Description
YOKOGAWA PW482-11 Product Overview
The YOKOGAWA PW482-11 is a high-performance, high-pressure transmitter designed for extreme industrial applications, including oil & gas, petrochemical, and power generation. This advanced pressure transmitter builds upon Yokogawa’s proven PW480 series, offering enhanced durability, wider measurement ranges, and improved diagnostics for critical process monitoring.
Key Features
✔ Ultra-high pressure measurement (up to 100 MPa / 15,000 psi)
✔ Superior accuracy (±0.075% of span)
✔ Single-crystal silicon resonant sensor for long-term stability
✔ HART 7, FOUNDATION Fieldbus, or PROFIBUS PA communication
✔ Robust construction for harsh environments (IP66/IP68, NEMA 4X)
✔ Advanced diagnostics for predictive maintenance
Technical Specifications
| Parameter | Specification |
| Model | PW482-11 |
| Manufacturer | YOKOGAWA |
| Type | High-Pressure Transmitter |
| Pressure Range | 0.1 kPa to 100 MPa (15,000 psi) |
| Accuracy | ±0.075% of span |
| Long-Term Stability | ±0.1% of URL per 10 years |
| Output Signal | 4-20mA HART 7 / FOUNDATION Fieldbus / PROFIBUS PA |
| Process Connection | 1/2″ NPT, G1/2, or ANSI flanges |
| Materials | 316L SST (standard), Hastelloy® optional |
| Operating Temp. | -40°C to +120°C (process media) |
| Ambient Temp. | -40°C to +85°C |
| Power Supply | 10.5-42V DC (loop-powered) |
| Certifications | ATEX, IECEx, SIL 2, CE, UL |
YOKOGAWA PW482-11
Main Features & Benefits
1. Exceptional Measurement Performance
Silicon resonant sensor ensures high stability & repeatability
100:1 turndown ratio for flexible application
Integrated temperature compensation for accuracy in varying conditions
2. Robust Industrial Design
Dual-compartment housing protects electronics from moisture & dust
High corrosion resistance (Hastelloy® options available)
Shock & vibration resistant (up to 5g operational)
3. Smart Diagnostics & Communication
Predictive maintenance alerts (sensor drift, plugging risk)
HART 7 digital communication for remote configuration
FOUNDATION Fieldbus & PROFIBUS PA for seamless DCS integration
YOKOGAWA PW482-11
Application Fields
Oil & Gas
✔ Wellhead pressure monitoring
✔ Pipeline pressure control
✔ HP/HT (High Pressure/High Temperature) applications
Petrochemical & Chemical
✔ Reactor pressure monitoring
✔ Compressor & pump protection
✔ High-pressure distillation columns
Power Generation
✔ Steam header pressure control
✔ Boiler feedwater systems
✔ Turbine protection
Related Products
| Model | Description |
| PW482-10 | Standard high-pressure version |
| PW482-50 | Extended range (up to 200 MPa) |
| PW481-50 | General-purpose pressure transmitter |
| YTA320 | Temperature transmitter for complementary measurement |
| ADMAG TI | Magnetic flow meter for flow monitoring |
Installation & Maintenance
Installation Guidelines
Mount vertically for gas applications to prevent liquid accumulation
Use proper impulse piping to avoid measurement errors
Ensure proper grounding for lightning & surge protection
Maintenance Recommendations
Annual calibration check for accuracy verification
Monitor diagnostic alerts for early fault detection
Inspect seals & gaskets periodically for leaks
