Oxymitter 4000

Instruction Manual

IB-106-340 Rev. 3.0 December 2003

SECTION 7 HART/AMS

7-1 OVERVIEW

The HART Communicator is a handheld com- munications interface device. It provides a common communications link to all microproc- essor-based instruments that are HART com- patible. The handheld communicator contains an 8 ⋅ 21 character liquid crystal display (LCD) and 25 keys. A pocket-sized manual, included with the HART Communicator, details the spe- cific functions of all the keys.

To interface with the Oxymitter 4000, the HART Communicator requires a termination point along the 4-20 mA current loop and a minimum load resistance of 250 ohms between the com- municator and the power supply. The HART Communicator accomplishes its task using a frequency shift keying (FSK) technique. With the use of FSK, high-frequency digital communica- tion signals are superimposed on the 4-20 mA Oxymitter 4000 current loop. The communicator does not disturb the 4-20 mA signal since no net energy is added to the loop.

The HART Communicator may be interfaced with a personal computer (PC), providing spe- cial software has been installed. To connect the HART Communicator to a PC, an interface adapter is required. Refer to the proper HART Communicator documentation in regard to the PC interface option.

7-2 HART COMMUNICATOR SIGNAL LINE CONNECTIONS

The HART Communicator can connect to the Oxymitter 4000 analog output signal line at any wiring termination in the 4-20 mA current loop. There are two methods of connecting the HART Communicator to the signal line. For applica- tions in which the signal line has a load resis- tance of 250 ohms or more, refer to method 1. For applications in which the signal line load resistance is less than 250 ohms, refer to method 2.

a.Method 1, For Load Resistance ≥ 250 Ohms

Refer to Figure 7-1and the following steps to connect the HART Communicator to a signal line 250 ohms or more of load resistance.

Explosions can result in death or seri- ous injury. Do not make connections to the HART Communicator's serial port, 4-20 mV signal line, or NiCad recharger jack in an explosive atmosphere.

Using the supplied lead set, connect the HART Communicator in parallel to the Oxymitter 4000. Use any wiring termination points in the analog output 4-20 mA signal line.

b.Method 2, For Load Resistance

<250 Ohms

Refer to Figure 7-2and the following steps to connect the HART Communicator to a signal line with less than 250 ohms load resistance.

Explosions can result in death or seri- ous injury. Do not make connections to the HART Communicator's serial port, 4-20 mA signal line, or NiCad recharger jack in an explosive atmosphere.

1.At a convenient point, break the analog output 4-20 mA signal line and install the optional 250 ohm load resistor.

2.Plug the load resistor into the loop connectors (located on the rear panel of the HART Communicator).

Rosemount Analytical Inc. A Division of Emerson Process Management

HART/AMS 7-1

Page 96 Page 98
Page 97
Image 97
Emerson 4000 manual Hart/Ams, Overview, Hart Communicator Signal Line Connections, Method 1, For Load Resistance ≥ 250 Ohms
Page 96 Page 98

4000 specifications

The Emerson 4000 is a state-of-the-art automation platform designed to enhance industrial processes and improve operational efficiency. This advanced system is recognized for its unparalleled reliability and flexibility, making it suitable for various industries such as oil and gas, chemicals, pharmaceuticals, and power generation.

One of the standout features of the Emerson 4000 is its robust architecture that comprises distributed control systems (DCS) and a comprehensive suite of software applications. This integration allows for real-time monitoring and control of complex processes, ensuring that operators have access to crucial data for informed decision-making. The system supports a wide range of field devices and protocols, facilitating seamless connectivity across various platforms.

The Emerson 4000 employs innovative technologies that elevate its performance. It incorporates advanced analytics and machine learning capabilities, which enable predictive maintenance and reduce downtime. By analyzing historical data and identifying patterns, the system can forecast potential failures, allowing operators to address issues before they escalate. This leads to increased uptime and significant cost savings.

Another key characteristic of the Emerson 4000 is its user-friendly interface. The intuitive design ensures that operators can navigate the system with ease, reducing training time and enhancing productivity. The customizable dashboards provide real-time insights and facilitate quick access to critical information, allowing teams to respond to changes in the process swiftly.

Security is also a cornerstone of the Emerson 4000 platform. The system includes multiple layers of cybersecurity measures to safeguard sensitive data and maintain the integrity of operations. This is crucial in today’s environment, where cyber threats are a significant concern for industrial facilities.

In addition, the Emerson 4000 excels in scalability. It can be easily expanded to accommodate the growing needs of a business without compromising performance. Whether an organization is looking to integrate additional processes or expand its operations geographically, the Emerson 4000 is designed to adapt and grow alongside the business.

Overall, the Emerson 4000 stands out as a powerful tool for industrial automation. Its combination of reliability, advanced technology, user-friendliness, security, and scalability makes it an ideal choice for organizations seeking to optimize their operations and drive efficiency in an increasingly competitive landscape.
Top Page Image Contents