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Help CenterSmart Pressure Transmitter 4-20mA HART for Oil Gas Chemical Water Treatment Industrial Pressure Measurement
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The HN-1851 Series Pressure Transmitter provides precise monitoring for complex process conditions, supporting dynamic and static pressure measurement. Designed for direct installation into pipelines or vessels via standard threaded connections (e.g., ¼″ NPT, ½″ NPT, G½″, M20*1.5). This design minimizes installation complexity and enhances measurement stability.
Unlike traditional diffused silicon pressure transmitters, this monocrystalline silicon pressure transmitter uses a resonant monocrystalline silicon sensor that directly measures pressure through frequency changes of the silicon resonator — eliminating hysteresis, creep, and temperature drift issues common in piezoresistive sensors. The result is ultra-high accuracy up to ±0.075% FS, ±0.1% FS/3-year long-term stability, and almost zero temperature coefficient. The fully isolated 316L/Hastelloy/Tantalum diaphragm and all-welded stainless steel housing guarantee perfect performance even in the most corrosive and hygienic processes. IP68 protection and multiple explosion-proof options make it safe for Zone 0 hazardous areas.
The pressure transmitter is available in analog and digital versions, including 4–20mA pressure transmitter and digital pressure transmitter for process control, making it fully compatible with PLCs, DCS systems, and remote monitoring solutions. It is widely used as a dependable industrial pressure monitoring solution across automated production lines.
Technical specifications
| Product name | In-Line Pressure Transmitter |
| Model number | HN-1851TG |
| Case filling | Silicone Oil/Fluorine Oil |
| Measuring Range |
-0.1MPa…-0.6kPa~0~0.6kPa…100MPa(Gauge pressure); 0～0.6kPa… 100MPa (Absolute pressure) |
| Accuracy | 0.075%FS |
| Response Time | 90ms |
| Housing materials | Stainless Steel or Aluminum alloy |
| Wetted Materials |
Standard: SS316L Exotic: Hastelloy C276, Tantalum, Monel Alloy |
| Ambient Temperature | -40~85°C |
| Process Temperature | -40°C~+125°C/+400°C with remote seal |
| Temperature Coefficient |
±(0.015%URL+0.08%Span)/28°C(≤4MPa); ±(0.03%URL+0.08%Span)/28°C;(>4MPa); |
| Explosion-proof grade | Exia II CT6 /Exd II BT5 |
| Process connection |
Thread:¼” NPT, ½” NPT, G½”, Tri-Clamp; other threads available Flange/Special Customization available |
| Power supply | 24V DC, 220V AC |
| Output signal |
4-20mA/HART/Profibus/Modbus/Fieldbus Optional wireless transmission via Bluetooth/NB-IoT |
| Warranty | 1year |
| Protection | IP66/IP67 |
Typical Applications
WIKSTONE pressure transmitters are suitable for:
Pipeline pressure monitoring
Pump and compressor pressure control
Water supply and wastewater treatment systems
Chemical process pressure measurement
Oil & gas skid-mounted equipment
Hydraulic and pneumatic systems
Power plant auxiliary systems
Tank pressure and vessel pressure monitoring
Industrial automation and PLC control systems
Why Choose WIKSTONE Pressure Transmitter?
WIKSTONE provides industrial pressure measurement solutions for demanding process environments. Our pressure transmitters are engineered for stable signal output, easy field installation, and compatibility with PLC, DCS, data acquisition systems, and automation control panels.
For different working conditions, WIKSTONE can help customers select suitable pressure range, diaphragm material, process connection, output signal, and installation type. Customized configurations are available for corrosive media, high temperature, high pressure, vibration conditions, and OEM projects.
FAQ
Q1: What output signal does the pressure transmitter support?
A1: Standard output is 4-20mA. HART communication and other signals can be customized depending on the model.
Q2: Can the pressure range be customized?
A2: Yes. WIKSTONE can provide customized pressure ranges according to the customer’s working pressure and process requirements.
Q3: What media can this pressure transmitter measure?
A3: It can measure liquid, gas, steam, oil, water, and many industrial process media. For corrosive media, suitable wetted materials should be selected.
Q4: Can it be used with PLC or DCS systems?
A4: Yes. The transmitter provides standard industrial signals and can be connected to PLC, DCS, control panels, and data acquisition systems.
Q5: Do you support OEM or customized models?
A5: Yes. WIKSTONE supports customized pressure range, process connection, electrical interface, wetted material, and label requirements.
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