In-Depth Analysis of Technical Parameters of Diffused Silicon Pressure Transmitters

The core performance of industrial-grade pressure transmitters depends on the technical specifications of diffused silicon sensors. Taking the DG1300-PJ-1-CJ/GK/GZ series as an example, it adopts the single-crystal silicon piezoresistive effect principle, forming a Wheatstone bridge through ion implantation technology, and achieves high accuracy of ±0.1%FS within the range of -40~125℃. By comparing the dimensional drawing of MPM489E22B1C2G, it can be seen that the combined structure of the 316L stainless steel isolation diaphragm and ceramic base enables the product to maintain a ±0.25% span error even under 6.89MPa static pressure. It is worth noting that Domestic Capacitive Pressure Transmitter NPT1151 Absolute Pressure Sensor Differential Pressure Transmitter adopts digital compensation technology, and its 40:1 turndown ratio and ±0.05% accuracy have surpassed traditional diffused silicon products, making it particularly suitable for high-pressure scenarios such as electric power and petrochemicals.

Key Performance Comparison Table

Practical Guide to Installation and Maintenance

According to the installation instructions for BP-H and JM-2010-5M, the threaded connection of the diffused silicon pressure transmitter needs to be wrapped with sealing tape for 2.5 turns, with the torque controlled within the range of 15-20N·m. The calibration process of FST800-211P341I-10B shows that cyclic calibration at the three pressure points of 0%, 50%, and 100% can ensure a linearity of ±0.075%. For the maintenance of MBS4701-060G5811, it is recommended to check the silicone oil filling status every 6 months. When an abnormal alarm control function is found in the CLG-D model, first check whether the 24V power supply fluctuation exceeds ±1%.

Typical Troubleshooting Solutions

• Signal drift: Check whether there is stress in the process fittings, and retighten the 1/4-18NPT threaded connector
• Unstable output: Confirm that the load resistance complies with the calculation formula Rmax=(E-10.5)/0.0236
• Display overrange: Use a HART communicator to check whether the remote transmission signal of PX-BACHX is being interfered with
• Diaphragm damage: Replace the isolation diaphragm assembly made of Hastelloy C material

Selection Strategy for Industrial Application Scenarios

In the high-temperature environment of the metallurgical industry, the fluororubber seal of KYB-C1 can withstand short-term impact at 200℃, and its 54mm flange center distance achieves a 98% matching rate with standard pipelines. In the petrochemical field, it is recommended to select models such as CR-YM2 with intrinsic safety certification. Its two-wire 4-20mA output superimposed with the HART protocol is perfectly compatible with DCS systems. For occasions requiring remote monitoring, the non-volatile memory of Domestic Capacitive Pressure Transmitter NPT1151 can store 10 sets of calibration data, greatly reducing the frequency of on-site maintenance.

Why Choose Our Solution

As a high-tech enterprise in Xixian New Area, we provide pressure transmitters that have all passed IEC801 electromagnetic radiation certification, and all diffused silicon sensors come with an ultra-long three-year warranty. For the DG1300 series, we specially provide free on-site installation guidance, and can also customize alarm threshold setting services for models such as CLG-D according to user requirements. Our engineering team has 20 years of experience in flow control equipment and can provide localized replacement solutions for imported models such as MPM489E22B1C2G, helping customers reduce procurement costs by 30%.