Description
YOKOGAWA NFPW444-50 Product Overview
The YOKOGAWA NFPW444-50 is a high-performance multivariable pressure transmitter designed for demanding industrial process measurements. This advanced field instrument combines multiple measurement capabilities in a single compact device, providing comprehensive process monitoring while reducing installation costs and complexity.
Key Characteristics
Multivariable Measurement: Simultaneous pressure, differential pressure, and temperature
Advanced Diagnostics: Continuous monitoring of process and device health
Robust Construction: Suitable for harsh industrial environments
Wireless Option: Available with ISA100 Wireless compatibility
Technical Specifications
| Parameter | Specification |
| Product Model | NFPW444-50 |
| Manufacturer | YOKOGAWA |
| Product Type | Multivariable Pressure Transmitter |
| Measurement Ranges |
YOKOGAWA NFPW444-50
Differential Pressure: 0.1 kPa to 10 MPa
Static Pressure: Up to 32 MPa
Temperature: -40°C to +120°C
Accuracy |
DP: ±0.04% of URL
Static Pressure: ±0.1% of span
Output Signal | 4-20mA HART® 7 / FOUNDATION™ Fieldbus / PROFIBUS PA
Power Supply | 10.5-42V DC (loop powered)
Process Connection | 1/2″ NPT, 1/4″ NPT, or DIN 16288
Materials | 316L SST wetted parts, Hastelloy® options
Environmental Rating | IP66/IP68, NEMA 4X
Main Features and Advantages
1. Superior Measurement Performance
Silicon Resonant Sensor: Delivers exceptional stability and repeatability
Integrated Temperature Compensation: Ensures accuracy across operating range
Wide Turndown Ratio: 100:1 for flexible application
2. Advanced Functionality
Built-in Flow Calculation: Mass/volume flow without external computer
Predictive Maintenance: Sensor and process condition diagnostics
Multi-protocol Support: HART, Fieldbus, and PROFIBUS options
3. Robust Industrial Design
Dual-compartment Housing: Protects electronics from environment
Wide Temperature Operation: -40°C to +85°C ambient
Chemical Resistance: Compatible with aggressive process media
YOKOGAWA NFPW444-50
Application Field
Process Industries
Oil & Gas: Custody transfer, wellhead monitoring
Chemical/Petrochemical: Reactor monitoring, distillation
Power Generation: Steam system measurements
Specialty Applications
Pharmaceutical: Clean-in-place (CIP) systems
Food & Beverage: Hygienic process monitoring
Water Treatment: Pump protection and flow monitoring
Related Products
| Model | Description |
| NFPW447-50 | Higher pressure version (up to 42MPa) |
| NFPW444-51 | Flanged process connection variant |
| NFPW444-WL | Wireless ISA100 version |
| YTA320 | Temperature transmitter for complementary measurement |
| ADMAG TI | Magnetic flow meter for complete flow solution |
Installation and Maintenance
Installation Guidelines
Mounting: Vertical orientation recommended for condensable vapors
Impulse Lines: Keep as short as possible with proper slope
Grounding: Essential for lightning protection
Configuration: Use FieldMate™ or other configurator
Maintenance Procedures
Annual Verification: Zero and span checks
Diagnostic Review: Monthly status monitoring
Seal Inspection: Biannual O-ring condition check
Firmware Updates: As recommended by Yokogawa
Product Guarantee
Yokogawa provides:
5-Year Warranty: Standard coverage period
10-Year Support: Minimum product lifecycle commitment
Global Calibration: NIST-traceable certification
Technical Support: 24/7 expert assistance
Advanced Replacement: Critical spares program
The NFPW444-50 represents Yokogawa’s commitment to measurement innovation, combining multiple process variables in one reliable instrument to optimize plant performance and reduce total cost of ownership.
