How to identify the authenticity of Rosemount 3051 pressure transmitters.

In recent days, the technical editor of Shaanxi Huibo Electromechanical has received many inquiries from users about how to distinguish the authenticity of Rosemount pressure transmitters. I believe many users are confused by the various types of Rosemount pressure transmitters on the market. Therefore, today the technical editor of Shaanxi Huibo Electromechanical will take the Rosemount 3051 pressure transmitter as an example to provide methods for identifying the authenticity of Rosemount pressure transmitters. I hope this will serve as a reference for users when purchasing Rosemount pressure transmitters in the future, avoiding unnecessary losses.
　　Methods to identify the authenticity of the Rosemount 3051 pressure transmitter:
1. Visual method: On the nameplate of the pressure transmitter, you can find the production serial number. We can check the production date and end-user information of the product through Rosemount sales personnel or the quality department of the Rosemount factory, allowing us to verify the authenticity of the product.

2. Comparison method of genuine and counterfeit products:
Compare the sample of the pressure transmitter with the genuine Rosemount product, including a comparison of the entire unit and a detailed comparison after disassembly. To facilitate understanding of the comparison, the photos in this article follow the principle that:
The genuine Rosemount product is on the left side of the photo, and the suspect product is on the right side.
Appearance differences of the 3051
As seen in Photo 1: The surface of the genuine Rosemount product is smooth and well-finished, while the suspect product has a rough and dull surface.
Structural differences of the 3051
As shown in Photo 1, the flange of the genuine Rosemount product uses a co-planar design, while the suspect product uses a dual-flange design similar to the 1151 model.
Nameplate differences of the 3051

Photo 2 shows the nameplate of the genuine Rosemount product, while Photo 3 shows the nameplate of the suspect product; both nameplates are marked with the Rosemount trademark.
Suspected counterfeit Rosemount pressure transmitter
Dial differences of the 3051
Suspected counterfeit product
Rosemount pressure transmitter
Photo 4 shows the differences in the dials.

Wiring terminal side differences of the 3051
After disassembling the wiring terminal side, the following differences can be observed:
1) The difference in color clearly shows that the inner sandblasting treatment is different.
2) The instruction labels are different.
3) The terminal blocks are different.

Wiring side differences of the 3051 transmitter
After disassembling the dial, further differences on the wiring side of the transmitter can be seen, as shown in Photo 6.

3. Handheld device inspection method: Users who frequently use pressure transmitters generally have a 475 handheld device. We can directly use the Rosemount 475 handheld device to check if the functions and models correspond.

Common images of the 475 handheld device
4. If you don't have a handheld device, there's no need to worry. Rosemount products have anti-counterfeiting verification codes that can be checked on their official website, or you can call to verify. However, a simpler method is to pay attention to anti-counterfeiting from the purchasing stage.
Generally speaking, the domestic Rosemount 3051 pressure transmitters are mainly produced by Beijing Far East Rosemount Co., Ltd. Of course, this may require more experience and effort to understand industry information.
The above content is all about 'how to identify the authenticity of the Rosemount 3051 pressure transmitter.' I hope it serves as a reference for everyone in identifying the Rosemount 3051 pressure transmitter in the future. If friends really don't have the energy to do these things, you can directly contact our sales personnel at Shaanxi Huibo Electromechanical (029-84516813), and we will be happy to provide you with some industry experience.