Description
YOKOGAWA PW702 Product Overview
The YOKOGAWA PW702 is a high-performance, digital pressure gauge designed for precise industrial pressure measurement in demanding process applications. As part of Yokogawa’s advanced instrumentation portfolio, this device combines digital accuracy with rugged reliability, making it ideal for oil & gas, chemical processing, and power generation applications where both precision and durability are critical.
Key Features
✔ High-visibility LCD display with bar graph and digital readout
✔ Dual pressure outputs (4-20mA + digital communication)
✔ Robust stainless steel housing (IP66/IP67 protection)
✔ Advanced diagnostics for predictive maintenance
✔ Bluetooth® connectivity (optional) for wireless configuration
Technical Specifications
| Parameter | Specification |
| Model | PW702 |
| Manufacturer | YOKOGAWA |
| Type | Digital Pressure Gauge |
| Pressure Range | -100 kPa to 100 MPa (selectable) |
| Accuracy | ±0.1% FS (FS = Full Scale) |
| Display Resolution | 0.01% of span |
| Output Signals | 4-20mA + HART® 7 / Bluetooth® (optional) |
| Process Connection | G1/2, 1/4″ NPT, or custom flanges |
| Materials | 316L stainless steel wetted parts |
| Operating Temp. | -20°C to +80°C |
| Power Supply | 10.5-30V DC (loop-powered) |
| Certifications | CE, ATEX (Zone 2), IECEx |
YOKOGAWA PW702
Main Features & Benefits
1. Superior Measurement Performance
High-accuracy piezoresistive sensor (±0.1% FS)
Fast response time (<50ms) for dynamic processes
Auto-zero function for drift compensation
2. Enhanced Usability & Connectivity
Large backlit LCD with bar graph & digital value display
Bluetooth® configuration (optional) for wireless setup
HART 7 compatibility for seamless DCS integration
3. Rugged Industrial Design
IP66/IP67 protection against dust & water ingress
316L stainless steel housing for corrosive environments
Shock & vibration resistant (up to 5g operational)
YOKOGAWA PW702
Application Fields
Oil & Gas
✔ Wellhead pressure monitoring
✔ Pipeline pressure verification
✔ Compressor station measurements
Chemical & Petrochemical
✔ Reactor pressure monitoring
✔ Pump discharge pressure checks
✔ Safety relief valve testing
Power Generation
✔ Steam pressure verification
✔ Boiler feedwater system checks
✔ Turbine lube oil pressure monitoring
Related Products
| Model | Description |
| PW701 | Basic digital pressure gauge (no HART) |
| PW703 | High-temperature version (up to 150°C) |
| PW482-11 | High-pressure transmitter (100 MPa) |
| YTA320 | Temperature transmitter |
| ADMAG TI | Magnetic flow meter |
Installation & Maintenance
Installation Guidelines
Mount vertically for optimal display visibility
Use proper sealing (PTFE tape or liquid sealant)
Avoid excessive vibration locations
Maintenance Recommendations
Annual calibration check for accuracy verification
Inspect O-rings & seals every 6 months
Update firmware via Bluetooth® or HART®
