EMERSON 702DX32D1NAWA3WK1 l/O interface module

EMERSON Rosemount 702DX32D1NAWA3WK1 Overview

The Emerson Rosemount 702DX32D1NAWA3WK1 is a Rosemount 702 Wireless Discrete Transmitter. It's a key component in Emerson's industrial wireless solutions, designed to wirelessly transmit discrete (on/off) input signals or act as a discrete output. This specific model features dual discrete inputs and is equipped with an external antenna for enhanced wireless communication.

Product Detailed Description

The Rosemount 702 Wireless Discrete Transmitter provides a ready-to-install solution for a variety of discrete input or output applications. It functions by detecting changes in dry contacts (switches) and transmitting this information wirelessly to a host system (e.g., a control system or a monitoring application).

• Functionality:

• Discrete Dual Input (dry contact): This specific model (indicated by "32" in the model number) is designed for two independent discrete inputs using dry contacts. It can detect momentary inputs and count them, making it suitable for applications where transient events need to be captured.

• Wireless Communication: It leverages WirelessHART technology to transmit data securely and reliably across a self-organizing mesh network. This ensures high data reliability (typically >99%) even if obstructions are introduced, as the network can re-route data through alternative paths.

• Continuous Measurement: Momentary inputs are continuously measured and processed between wireless updates, ensuring no event is missed.

• Security: Implements industry-standard encryption, authentication, verification, anti-jamming, and key management for secure data transmission.

• Key Features:

• Dual Channels: Each of the two channels can be configured for discrete input or discrete output, offering flexibility (though this specific "32" model is primarily input).

• Self-Organizing Network: Devices automatically find the best communication paths, ensuring robust and reliable data flow.

• External Antenna (WK1): The "WK1" suffix indicates an external antenna and an adapter for a black power module (I.S. Power module sold separately), enhancing wireless range and signal strength, particularly beneficial in challenging industrial environments.

• NPT Connection (D1): The "D1" indicates a 1/2–14 NPT process connection.

Product Parameters

• Model: Rosemount 702 Wireless Discrete Transmitter

• Specific Configuration (702DX32D1NAWA3WK1):

• DX: Wireless Discrete Transmitter

• 32: Discrete dual input (dry contact), detects momentary inputs and counts.

• D1: ½–14 NPT process connection.

• NA: Standard approvals (North America).

• WA3: Standard configuration for device setup.

• WK1: External antenna, adapter for black power module (I.S. Power module sold separately).

• Wireless Protocol: WirelessHART (IEEE 802.15.4)

• Data Reliability: >99%

• Input Type: Dry contact switches

• Number of Inputs: 2 (dual channel)

• Power Module: Requires an external I.S. Power module (sold separately) for operation.

• Operating Temperature Range: (Typical for Rosemount 702 series) -50°C to 85°C (-58°F to 185°F). Always verify specific temperature ratings in the official datasheet.

• Communication Range: Varies based on environmental factors and antenna type. The external antenna (WK1) generally provides enhanced range compared to internal antennas.

Product Advantages

• Reduced Wiring Costs: Eliminates the need for extensive wiring runs, significantly reducing installation time and material costs, especially in remote or difficult-to-reach locations.

• Enhanced Reliability: The self-organizing mesh network provides redundant communication paths, ensuring high data reliability and availability.

• Increased Flexibility and Scalability: Easy to deploy and re-deploy, allowing for flexible system expansion and adaptation to changing process needs without extensive re-wiring.

• Improved Safety: Reduces personnel exposure to hazardous areas by eliminating the need for wired connections. Can be integrated into safety shower/eyewash kits for remote monitoring.

• Data Richness: Continuously measures momentary inputs, providing more detailed data for analysis and process optimization.

• Robust Security: Industry-standard encryption and security features protect against unauthorized access and interference.

• Ease of Integration: Seamlessly integrates with existing control systems and asset management platforms that support WirelessHART.

Precautions

• Power Module: This transmitter requires an external Intrinsically Safe (I.S.) power module (sold separately). Ensure the correct and compatible power module is used.

• Antenna Installation: For optimal wireless performance, ensure the external antenna is installed correctly and unobstructed. Consider line-of-sight and potential interference sources.

• Network Planning: While self-organizing, proper network planning is crucial for large or complex deployments to ensure optimal signal strength and reliability throughout the network.

• Environmental Conditions: Ensure the operating environment (temperature, humidity, vibration) is within the specified limits of the transmitter.

• Mounting: Securely mount the transmitter according to Emerson's installation guidelines to prevent damage from vibration or physical impact.

• Intrinsic Safety: If used in hazardous areas, strictly adhere to intrinsic safety guidelines for installation, wiring, and maintenance.

• Firmware Updates: Regularly check for and apply firmware updates to ensure optimal performance and security.

Product Applications

The Rosemount 702 Wireless Discrete Transmitter is ideal for monitoring and controlling discrete signals in a wide range of industrial applications, including:

• Process Monitoring:

• Monitoring the open/closed status of valves, gates, and dampers.

• Detecting equipment start/stop conditions.

• Monitoring tank levels (high/low alarms via discrete switches).

• Safety Applications:

• Remote monitoring of safety shower and eyewash stations (e.g., using specific safety shower kits).

• Monitoring emergency stop buttons (for status indication, not for direct safety interlocks without proper safety system integration).

• Detecting security breaches or access control (door open/closed).

• Asset Monitoring:

• Monitoring the operational status of pumps, fans, and motors.

• Detecting limit switch activations on conveyors or machinery.

• Plunger Arrival Detection: (For specific models within the 702 series, the 702DX52, used with ETC Cyclops™ Plunger Arrival Sensors for oil and gas applications). While the 702DX32 can detect momentary inputs, the 52 is specialized for this.

• Remote Site Monitoring:

• Monitoring discrete alarms and conditions in remote or geographically dispersed facilities (e.g., pipelines, wellheads).

• Energy Management:

• Monitoring the on/off status of lighting or other electrical loads for energy optimization.

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