As a core component of precision flow control equipment, the DG1300-BZ-A-2-40/CJ/AM/FZ pressure transmitter relies on the accurate calibration of its diffused silicon sensor, which directly affects the reliability of industrial measurement systems. This article focuses on the core needs of technical evaluators and provides a detailed analysis of a standardized 5-step calibration process to help you master the key calibration techniques for JPB-CNM, PBM4, and other series of diffused silicon pressure sensors.

I. The Core Value of Diffused Silicon Pressure Sensor Calibration

In demanding industrial scenarios such as petrochemicals and energy and power, a measurement error of more than 0.1% in the DG1300-BZ-A-2-40/CJ/AM/FZ pressure transmitter may lead to the risk of system shutdown. Diffused silicon sensors achieve pressure-to-electrical signal conversion through the semiconductor piezoresistive effect, and their calibration process must strictly comply with the IEC 60770-1 international standard. Test data from Xi'an Shenghongchuang Instrumentation Co., Ltd. show that the initial error of uncalibrated PBM4-13.B29R.A115.2663 series products can reach ±0.5%, while after the 5-step calibration process, the error can be controlled within ±0.075%FS.

II. Detailed Explanation of the Standardized 5-Step Calibration Process

Step 1: Pre-calibration Environment Setup

A laboratory environment with constant temperature (23±1℃) and humidity <60%RH is required, and equipment such as the Fluke 754 process calibrator should be used to establish the reference standard. Special attention should be paid to the DG1300-BZ-A-2-2.5/AA/SZWZH model, which is sensitive to vibration and requires an anti-vibration platform. According to the requirements of the technical manual for the PT201H-G5000M pressure transmitter, the preheating time must not be less than 30 minutes.

Step 2: Zero Point/Full Scale Calibration

Use the three-point calibration method (0%, 50%, 100% range) to input standard pressure signals for models such as PMP131-C1A2L16. The nonlinear characteristics of diffused silicon sensors require curve fitting using the least squares method. Typical parameters are shown in the table below:

III. Comparison of Key Indicators for Technical Evaluation

For special models such as MTPFU-MTPFU, the following parameters need to be additionally evaluated:

• Long-term stability: ≤±0.1%/year (ISO 9001 certification requirement)
• Temperature effect: ±0.02%FS/℃ (-20~80℃ range)
• Overload capacity: 150% range for 1 continuous hour

IV. Troubleshooting Common Calibration Failures

According to statistics from 200+ customer cases of Xi'an Shenghongchuang, the TOP3 causes of abnormal calibration in JPB-CNM pressure transmitters include:

1. Medium crystallization causing diaphragm contamination (accounting for 42%)
2. Power ripple >10mV (accounting for 35%)
3. Installation torque exceeding 15N·m (accounting for 23%)

V. Why Choose Shenghongchuang Instrumentation

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

• Full-range coverage of the DG1300 series (0.1-100MPa)
• Calibration reports issued by a CNAS-certified laboratory
• 48-hour rapid-response technical support

Contact 029-88589316 now to obtain customized calibration solutions for models such as PBM4-13.B38R.A115.2663.