Woodward 9907-963 DLE Smart Pressure Transducer Manifold Assembly

Description

The Woodward 9907-963 DLE Smart Pressure Transducer Manifold Assembly is a high-precision pressure measurement device designed for dry low emissions (DLE) turbine control systems and industrial turbomachinery. It houses multiple internal pressure transducers on a central motherboard within an aluminum manifold housing, providing precise pressure monitoring and real-time data transmission to electronic control platforms such as MicroNet, NetCon, or Atlas.

The Woodward 9907-963 communicates with system controller interface modules or Field Termination Modules (FTM) using standard universal asynchronous receiver transmitter (UART) protocol over RS-422 differential signaling at 375 Kbaud. Power and communication lines are routed through integrated flying leads that pass through capacitive feed-through filter assemblies to suppress electrical noise picked up from field wiring.

Features

• Integrates multiple smart pressure transducers inside a single rugged manifold assembly.
• Employs RS-422 high-speed UART digital communication operating at 375 Kbaud.
• Features high-precision pressure measurement accuracy of +/-0.047% of full scale across operating temperature ranges.
• Includes internal capacitive feed-through filters on flying lead connections to attenuate external electrical noise.
• Designed for remote installation up to 300 m (1000 ft) away from the field termination module.
• Maintains fast dynamic response with a 20 Hz frequency response and 6 ms latency.

Applications

• Dry Low Emissions (DLE) gas turbine fuel and combustion control systems.
• Industrial turbomachinery monitoring and control platforms.
• MicroNet, NetCon, and Atlas electronic turbine control system architectures.
• High-accuracy industrial process pressure monitoring.

Technical Specifications

Connections/Interfaces

Installation Guidelines

• Mount the manifold assembly in an orientation that allows condensation to drain away from the pressure inlet ports.
• Ensure pressure tubing leading from the fluid source contains no low points where condensation or contaminants can accumulate.
• Keep tubing length between the pressure source and the manifold assembly to 2.4 m (8 ft) or less for DLE system applications.
• Tighten 1/4 inch Swagelok stainless steel fittings hand-tight, then rotate 1 to 1-1/4 turns with a wrench to seal the ferrule onto the tubing.
• Apply a cover bolt torque of 9.2 N-m (81 lb-in) on flameproof / Zone 1 enclosures to guarantee complete enclosure sealing.
• Power input must be supplied from an isolated Class 2 power source exhibiting less than 5000 pF total capacitance from output to earth/chassis.
• For Class I, Division 1 or Zone 1 applications, install a conduit seal within 457 mm (18 inches) or 50 mm (2 inches) of the conduit entry, respectively.

Compliance and Certifications

• CSA: Certified for Class I, Division 1, Groups C & D, and Class I, Division 2, Groups B, C, & D, T4 at 125 degC Ambient (Canada and USA). Certificate 1006295 (LR79726-5).
• ATEX Directive 2014/34/EU: Category 2, Group IIG, Ex db IIB T4 Gb (TÜV 12 ATEX 7245 X).
• UKEX: S.I. 2016 No. 1107, Certificate TÜV 22UKEX7110X (Ex db IIB T4 Gb).
• IECEx: Certified IECEx TUR 11.0012X Ex db IIB T4 Gb.
• EMC Directives: Declared to Directive 2014/30/EU and UK S.I. 2016 No. 1091 (EN 61000-6-2, EN 61000-6-4).
• Single Sealing: Tested per ANSI/ISA 12.27.01 Single Sealing requirements (CSA test report 16584-701103164).
• Machinery Directive: Compliant as partly completed machinery per Directive 2006/42/EC and UK S.I. 2008 No. 1597.
• Pressure Equipment Directive: Compliant as SEP per Article 3.3 to Directive 2014/68/EU.