Overview of Pressure Transmitter Reliability Testing in Extreme Environments

In the field of industrial automation, the reliability of WY-M pressure transmitters directly affects production safety and efficiency. This report provides rigorous testing of HJK-003, SDMB-1F, and other series products by simulating extreme operating conditions, offering key performance data for technical evaluators. Models such as GT2000 and HDP707 developed by Xi'an Shenghongchuang Instrumentation Co., Ltd. have demonstrated particularly outstanding stability in environments ranging from -40℃~125℃.

As a core component of flow control equipment, pressure transmitters are often used in extremely demanding environments in industries such as petrochemicals and power energy. Based on 20 years of industry experience, Xi'an Shenghongchuang Instrumentation Co., Ltd. has designed a comprehensive extreme environment testing program for product series such as HJK-007 and SDMB-1P, covering 7 major test categories including temperature shock, mechanical vibration, and electromagnetic interference, with data accuracy reaching 0.05%FS.

Testing Standards and Methodology

This test was conducted in strict accordance with GB/T 15478-2015 "Performance Test Methods for Pressure Sensors" and the international standard IEC 60770-1, with a focus on the following indicators:

• Temperature adaptability: 100 cycle tests were carried out within the range of -40℃~125℃ to monitor the zero drift of models such as GT100 and GT2000
• Mechanical stability: Random vibration of 10~2000Hz was applied to the HDP503K pressure transmitter to evaluate structural integrity
• Media compatibility: Diaphragm corrosion rate of the E+HP31 series in strong acid (pH1) and strong alkali (pH13) environments
• Long-term drift: Signal output stability of the WY-M pressure transmitter under continuous operation for 5000 hours at rated pressure

Key Test Data and Performance Analysis

Comparative test data shows that the HDP707 pressure transmitter using a 316L stainless steel isolation diaphragm demonstrates significant advantages:

It is particularly noteworthy that the SDMB-1P pressure transmitter equipped with a temperature compensation algorithm achieved a signal response time of only 2.3 seconds in the test with a sudden temperature change from -20℃ to 80℃, far superior to the industry average of 5 seconds. Meanwhile, the E+HP31 model using ceramic piezoresistive technology maintained 0.1% linearity even after a 10MPa high-pressure shock test.

Solutions for Extreme Operating Conditions

For different application scenarios, Xi'an Shenghongchuang provides differentiated configuration solutions:

1. Low-temperature environments: The GT100 series is equipped with a self-heating module that can automatically activate temperature compensation at -40℃
2. Corrosive media: The HDP707 uses a Hastelloy C276 diaphragm, improving acid and alkali resistance by 60%
3. Vibration environments: The WY-M pressure transmitter achieves an IP68 protection rating through potting technology
4. Electromagnetic interference: The HJK-007 has a built-in EMC filter and has passed IEC 61000-4-3 standard testing

Industry Applications and Value Verification

In a practical application at a refinery in Shaanxi, the catalytic cracking unit equipped with the HDP503K pressure transmitter operated continuously for 18 months without drift-related failures. Compared with imported brands, Xi'an Shenghongchuang's solution reduced maintenance costs by 42%, specifically reflected in:

• Spare parts replacement cycle extended from 6 months to 24 months
• System calibration frequency reduced from once a week to once a month
• Average mean time between failures (MTBF) reached 50,000 hours

Technical Summary and Selection Recommendations

Based on test data and field verification, it is recommended that technical evaluators focus on the following parameters:

Temperature coefficient: Selecting models such as GT2000 within ±0.02%/℃ can ensure measurement accuracy across a wide temperature range; Long-term stability: Annual drift should be ≤0.1%FS, and the HDP707 performed best in this test; Media compatibility: For chemical applications, the fully welded structural design of the E+HP31 is recommended.

Conclusion and Action Guide

This report confirms that the WY-M and HJK series pressure transmitters from Xi'an Shenghongchuang Instrumentation maintain excellent performance even in extreme environments. As a high-tech enterprise certified to ISO 9001:2015, we provide:

• 72-hour rapid sample delivery service
• Customized pressure measurement solutions
• Technical support for on-site installation and commissioning

To obtain the complete test report or consult on selection recommendations for models such as SDMB-1F and GT100, please contact our engineering technical team immediately. Call 029-8456XXXX or visit www.shengtech.com to obtain your dedicated flow control equipment solution.