive pressure sensors, capacitive pressure sensors, resonant pressure sensors and capacitive accelerometers. However, the most widely used are piezoresistive pressure sensors, which have a very low price, high accuracy and good linearity.
3. Ceramic pressure sensor
The corrosion-resistant ceramic pressure sensor has no liquid transmission, the pressure directly acts on the front surface of the ceramic diaphragm, so that the diaphragm produces a slight deformation, the thick film resistance is printed on the back of the ceramic diaphragm, connected into a Wheatstone bridge (closed bridge), due to the piezoresistive effect of the varistor, the bridge produces a voltage signal that is highly linear proportional to the pressure and proportional to the excitation voltage of the flameproof temperature transmitter, and the standard signal is calibrated to 2.0/3.0/3.3mV/V according to the different pressure ranges, etc. It can be compatible with strain gauge sensors. Through laser calibration, the sensor has high temperature stability and time stability, the sensor comes with temperature compensation of 0-70°C, and can be in direct contact with most media.
|
More on that
|
Fault Judgment in Rosemount Differential Pressure Transmitter Applications
Fault judgment and analysis in the application
In the process of measuring the transmitter, there are often some problems, and the timely analysis and treatment of faults are crucial for the ongoing production According to the experience of daily maintenance, some of the analysis methods and analysis methods are summarized and summarized.
|
|
What causes inaccurate measurements in Rosemount pressure transmitters
Rosemount Pressure Transmitter Inaccurate Measurement Causes:
1. Whether the power supply of the Rosemount pressure transmitter is normal, if it is less than 12VDC, you should check whether there is a large load in the circuit, and the input impedance of the transmitter load should be in line with RL≤ (transmitter supply voltage -12V)/(0.02A...
|
|
How to choose the Rosemount 3051DP differential pressure transmitter
1.3051D transmitter is a coplanar pressure transmitter, which can measure the pressure or the side differential pressure, and there are two options P is the differential pressure measurement and G is the gauge pressure.
2. To understand the range used in the field, select the corresponding code according to the range, a total of 5 options: the lowest - 6.216KPA and the maximum 13789.54KPA.
...
|
|
Rosemount differential pressure transmitter selection considerations
The following points should be considered in the selection of differential pressure transmitters:
1. Measure the scale, the accuracy of the demand and the measurement function;
2. Measure the environment of the outer surface, such as the industrial environment of petrochemical industry, the existence of flammable, toxic and explosive risk atmosphere, and the high ambient temperature;
3 tested ...
|
|
The Rosemount 3051 transmitter resets the range
There are three ways to reset the range of the 3051 transmitter:
1. Use only the communicator to reset the range
HART communicator shortcut keys 4 or 5. The simplest and most common way to reset the range using only the communicator is to change the values that mimic points 4 and 20 mA independently, without the need for pressure inputs.
|
|
Rosemount transmitter pressure gauges are widely used
Rosemount transmitters are used in industrial process control and technical measurement processes, because the elastic and sensitive elements of mechanical pressure gauges have high mechanical strength and easy production, so that mechanical pressure gauges are more and more widely used.
Rosemont ...
|
|
Features of the Rosemount Transmitter 3051S Series High Precision Transmitters:
Features of the Rosemount Transmitter 3051S Series High Precision Transmitters:
Advanced diagnosis
Advanced diagnosis provides ongoing process monitoring to ensure the integrity and security of the process environment. The Statistical Process Monitoring (SPM) skill alerts you to deal with issues and anomalies. This comprehensive ...
|
|
Three types of Rosemount 3051 transmitters
There are many types of Rosemount 3051 transmitters, and there are many types, today we will tell you about the most basic 3 types of transmitters of Rosemount 3051 transmitters, absolute pressure, gauge pressure, and differential pressure.
3051CA Absolute Pressure Transmitter Rosemount Reference Pressure When the Pressure is Vacuum, the ...
|
|
Installation requirements for Rosemount transmitter impulse tubing
The effect of the pressure impulse pipe is to transmit the pressure of the process medium to the transmitter to measure, in order to obtain accurate measurement values for the process measurement. There are many details that need to be paid attention to at the time of the installation, and the following summarizes the Luo ...
|
|
The installation environment affects the use of Rosemount transmitters
If you want to get better measurement results in practical applications, you need to pay attention to the following environmental issues when installing:
1. The Rosemount transmitter pressure impulse pipe should be arranged in a place where the temperature fluctuation is small, and the buffer tube (disk) should be connected when measuring steam or other low-temperature medium.
|
|
What are the features of the Rosemount 644 temperature transmitter?
1. It can greatly reduce the cost of wire and labor.
2. The advanced diagnosis function can reduce the number of on-site repairs.
3. Order a complete temperature transmitter and temperature sensing assembly to simplify setup, specifications, and ordering, and then reduce costs.
4. Adopt HART communication protocol. ...
|
|
What factors affect the performance of the Rosemount 3051 differential pressure transmitter?
1. Effect of temperature
Rosemount differential pressure transmitters will vary greatly in process temperature, ambient temperature, and will certainly differ from the reference conditions when the transmitter is tested, which also means that the functionality will be different from the reference accuracy presented. Temperature on differential pressure transmitters ...
|
|
A method for verifying a current loop signal for a Rosemount pressure transmitter
The Rosemount pressure transmitter uses a 4-20mA signal, which is the conversion value of the output generated by the pressure transmitter. The output of the transmitter is detected according to the HART protocol, however, it is converted to a proportional current so that it can be visualized as a reading. Normally, at zero level output, the transmitter displays 4mA ...
|
|
How to maintain the Rosemount 3051 pressure transmitter
United States rosemount 3051 pressure transmitter maintenance is mainly divided into two points:
1. In the whole process of accurate measurement, some common faults often occur in the Rosemount pressure transmitter, and the immediate judgment and analysis and resolution of common faults are especially important for the production and manufacturing that has been carried out.
|
|
Factors to consider when sizing the Rosemount 3051 pressure transmitter
Pressure transmitter selection
According to different application scenarios and needs, we should show practicality and economy in the selection of Rosemount pressure transmitters, and can select technical parameters from the requirements of pressure type, measuring scale, measurement medium, accuracy, applicable temperature scale, etc.
...
|
|
What to look out for before using a Rosemount transmitter
Rosemount transmitters can be used in many different fields, and different people face different situations and problems when using transmitters. Then the editor will introduce these problems to us.
How to clear the Rosemount transmitter ...
|
|
How the Rosemount 3051TG pressure transmitter works
The Rosemount 3051TG pressure transmitter is one of the most commonly used products in the Rosemount 3051 pressure transmitter that has been tested in the power industry for 40 years. Planning with high reliability, transient stability, and easy protection. Rosemount pressure transmitters are designed from planning to installation, from protection to operation.
|
|
Rosemount X-Well Wins Best Product Award in Sensor Category
Shanghai, China (November 3, 2016) – Emerson's Rosemount X-Well Technology temperature measurement components won the Best of the Best Product Award in the Sensors category at the highly anticipated CONTROL ENGINEERING China 2016 annual competition.
...
|
|
How to solve the problem of Rosemount differential pressure transmitter migration failure
The migration of differential pressure transmitters is a form of application, which refers to the process of artificially moving the measuring point of a differential pressure transmitter from the zero point to the required value. The migration of differential pressure transmitters includes two major contents: positive migration and negative migration.
|
|
How to care for your Rosemount pressure transmitter after use
Eight ways to use Rosemount pressure transmitters:
1. When measuring steam or other high-temperature media, it is necessary to connect a condenser such as a buffer tube (coil), and the working temperature of the Rosemount transmitter should not exceed the limit.
2. When wiring, pass the cable through the waterproof joint or wrap it around.
|
|