HG-HG400 Pressure Transmitter Selection Tips: 5 Key Indicators for Diffused Silicon Hirschmann Pressure Sensors

As a key device in industrial measurement, the performance of the core component, the diffused silicon Hirschmann pressure sensor, directly affects measurement accuracy in the HG-HG400 pressure transmitter. This article, written by the expert team of Xi'an Shenghongchuang Instrumentation Co., Ltd., provides an in-depth analysis of the 5 key indicators for selecting diffused silicon Hirschmann pressure sensors in response to the purchasing challenges users care about most, helping you quickly master the selection points for transmitters such as the HG-HG400 and solve issues of accuracy, stability, and durability in practical applications.

1. Measurement Accuracy and Error Range

The core value of a diffused silicon Hirschmann pressure sensor lies in its measurement accuracy. For high-precision pressure transmitters such as the HG-HG400, it is recommended to choose products with an error of less than 0.5%F.S. In practical industrial applications, such as in the chemical and petroleum industries, even slight measurement errors may lead to serious consequences. Taking the domestic instrumentation XWP-S403 temperature detection alarm digital display controller as an example, its basic error is controlled within 0.5%F.S, and when used together with a pressure transmitter, precise monitoring can be achieved.

• Absolute accuracy: Refers to the maximum deviation between the sensor output value and the actual pressure value, usually expressed as a percentage of full scale
• Linearity error: Reflects the degree of deviation between the sensor output characteristic curve and the ideal straight line
• Repeatability error: The maximum deviation when measuring the same pressure multiple times under the same conditions

2. Long-Term Stability and Temperature Effects

The long-term stability of the diffused silicon Hirschmann sensor directly affects the maintenance cycle and service life of the HG-HG400 pressure transmitter. High-quality sensors should be able to maintain stable operation in an environment of 0℃~50℃, with humidity adaptability not lower than 90%R.H (non-condensing). Test data from Xi'an Shenghongchuang Instrumentation Co., Ltd. show that the PTB-PTB203 pressure transmitter produced by a standard manufacturer has a zero drift of no more than 0.1% after 2000 hours of continuous operation.

3. Media Compatibility and Sealing Rating

When purchasing the HG-HG400 pressure transmitter, it is necessary to confirm the chemical compatibility between the diffused silicon Hirschmann sensor and the measured medium. For corrosive media, a 316L stainless steel isolation diaphragm should be selected; for ordinary media, 304 stainless steel can be used. At the same time, pay attention to the IP protection rating, and IP65 or above is recommended for industrial sites. The PT-C pressure transmitter adopts a special treatment process and can withstand corrosion from most acid and alkali solutions.

1. Check medium characteristics: Acidity/alkalinity, viscosity, corrosiveness, etc.
2. Verify material compatibility: Diaphragm material, sealing material, etc.
3. Confirm pressure connection: Matching of standard connections such as G1/2 and NPT1/2

4. Output Signal and System Integration

Modern industrial control systems usually require pressure transmitters to have standard signal outputs, such as 4mA~20mA and 0V~10V. The excellent signal processing capability of the HG-HG400 can be used together with control instruments such as the domestic instrumentation XWP-S403, integrating measured value display, alarm output, and transmission functions. Special attention should be paid to output load capacity, and high-quality diffused silicon Hirschmann sensors should support loads greater than 600Ω.

For systems requiring multi-point monitoring, the PMP-PMP1400 pressure transmitter with HART protocol is recommended, which can realize online calibration and diagnostics. The YSJ-B2 model, with its simple wiring method and stable performance, has become an economical choice for single-point measurement.

5. Certification Standards and Warranty Service

Formal manufacturers of diffused silicon Hirschmann pressure sensors should provide complete certification documents, including international certifications such as CE and RoHS, as well as ISO9001 quality management system certification. Taking Xi'an Shenghongchuang Instrumentation Co., Ltd. as an example, its HG-HG300 pressure transmitter series products have all passed third-party testing agency certification and come with an 18-month warranty service.

• Required certifications: Explosion-proof certification (Ex d), EMC test report
• Service commitments: Technical support response time, spare parts supply cycle
• Calibration service: Whether regular calibration service and fee standards are provided

Summary and Purchasing Recommendations

When purchasing the HG-HG400 pressure transmitter, the above 5 key indicators should be comprehensively considered. According to actual application requirements, find the best balance among accuracy, stability, media compatibility, output method, and certification services. For scenarios where temperature and pressure need to be monitored simultaneously, it can be used together with multifunctional control instruments to achieve integrated monitoring.

As a professional pressure sensor manufacturer, Xi'an Shenghongchuang Instrumentation Co., Ltd. provides a full range of diffused silicon Hirschmann pressure sensor solutions from PT500-708 to LDN-LDN510. Welcome to contact our technical team for personalized selection recommendations and product demonstrations.

Act now: Visit our product center to learn more technical details about the HG-HG400 pressure transmitter, or call 400-xxx-xxxx for professional selection guidance.