Precautions for use of Rosemount differential pressure transmitters

Create Date: 2024-8-30 12:03:23|Source: Rosemount/Rosemount

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 plane mounted differential pressure transmitter in use The principle is the same, but the installation method is different, we should avoid some simple and easy to wrong operation methods in daily use.

Precautions for use of Rosemount differential pressure transmitters

1. Do not touch the barrier diaphragm with your hands, or do not touch the reasonable diaphragm with a hard object, which will cause the barrier diaphragm to be damaged and the sensor to be broken.

2. If the waist of the differential pressure transmitter is loose, do not twist it hard, there is an Allen screw on the side of the waist, use a wrench to twist it, if you twist the waist by hand, the cable in the sensor will be broken, so that the sensor will be broken.

3. Rosemount differential pressure transmitter can also measure pressure, such as 3051CD.3051CG gauge pressure transmitter, differential pressure transmitter has 2 holes, plugging one hole can measure pressure.

4. The power supply should not be applied to the differential transmitter transmitter with a voltage higher than 36V, which will cause damage to the transmitter.

5. When measuring steam or other high-temperature medium, the temperature should not exceed the limit temperature of the transmitter by 85 degrees, and it is necessary to use heat dissipation devices, such as condensation bends, to cool down if it is higher than the limit temperature of the transmitter.

6. When measuring steam or other high-temperature media, heat pipes should be used to connect the transmitter and pipes together, and the pressure on the pipes should be transmitted to the transformer. When the measured medium is water vapor, an appropriate amount of water should be injected into the heat pipe to prevent the overheated steam from directly touching the transmitter and damaging the sensor.

7. The temperature of the measured medium should not be too low, if it is too low to freeze, it will damage the barrier diaphragm of the sensor element, resulting in damage to the transmitter, if necessary, the temperature of the transmitter should be protected to prevent freezing.

8. In the process of pressure transmission, the following points should be noted,

a. Do not leak air at the connection between the Rosemount differential pressure transmitter and the heat pipe;

b. Before starting to use, if the valve is closed, the valve should be opened very carefully, slowly and gently to avoid direct impact of the measured medium on the sensor diaphragm, thereby damaging the sensor diaphragm.

c. It is necessary to keep the pipeline unblocked, the sediment in the pipeline will pop out, and damage the sensor diaphragm, if the barrier diaphragm shows scratches, the diaphragm is damaged, and the pressure value will be inaccurate and jump.

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