Core Value and Selection Logic of Diffused Silicon Liquid and Gas Pressure Sensors

As a key measuring device in the industrial field，the MBS-MBS1900 pressure transmitter’s diffused silicon liquid and gas sensor selection directly affects system stability。This article provides a comprehensive analysis of the advantages and disadvantages of mainstream models such as DG1300-BZ and BP-A，compares the performance parameters of the M5156 and MBS33M series，and helps procurement decision-makers choose the most suitable sensor solution。

In industrial process control，diffused silicon technology has become the preferred solution for pressure measurement due to its excellent sensitivity and stability。Taking the domestic high-temperature pressure transmitter YHT4 diffused silicon pressure sensor as an example，it uses 316 stainless steel material，withstands a medium temperature of -30～+85℃，and has a comprehensive error as low as class 0.25，making it perfectly suitable for demanding scenarios such as petrochemical and electric power applications。The core value of this type of product lies in converting complex pressure signals into standard electrical signals while maintaining exceptional stability of ±0.1%FS/year。

Technical Comparison of Mainstream Models：From DG1300 to the MBS33M Series

When evaluating the DG1300-BZ-A-0.4/CJ/AE/FZ/W pressure transmitter，its advantage lies in its three-wire 0～10VDC output，which is suitable for long-distance transmission；although the BP-A model is more price-competitive，it is slightly insufficient in terms of the temperature drift specification（±0.08%FS/℃）。With a response speed of ≤5 milliseconds，the M5156-000005-016BG performs outstandingly in dynamic measurement scenarios such as locomotive braking systems。

Analysis of the Three Major Technical Advantages of Diffused Silicon Sensors

1. Material Stability：For models using 316 stainless steel as the medium-contact material，such as MBS33M-060G1655，their corrosion resistance is improved by 30% compared with 304 stainless steel，making them especially suitable for the chemical industry。2. Temperature Adaptability：Taking YHT4 as an example，its medium temperature range of -30～+85℃，combined with a temperature drift coefficient of ≤±0.05％FS／℃，far exceeds that of ceramic piezoresistive sensors。3. Signal Accuracy：Through laser calibration technology，the M5156 series controls nonlinearity error within 0.1%FS，which is difficult for strain gauge sensors to achieve。

Five Key Indicators for Procurement Decisions

When comparing different models of the MBS-MBS1900 pressure transmitter，contract executors should focus on：1）range matching（for example，064G-G6532 is suitable for 0～10MPa low-pressure scenarios）；2）overload capacity（2 times full scale is the industry benchmark）；3）output signal type（two-wire 4～20mA reduces wiring costs）；4）medium compatibility（the sealing material must be confirmed）；5）certification standards（such as explosion-proof requirements）。Special reminder：Although the DH-HXM model is inexpensive，its 95%RH humidity limit may not be suitable for humid environments in southern regions。

Typical Problem Solutions

Question 1：How to choose an economical solution？ The MBS33M-060G3121 pressure transmitter maintains class 0.5 accuracy while reducing costs through a simplified housing process，making it suitable for building automation projects with limited budgets。Question 2：How to handle high-temperature operating conditions？ It is recommended to select specially designed high-temperature models such as YHT4，which use a special heat dissipation structure and can still ensure ±0.1% stability in an 85℃ environment。Question 3：What if explosion-proof certification is required？ The MBS33M-060G3129 has passed intrinsic safety explosion-proof certification and can be safely used in flammable and explosive locations。

In-Depth Matching for Industry Application Scenarios

During power plant operation inspections，the M5156-000005-016BG pressure transmitter can accurately capture pressure fluctuations thanks to its response speed of ≤5 milliseconds；constant-pressure water supply systems are more suitable for the BP-A model，whose ±20% adjustable range feature makes it convenient to match different head requirements。It is worth noting that the domestic high-temperature pressure transmitter YHT4 performs particularly well in the metallurgical industry，and its 316 stainless steel structure can resist corrosion from molten metal vapor。

Maintenance and Service Life Extension Tips

Regularly check the sealing performance of pressure connection threads（such as M20×1.5）；avoid sudden changes in medium temperature（exceeding 10℃/minute）；for the MBS33M series，zero-point calibration is recommended every 2 years。Data shows that diffused silicon sensors used properly can have an average service life of more than 8 years，far exceeding the 5-year benchmark for strain gauge sensors。

Summary and Procurement Recommendations

When selecting diffused silicon liquid and gas pressure sensors，the measured medium，environmental conditions，accuracy requirements，and budget constraints must be comprehensively considered。For demanding high-temperature and high-pressure scenarios，professional models such as YHT4 are recommended as the first choice；for conventional operating conditions，the more cost-effective MBS33M-060G312 series can be selected。As a professional sensor manufacturer，Xi’an Shenghongchuang can provide full-process services from model selection consultation to installation and commissioning。

Contact our technical team now to obtain a sensor selection solution tailored to your specific operating conditions and the latest quotation list。Our engineering team with ten years of industry experience provides you with precision measurement solutions compliant with ISO9001 standards。