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 winding pipe and tighten the sealing nut tightly to prevent rainwater from leaking into the Rosemount transmitter housing through the cable.
3. When freezing occurs in winter, the Rosemount transmitter installed outdoors must adopt anti-freezing methods to prevent the liquid in the impulse port from expanding due to icing, resulting in sensor loss.
4. When measuring the gas pressure, the pressure port should be opened at the top of the process pipeline, and the Rosemount transmitter should also be installed in the upper part of the process pipeline, so that the accumulated liquid can be easily injected into the process pipeline.
5. Prevent residues from accumulating in the catheter and the Rosemount transmitter from coming into contact with corrosive or overheated media.
6. When measuring the liquid pressure, the device position of the Rosemount transmitter should prevent the impact of the liquid (water hammer phenomenon), so as to avoid damage to the sensor due to overpressure.
7. The impulse pipe should be installed in a place with small temperature fluctuations.
8. When measuring the liquid pressure, the pressure port should be opened on the side of the process pipeline to prevent the accumulation of slag.
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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 ...
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Rosemount transmitter signal line grounding method
If the Rosemount transmitter does not have alarms and safety adjustment options installed, the transmitter will typically operate according to the default alarm settings, i.e., the alarm condition is set to "high" and the safety is set to "off". Then proceed as follows:
1. ...
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Factors to consider when installing a Rosemount 644 temperature transmitter
Rosemount 644 temperature transmitter must be considered when installing the factors, only we solve these unfavorable factors, in the installation of the Rosemount temperature transmitter will not encounter some unnecessary things
routine
Electrical temperatures such as RTDs and thermocouples ...
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The Rosemount 3051 transmitter meter shows what the cause of the FAIL fault is
1. Look at whether the diaphragm is damaged, if not, after removing it, press it with chopsticks after imitating the power on in the room to see if there is a pressure display, if there is a display change, you can only disassemble another one, see if the transmitter module is broken, because the transmitter modules are integrated ...
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Features and performance of Rosemount pressure sensors
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 acts directly 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, ...
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How the Rosemount 3051 pressure transmitter works
The 3051 pressure transmitter is used to measure the level, density, and pressure of liquids, gases, or vapors, and then convert the pressure signal into a 4-20mADC signal output. There are mainly capacitive pressure transmitters and diffusion silicon pressure transmitters, ceramic pressure transmitters, strain gauge pressure transmitters, etc.
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The meaning of the Rosemount transmitter fault code indication
Press Limit: The process variable read out by the transmitter is not within the transmitter range, which means that the range of the set volume exceeds the range of the transmitter cassette, and the solution is to replace the transmitter cassette.
Temp Limit: ...
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Problems encountered during the use of the Rosemount 3051 transmitter
1. What kind of output signal does the Rosemount transmitter need to get: mV, V, mA and frequency output digital output, and the choice of what kind of output depends on a variety of factors, including the separation between the Rosemount transmitter and the system controller or display, whether there is "noise" or other electronic interference signals.
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Rosemount 3051S direct-attach pressure transmitter
The Rosemount 3051S direct-attach pressure transmitter is a professional-class solution for optimized functionality. This scalable SuperModule™ platform reduces process variation and reduces protection, making it particularly useful for gauge and absolute pressure measurement in Rosemont transmitters. Should...
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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 ...
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The difference between a Rosemount transmitter and a Siemens transmitter
The difference between Siemens' transmitter and Rosemount's transmitter: Siemens' transmitter is a piezoresistive pressure transmitter, and Rosemount's transmitter is a capacitive pressure transmitter.
The transmitter converts the output signal of the sensor into a signal that can be recognized by the controller.
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The Rosemount 3051 transmitter cannot be powered on
The Rosemount 3051 transmitter will not be powered on or may damage the transmitter after it is placed in the tripping device. When our technicians have understood these problems, they have analyzed and made corresponding countermeasures from three aspects, as follows:
Rosemont ...
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Summary of problems in the use of the Rosemount 3051 transmitter
1. What kind of output signal does the Rosemount transmitter need to obtain: mV, V, mA and frequency output digital output, and the choice of what kind of output depends on a variety of factors, including the separation between the Rosemount transmitter and the system controller or display, whether there is "noise" or other electronic interference signals.
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Rosemount transmitters are affected by the angle of inclination of the installation
The actual working performance of the Rosemount transmitter will be affected by the angle of inclination, ambient temperature, static pressure and fluid temperature of the device.
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Pipe diameter requirements for the installation of the Rosemount 8800D vortex flowmeter
1. The upstream and downstream pipe diameter of the flowmeter on the installation point must be installed in accordance with the standard flowmeter caliber, otherwise the measurement accuracy will be affected.
2. If there is a tapering pipe in the upstream of the flowmeter installation point, there should be a straight pipe section of equal diameter of not less than 15D (D is the diameter of the pipe) in the upstream of the flowmeter, and there should be ...
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The Rosemount 3051 transmitter has its own advantages
1. The five-year stable soil is 0.125%, which can greatly reduce the cost of verification and protection.
2. Faster dynamic response, which can reduce the variability of the process.
3. The co-plane planning can realize a comprehensive measurement scheme.
4. Compact and lightweight coplanar planning with the best function ...
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Types of Rosemount transmitters
The intelligent Rosemount transmitter is also equipped with a hand-held terminal (external data setter or grouper) for setting the transmitter parameters, such as setting the type of transmitter, range adjustment, zero point adjustment, input signal selection, output signal selection, engineering unit selection and damping time constant.
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Problems to be noted when calibrating Rosemount transmitters
1. After adjusting the zero point, use the standard pressure source to apply pressure slowly, and increase the pressure to the maximum scale, and the output value is about 20mA.
2. The verification regulations require that the two high and low pressure chambers of H and L are connected to the outside world, and observe that the zero position is not in the direction of 4mA.
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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 ...
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How to solve the problem that the Rosemount transmitter cannot be powered on
Analysis and countermeasures when the Rosemount transmitter cannot be powered on.
1. There is something wrong with the leakage circuit breaker itself
When the jump bar indicator and power indicator are not on, it is necessary to check whether the fuse is blown; Whether transformers, voltage regulator manifolds, and power switches ...
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