Diffused Silicon Hesman S-10 Pressure Transmitter Calibration Guide: How to Ensure Measurement Accuracy?

As a core component of industrial automation control, the measurement accuracy of the Diffused Silicon Hesman S-10 Pressure Transmitter directly affects system stability. Focusing on the core needs of technical evaluators, this article provides a detailed analysis of the calibration process for the S-10 Pressure Transmitter, covering the working principle of the Diffused Silicon Hesman pressure sensor, accuracy grade determination, and common fault handling solutions, helping you quickly master the key technical points for ensuring measurement accuracy.

I. Working Principle of the Diffused Silicon Hesman Pressure Sensor

The Diffused Silicon Hesman pressure sensor adopts the semiconductor piezoresistive effect principle. When external pressure acts on the sensing element, the silicon diaphragm deforms, causing the resistance value of the Wheatstone bridge to change, thereby outputting an electrical signal proportional to the pressure. The S-10 Pressure Transmitter converts the weak mV-level signal into a standard industrial signal (such as 4-20mA or 0-10V) through a precision amplification circuit. Its core advantages lie in:

• Temperature compensation technology: A built-in temperature sensor corrects temperature drift errors in real time, ensuring stable accuracy within the range of -40℃~125℃
• Multi-layer isolation structure: 316L stainless steel diaphragm and silicone oil filling technology achieve media isolation, making it suitable for corrosive environments
• Dynamic response characteristics: A response time of ≤1ms meets the needs of high-speed fluid pressure monitoring

Similarly, in the field of displacement measurement, Domestic displacement sensor KTS-A injection molding machine drawbar electronic ruler resistive ruler drawbar-type linear displacement sensor uses a conductive plastic measuring unit to achieve high-precision positioning of 0.04%FS through non-contact resistance detection. Its IP67 sealing rating and automatic centering function make it particularly suitable for harsh industrial scenarios such as injection molding machines.

II. Preparations Before S-10 Pressure Transmitter Calibration

A standardized calibration process should comply with the GB/T 17614.3-2015 standard. Technical evaluators should focus on the following aspects:

Special reminder: For troubleshooting models such as DLT-DLT200, first check the stability of the 24VDC power supply, and then measure whether the output signal is within the theoretical curve range of 4-20mA.

III. Step-by-Step Calibration Process and Accuracy Verification

Using the five-point method for calibration can comprehensively evaluate the linearity of models such as SPB-SPB101:

1. Zero-point calibration: Adjust the ZERO potentiometer under atmospheric pressure to make the output 4.000mA (or 0V)
2. Full-scale calibration: Apply the rated pressure and adjust the SPAN potentiometer to 20.000mA (or 10V)
3. Linearity test: Verify the error at 25%, 50%, and 75% range points, requiring ≤±0.1%FS
4. Hysteresis detection: The difference value measured in forward and reverse travel should be <0.05%FS
5. Temperature test: Re-test zero drift in environments of -20℃ and 60℃

Compared with the signal processing circuit in the PM-PM320 wiring diagram, the S-10 adopts three-wire wiring, which can effectively reduce the influence of line resistance. It is recommended to use shielded twisted pair cables with a cross-sectional area of ≥0.5mm².

IV. Common Fault Diagnosis and Handling Solutions

According to field application data of models such as PD-PD50, high-frequency fault modes include:

• Signal fluctuation: Check whether the diaphragm is blocked by particles, flush the interface, and replace the filter
• Output saturation: Confirm whether the range setting matches and recalibrate the FS parameters
• Communication interruption: Test whether the supply voltage is within the range of 18-36VDC and eliminate line short circuits
• Long-term drift: According to the CX-203 service life standard, periodic calibration is recommended every 2 years

For vibration environments such as injection molding machines, you can refer to the buffer stroke design of Domestic displacement sensor KTS-A and install a pulse damper at the pressure interface.

V. Accuracy Grade Determination and Maintenance Recommendations

According to the YSJ-B1 accuracy standard, the actual grade of the S-10 transmitter needs to be calculated using the following formula:

Accuracy(%FS)=|(Measured value-Standard value)|/Range×100%

Recommended maintenance intervals:

• Conventional operating conditions: Perform on-site calibration every 12 months
• High-temperature/corrosive environments: Return to the laboratory for calibration every 6 months
• Critical control points: Configure redundant transmitters to enable online switchover

Summary and Technical Service Support

Through a systematic calibration process, transmitters of the FDS-S specification model can be ensured to continuously meet the 0.1 accuracy grade requirement. Xi'an Shenghongchuang Instrument Co., Ltd. provides calibration services compliant with the ISO/IEC 17025 standard. Our technical team can customize for you:

• Selection solutions for pressure/displacement sensors
• On-site calibration and fault diagnosis services
• Customized signal processing module development

Contact our technical consultants now to obtain the complete calibration manual and industry application cases for the S-10 Pressure Transmitter.