Instruction Manual

Form 5715

June 2007

HF300 Series

FIELDVUER HF300 Series HARTR Filters

Introduction

Scope of Manual

This instruction manual includes installation and maintenance information for the FIELDVUER HF300 Series HARTR Filters. Refer to separate manuals for additional information on other FIELDVUE products used with the HART filters, such as DVC6000 Series digital valve controllers, and Type 2530H1 HART interchange multiplexers.

Control system refers to a distributed control system (DCS), programmable logic controller (PLC), or a stand-alone controller that provides a control signal to the FIELDVUE instrument.

Do not install, operate, or maintain HF300 Series HART filters without first D being fully trained and qualified in valve, actuator and accessory installation, operation and maintenance and D carefully reading and understanding the contents of the manual. If you have any questions about these instructions, contact your Emerson Process Managementt sales office before proceeding.

Description

HF300 Series HART filters, shown in figure 1, are used with HART-based FIELDVUE instrumentation, such as DVC6000 Series digital valve controllers. These filters are used when this instrumentation is connected to a 4 to 20 mA DC control system output that was not designed for the HART (Highway Addressable Remote Transducer) communication protocol.

The HF300 Series HART filters consist of the Type HF340 HART filter that provides filtering and isolation between the control system and FIELDVUE instrument and the Type HF341 communication tap. The Type HF341 does not provide any filtering. It is simply a straight through device that provides a convenient connection for HART communication.

FIELD INSTRUMENT CONNECTIONS (FLD)

HART COMMUNICATION

CONNECTIONS (COMM)

CONTROL SYSTEM

CONNECTIONS (SYS)

W8283 / IL

Figure 1. FIELDVUER HF300 Series HARTR Filters

The Type HF340 HART filter is a passive device that is inserted in-line with both wires of a HART 4 to 20 mA DC output loop. The purpose of the filter is to effectively isolate the control system analog output from modulated HART communication signals. The filter receives a 4 to 20 mA DC current signal from the control system, which it shunts with a capacitor and then passes through an inductor. The low AC impedance of the capacitor prevents sudden changes in the control system current output from interfering with the HART communication. The high AC impedance of the inductor permits HART communication on the instrument side of the filter. It also prevents the voltage modulation in the HART loop from being seen by, or having an affect on, the control system output. The filter introduces a maximum input-to-output voltage drop of 2 volts DC at 20 mA as long as the output load voltage is less than 14 volts DC.

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Emerson Process Management HF300 instruction manual Introduction, Description, Scope of Manual
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HF300 specifications

Emerson Process Management’s HF300 is a sophisticated automation solution designed to enhance control and monitoring in various industrial processes. This state-of-the-art system is widely recognized for its versatility and reliability across multiple sectors, including oil and gas, chemical, and power industries.

One of the primary features of the HF300 is its advanced control algorithms, which enable precise and efficient operations. The system utilizes model predictive control (MPC) technology, allowing it to anticipate process changes and optimize performance accordingly. This proactive approach helps in minimizing deviations, ensuring that processes run smoothly and efficiently.

The HF300 is also equipped with robust data analytics capabilities. By leveraging real-time data, the system can provide actionable insights that facilitate informed decision-making. Users can easily monitor performance metrics, detect anomalies, and identify areas for improvement. This intelligence not only enhances operational efficiency but also reduces downtime and maintenance costs.

Another significant characteristic of the HF300 is its modular design. This architecture allows for scalability and flexibility, enabling organizations to tailor the system to their specific needs. Whether a company is looking to expand its operations or integrate new technologies, the HF300 can evolve alongside these changes without necessitating a complete overhaul.

The HF300 integrates seamlessly with Emerson’s DeltaV distributed control system, which further enhances its capabilities. This integration provides a unified platform for process automation, allowing for streamlined management of complex control systems. Furthermore, Emerson's commitment to cybersecurity ensures that the HF300 is equipped with robust security measures, protecting sensitive data against potential threats.

Reliability is another hallmark of the HF300. The system is designed to operate in harsh environments and is built with quality components that withstand extreme conditions. This resilience translates to minimal downtime and a longer lifecycle, enabling organizations to achieve a higher return on investment.

In conclusion, Emerson Process Management’s HF300 stands out as a powerful automation solution characterized by advanced control technologies, real-time data analytics, modularity, seamless integration, and reliability. It offers organizations the tools necessary to optimize their operations and maintain a competitive edge in today’s dynamic industrial landscape.
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