In industrial automation control systems, the selection of the DG1300-BZ-B-2-0.2-CJ-AA diffused silicon Hesseman pressure sensor directly affects measurement accuracy and system stability. This article addresses the core needs of technical evaluators and analyzes how to select a genuine diffused silicon pressure transmitter from 5 key indicators, including range, accuracy class, output signal, media compatibility, and environmental adaptability, helping you avoid common application misunderstandings of models such as PMI009-732-350GB.

I. Technical Definition and Industry Applications of Diffused Silicon Hesseman Pressure Sensors

As a core component in the field of industrial measurement, the working principle of the diffused silicon Hesseman pressure sensor is based on the semiconductor piezoresistive effect. When pressure acts on the sensing element, the resistivity of the silicon crystal changes and is converted into an electrical signal output through a Wheatstone bridge. Compared with traditional capacitive or ceramic piezoresistive sensors, models such as DG1300-BZ-B-2-0.2-CJ-AA offer higher sensitivity（typical value 0.1%FS）and temperature stability（±0.5% compensation accuracy within the range of -20℃~85℃）. In flow control scenarios such as petrochemicals, water treatment, and HVAC systems, this technology can accurately monitor pipeline pressure fluctuations and provide raw data support for transmitters such as the GT-V and MBS1900 series.

II. In-Depth Analysis of 5 Key Selection Indicators

1. Range and Overload Capacity

Technical evaluators need to select the range according to actual working conditions, and it is recommended that the working pressure be within 30%-80% of the range. For example, the PT124B-210-100MPa-M20 model covers 100MPa high-pressure measurement, while the PB-CNM1 is more suitable for 0-1kPa low-pressure scenarios. Special attention should be paid to burst pressure（usually 3-5 times the range）and cycle life（diffused silicon sensors generally exceed 1 million cycles）, which is particularly important for equipment such as the PMI009-732-350GB operating over the long term.

2. Accuracy Class and Long-Term Stability

The accuracy of diffused silicon sensors is usually marked as ±0.25%FS or ±0.5%FS, but in practical applications the following should also be considered：

• Non-linearity error：DG1300-BZ-B-2-0.2-CJ-AA nominally ≤±0.1%
• Hysteresis error：Hesseman technology can control it within ±0.05%
• Temperature impact：MBS1900-064G6575 has an additional error of ±0.3% within the range of -10℃~60℃

3. Output Signal and Protocol Compatibility

III. Common Industry Issues and Solutions

Media Compatibility Pitfalls

A water treatment plant once used a standard GT-V sensor to measure chlorine gas media, resulting in diaphragm corrosion failure. We recommend：corrosive media must use a 316L stainless steel isolation diaphragm, and acidic environments require an additional PTFE coating, which is consistent with the design concept of the PT124B-210.

Misunderstandings About Environmental Adaptability

The MBS1900 series is prone to signal drift in vibration environments, and solutions include：

1. Selecting a structure filled with damping oil
2. Avoiding straight pipe sections near pumps and valves for the installation position
3. Giving priority to products with IP68 protection ratings such as the PB-CNM1

IV. Why Choose Shenghongchuang Instruments

As a national high-tech enterprise in Xixian New Area, we provide：

• All product lines are CE and RoHS certified
• Three-year warranty for models such as DG1300-BZ-B-2-0.2-CJ-AA
• Free comparative test reports for AT-131 and PMI009
• Professional technical team support for model selection（including special working condition solutions such as GT-V）

Call 029-XXXXXXX now to obtain the technical white paper for products such as MBS1900-064G6575, or visit www.xxxxx.com to view the 3D installation demonstration video of the PT124B-210.