Actual Measurement Analysis of DG1300-BZ-A-2-1 Pressure Transmitter

How does the DG1300-BZ-A-2-1 pressure transmitter, a diffused silicon liquid and gas pressure sensor, perform in practical applications? This article will conduct a field test analysis from the perspectives of measurement accuracy, stability, and ease of installation to help you understand the advantages of this similar product, the PT124B-212-5MPa-ZG1/2, and provide a reliable reference for industrial field pressure testing.

I. Technical Performance and Parameter Analysis

The core advantage of diffused silicon sensors lies in their superior temperature stability and long-term drift control. The DG1300-BZ-A-2-1 utilizes the piezoresistive effect principle of single-crystal silicon and achieves a temperature drift of ±0.05%FS/℃ through laser correction technology, maintaining stable output within an ambient temperature range of -20 to 85℃. Actual measurement data shows that its overall accuracy reaches 0.25 class at a 10MPa range, far exceeding the industry average of 0.5 class for similar ceramic piezoresistive sensors.

Similar to the domestically produced YP7024 sanitary pressure sensor , this product supports a 4-20mA two-wire output with a power supply voltage range of 9-36VDC, making it particularly suitable for explosion-proof applications. Its 316 stainless steel diaphragm can withstand twice the full-scale overload pressure and performs excellently in hydraulic system pressure shock tests.

II. Comparative Analysis and Industry Applications

Compared to traditional strain gauge sensors, diffused silicon technology solves three key pain points: 1) media compatibility issues, avoiding the risk of O-ring aging through a fully welded structure; 2) response speed improved to 5ms level, meeting the needs of rapid start-up and shutdown monitoring of air compressors; 3) temperature compensation range extended to -30～85℃, adapting to high-temperature scenarios such as thermal power units.

III. Installation and Debugging Practical Guide

This product uses an M20×1.5 standard threaded interface and supports vertical/horizontal installation. Please note: 1) When measuring gas pressure, it is recommended to install the valve assembly above the sensor; 2) When measuring liquids, the pressure tap angle should be maintained ≥8° to avoid air bubble accumulation. The built-in zero/range adjustment potentiometer allows users to perform ±8% zero point shift and ±20% range adjustment on-site.

In a petrochemical refinery case study, after the DG1300 series replaced the original PT300 pressure transmitter, the pressure control fluctuation of the catalytic cracking unit decreased by 42%, thanks to its ≤5ms fast response characteristic. Similarly, the domestically produced YP7024 hygienic pressure sensor, a flat diaphragm pressure transmitter, has also demonstrated excellent hygienic performance in the food and pharmaceutical fields.

IV. Key Factors in Procurement Decisions

According to ASME B40.100 standards, the selection of industrial pressure transmitters should focus on: 1) media corrosivity (316L is superior to 304 stainless steel); 2) process connection method (seal differences between NPT1/4 and ZG1/2 threads); 3) explosion-proof certification level. The DG1300-BZ-A-2-1 is dual-certified by ATEX and IECEx, offering a safety advantage over more economical products like the FST800-501 in flammable and explosive environments.

In terms of cost, diffused silicon sensors are typically 15-20% more expensive than ceramic sensors, but considering their 5-year maintenance-free feature, the overall cost of use is actually more than 30% lower. For applications with limited budgets, entry-level models such as the HM13-10-250 can be considered as a transitional solution.

V. Solutions to Common Problems

Q: How to troubleshoot large output signal fluctuations? A: First, check the stability of the power supply voltage (it is recommended to observe with an oscilloscope). Second, confirm whether the ground loop has been eliminated (the signal line shielding layer is grounded at one end). Q: Does dielectric crystallization cause measurement failure? A: Select the special model BFY-1103 with fluororubber seal, or add a chemical isolation membrane.

If you require the complete technical specifications for the DG1300-BZ-A-2-1, or seek selection advice for other models such as the SY-PG1300-1.6MPa-GB, our engineering team can provide free operating condition analysis services. All products come with an 18-month warranty and support on-site calibration services.