Nexisense 800-2100 Diffused Silicon Pressure Transmitter: A Reliable Core for Industrial Process Measurement and Control

Modern industrial production increasingly relies on precise control of process parameters. Pressure, as one of the most fundamental and frequently measured physical quantities, directly affects product quality, production continuity, equipment lifespan, and energy efficiency. From subtle pressure fluctuations in chemical reactors, to stable furnace pressure in metallurgical blast furnaces, to constant-pressure water supply in municipal pumping stations, any inaccurate pressure signal can trigger chain reactions and even pose safety risks.

The Nexisense 800-2100 diffused silicon pressure transmitter is designed precisely to address these real industrial demands. Centered on advanced diffused silicon sensing technology and combined with an all-stainless-steel structure, wide-temperature digital compensation, and strong anti-interference capability, it delivers long-term stable and high-precision pressure data under various harsh operating conditions, becoming a trusted sensing component for automation engineers and maintenance personnel.

Diffused Silicon Sensing Technology: The Fundamental Source of Accuracy and Long-Term Stability

The core advantage of a diffused silicon pressure transmitter lies in its sensing element manufacturing process. Through semiconductor diffusion doping technology, a Wheatstone bridge structure is formed on a monocrystalline silicon substrate. When pressure acts on the isolation diaphragm, the bridge resistances undergo minute changes, which are then amplified and compensated to output a standard signal.

Compared with traditional strain gauge or ceramic capacitive sensors, diffused silicon sensors offer higher sensitivity, lower hysteresis and creep, and exceptionally strong long-term stability. The long-term zero drift of the Nexisense 800-2100 is better than ±0.1%FS/year. This means that even after 3 to 5 years of continuous operation, most applications do not require recalibration, significantly reducing maintenance costs and downtime risks for industrial facilities.

The product achieves digital temperature compensation across the full temperature range from -40°C to +85°C, keeping temperature-induced drift at a very low level. Even during cold winter startups or continuous operation in hot summer conditions, measurement errors remain within acceptable limits.

The following illustrates the typical operating principle of a diffused silicon pressure sensor along with a reference to the actual product appearance:

All-Stainless-Steel Structure and Excellent Media Compatibility

Industrial process media are often complex and diverse, including pure water, tap water, cooling fluids, hydraulic oil, corrosive acids and alkalis, and particle-laden slurries. The Nexisense 800-2100 uses a 316L stainless steel isolation diaphragm and an all-stainless-steel housing. The media-contacting surfaces contain no non-metallic materials, effectively preventing chemical corrosion, permeation, and contamination.

With an IP65 protection rating, it reliably resists dust ingress and water jets from all directions, making it suitable for outdoor pumping stations, humid workshops, and dusty metallurgical environments. Its EMC circuit design further enhances immunity to interference and has passed industrial-grade lightning protection, radio-frequency interference, and electromagnetic compatibility tests. Even when installed near frequency converters or high-power motor groups, the signal remains stable and reliable.

Wide Measuring Range Coverage and Fast Dynamic Response

The Nexisense 800-2100 offers a full range of measuring spans, from several kilopascals of low pressure to tens of megapascals of high pressure, supporting gauge pressure, absolute pressure, and differential pressure measurement. Standard output is a two-wire 4–20 mA current signal, with optional 0–5 V or 0–10 V voltage outputs, ensuring seamless compatibility with mainstream PLCs, DCS systems, industrial computers, and field instruments.

The response time is typically in the millisecond range, enabling accurate capture of transient pressure changes. This makes it especially suitable for applications requiring rapid feedback, such as hydraulic load fluctuations, pump start-stop pressure surges, and filter differential pressure monitoring.

In terms of safety, the product integrates short-circuit protection and reverse polarity protection, with a 150%FS overload capacity and a 200%FS burst pressure. Even under occasional overpressure shocks, it maximizes protection for both the sensor itself and downstream systems.

Typical Application Scenarios: Comprehensive Empowerment from Source to Endpoint

Water Treatment and Municipal Water Supply Systems
By installing the Nexisense 800-2100 at key points such as intake pumping stations, distribution pipelines, and booster stations, constant-pressure water supply control can be achieved. In conjunction with variable frequency drives, pump speed is automatically adjusted based on real-time pressure, ensuring stable user water pressure while significantly reducing energy consumption.

Chemical and Petroleum Process Control
Pressure monitoring in reactors, distillation columns, and storage tanks requires high accuracy and corrosion resistance. The Nexisense 800-2100 provides reliable signals in these scenarios, supporting remote alarms and interlock protection to ensure safe and controllable processes.

Hydraulic Equipment and Machinery Manufacturing
Hydraulic presses, injection molding machines, and stamping lines demand extremely fast pressure response. The quick-response diffused silicon transmitter accurately captures peaks and fluctuations, helping optimize control curves and improve product consistency.

Metallurgy and Energy Industries
In high-temperature and high-pressure environments such as blast furnace pressure monitoring, rolling mill hydraulics, steam pipelines, and cooling water systems, wide-temperature compensation and high stability become decisive advantages.

Installation, Operation, and Maintenance Recommendations

1. Avoid strong vibration sources and direct sunlight during installation; use buffer pipes or flexible hoses for process connections to reduce vibration.
   2. Ensure reliable grounding of electrical connections to prevent static discharge and lightning risks.
   3. Perform zero calibration before commissioning; verify accuracy every 12 to 24 months depending on media corrosiveness and operating severity.
   4. Thanks to its solid-state design with no moving parts and high-quality components, the product can achieve long maintenance-free operation cycles in most industrial environments.

   
   

Frequently Asked Questions (FAQ)

1. How should one choose between diffused silicon and ceramic capacitive pressure transmitters?
Diffused silicon offers superior accuracy, temperature stability, and long-term stability, making it suitable for most industrial processes. Ceramic capacitive sensors are more resistant to extremely corrosive media and can be considered as an alternative in such cases.

2. Does it support HART or digital communication?
The standard model provides analog output. HART protocol versions are available upon request for remote parameter configuration and diagnostics.

3. How should high-temperature media (>85°C) be handled?
Versions with heat sinks or remote diaphragm seals can be selected to keep the electronics away from high-temperature media.

4. How to determine whether a differential pressure type is required?
Differential pressure types are recommended for liquid level measurement, flow measurement (orifice or Venturi), and filter clogging monitoring. For general pipeline pressure, gauge or absolute pressure types are suitable.

5. What if electromagnetic interference is severe on site?
The built-in EMC protection has passed industrial-grade testing. If interference persists, shielded cables can be added and proper grounding ensured.

Conclusion: Precise Pressure, More Stable Production

Against the backdrop of industrial intelligence and green, low-carbon transformation, the reliability and cost-effectiveness of process control systems are becoming increasingly important. With its outstanding sensing technology, robust media compatibility, wide temperature adaptability, and excellent anti-interference performance, the Nexisense 800-2100 diffused silicon pressure transmitter provides a high-value, long-life pressure measurement solution for industries including chemicals, metallurgy, water utilities, hydraulics, and energy.

Choosing a truly reliable pressure transmitter is not merely purchasing an instrument, but investing in process continuity, sustained energy optimization, and multi-layered safety assurance. If your project is facing pressure monitoring upgrades, system stability improvements, or replacement of aging equipment, the Nexisense 800-2100 may be the key component you can confidently rely on.