The Woodward 9907-1197 represents the cutting-edge of industrial signal conversion technology, belonging to the renowned CPC-II series of current-to-pressure converters. This high-performance 9907-1197 model specializes in transforming 4-20mA electrical signals into precise 3-15psi pneumatic outputs with enhanced dynamic response characteristics. Designed specifically for critical process control applications, the 9907-1197 delivers unmatched stability and repeatability in demanding industrial environments. Its robust construction and advanced signal processing capabilities make the 9907-1197 an indispensable component in modern DCS and PLC systems where reliable signal conversion is paramount.
Technical Specifications
Product Model | 9907-1197
Manufacturer | Woodward
Product Type | CPC-II Current-to-Pressure Converter (Enhanced Dynamics)
Input Signal | 4-20mA DC (2-wire)
Output Pressure | 3-15psi (0.2-1.0 bar)
Response Time | <75ms (90% of span)
Accuracy | ±0.15% of span
Hysteresis | <0.08% of span
Supply Pressure | 20-30psi (1.4-2.1 bar)
Operating Temperature | -40°C to +95°C
Housing | Marine-grade aluminum with epoxy coating
Weight | 2.35kg
Mounting Options | Panel or DIN rail (35mm)
Certifications | ATEX, IECEx, SIL-2
Key Features and Advantages
The Woodward 9907-1197 sets new industry standards with its exceptional ±0.15% accuracy and ultra-fast 75ms response time, making it ideal for mission-critical control applications. Its innovative flapper-nozzle design ensures smooth, stable output even with fluctuating supply pressures. The 9907-1197 incorporates advanced temperature compensation that maintains precision across the full operating range from -40°C to +95°C. With its rugged marine-grade aluminum housing and corrosion-resistant finish, this converter thrives in harsh industrial environments. The unit’s field-adjustable zero and span settings simplify calibration, while intuitive status indicators facilitate quick troubleshooting.
Application Fields
The Woodward 9907-1197 excels in demanding industrial applications requiring precise pneumatic control. In oil & gas, it’s deployed for critical pressure regulation in compressor anti-surge systems. Power generation facilities utilize the 9907-1197 for precise fuel valve control in gas turbines. Chemical processing applications benefit from its stability in reactor pressure control loops. The converter also finds extensive use in pharmaceutical manufacturing where precise pneumatic control is required for bioreactor systems. Its robust design performs reliably in marine and offshore installations subject to vibration, humidity, and salt spray.
Related Products
- Woodward 9907-1198 current-pressure converter
- 9907-1199 – High-temperature version (up to 120°C)
- 9907-1200 – Compact DIN rail mount version
- 9907-1201 – Multi-input version (accepts voltage signals)
Installation and Maintenance
Installation preparation: When installing the Woodward 9907-1197, ensure clean, dry instrument air supply with proper filtration (40 micron recommended). Verify adequate space for maintenance access and proper grounding of the unit. All pneumatic connections should use appropriate thread sealant compatible with instrument air.
Maintenance recommendations: Regular inspection of the 9907-1197 should include checking for air leaks and verifying calibration accuracy. Annual recalibration is recommended for most applications, or quarterly in critical processes. Monitor the air filter differential pressure and replace when exceeding 5psi. Keep the unit clean and protect from excessive moisture and contamination.
Product Assurance
Woodward provides 24-month comprehensive warranty coverage for the 9907-1197, including replacement service with 48-hour turnaround for critical failures. Each unit undergoes extensive factory testing to ensure it meets Woodward’s stringent quality standards. Our global service network offers technical support and on-site assistance when required.
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