Key Features of the Rosemount 248 Temperature Transmitter:

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 ...

Rosemount differential pressure transmitter in daily use we should pay attention to something, take Rosemount transmitter 3051DP differential pressure transmitter as an example, Rosemount differential pressure transmitter has a coplanar differential pressure transmitter and a flat mounted differential pressure transmitter in use The principle is the same, but the installation ...

1. The pressure of the 3051 transmitter does not go up to the output of the transmitter, the output of the pressurized transmitter does not change, and the output of the pressure transmitter changes suddenly, and the zero position of the pressure relief transmitter cannot be returned. In this case, you should see if the pressure interface is leaking or blocked, and after looking at the wiring method and power supply, ...

The intelligent Rosemount transmitter is composed of a sensor and a microprocessor (microcomputer), which makes full use of the computing and storage capabilities of the microprocessor to process the data of the sensor, including the conditioning of the measurement signal (such as filtering, amplification, A/D conversion, etc.), data display, etc.

The Rosemount pressure transmitter measurement principle progresses as follows: 1. The pressure transmitter transmits the pressure on the high and low pressure sides to the movable (sensing) diaphragm in the center of the sensor through silicone oil. 2. The movable diaphragm undergoes a slight displacement under the effect of differential pressure, so that the movable (sensing) membrane ...

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 ...

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.

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.

When a problem arises in the design of Rosemount thermowells, it is necessary to analyze the cause of its failure, and then go further and propose solutions. In some less complicated cases, it may be necessary to make a small change, such as adding one millimeter without changing the predetermined measurement orientation ...

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 ...

Features of the Rosemount 8732E Electromagnetic Flowmeter 1. The measurement is not affected by the changes in fluid density, viscosity, temperature, pressure and conductivity. 2. There are no blocking moving parts in the measuring pipe, no pressure loss, and the requirements for the straight pipe section are low. It has unique adaptability to slurry measurement. ...

1. The working principle of Rosemount pressure transmitter When the Rosemount pressure transmitter operates, the process pressure is transferred to the filling fluid by the isolation diaphragm and filling fluid on the high and low pressure sides, which in turn transfers the pressure to the sensing diaphragm in the center of the sensor. The sensing diaphragm is a tensioned ...

1. The impulse tube is faulty There are two simplest problems with the pressure duct of the Rosemount 3051 transmitter, which is blockage and leakage of the pressure duct. Once this problem is presented, the most obvious manifestation is that the leakage surface index of the impulse pipe will be abnormal.

Rosemount transmitters must be installed in a constant temperature environment, which is also determined by the characteristics of the flange transmitter. Because the measured medium of ordinary transmitters generally enters the transmitter measurement chamber through the impulse tube. If the measurement is a viscous liquid medium, it will be easier to form a conductive ...

In 2018, NAMUR passed the technical certification, and the Rosmont 8700 series electromagnetic flowmeters were finally certified by NAMUR, allowing automation products to better enter the European chemical market The Germany Committee for Measurement and Control Standards "designates NAMUR as a standard, which is based on industrial ...

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 ...

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.

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 ...

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.

Rosemount transmitter selection requires a good transmitter before use, so its selection is very important 1. According to the pressure interface mode Generally, threaded connection is the standard interface method. 2. According to the required accuracy level Measurement error of the transmitter ...