OEM HART475 Field Communicator User Manual

1. Introduction

This manual provides essential information for the proper use, connection, operation, and maintenance of the OEM HART475 Field Communicator. The HART475 is designed for smart transmitter operation using the HART Communication Protocol and is compatible with various instruments, including 1151, 3051, EJA, and ABB devices. Please read this manual thoroughly to ensure optimal performance and longevity of your device.

2. Product Overview

The OEM HART475 Field Communicator is a robust device for interacting with HART-enabled field instruments. It features a clear display, an alphanumeric keypad, and dedicated navigation keys for intuitive operation.

Front view of the OEM HART475 Field Communicator

Figure 2-1: Front view of the HART475 Field Communicator, showing the display and keypad.

2.1 Key Components and Functions

Diagram of HART475 Field Communicator components

Figure 2-2: Labeled diagram illustrating the main components of the Field Communicator.

Display: Shows operational data and menu options.
Alphanumeric Keypad: For data entry and function selection.
Navigation Keys: Used for menu navigation (Up, Down, Left, Right, Enter).
PV Key: Process Variable key for quick access to primary variable readings.
ON/OFF Button: Powers the device on or off.
Communicate Cable Port: For connecting to HART-enabled devices.
Charger Connector: For connecting the power adapter to charge the battery.
Battery Display: Indicates current battery charge level.

3. Setup

3.1 Unpacking and Initial Inspection

Upon receiving your HART475 Field Communicator, carefully unpack all components and inspect them for any signs of damage. Ensure all listed items are present:

HART475 Field Communicator unit
Battery pack
Charger
Communication cable
250 ohm resistor
Instruction Manual (this document)

HART475 Field Communicator with included accessories

Figure 3-1: The HART475 Field Communicator and its standard accessories.

3.2 Power Considerations

Before initial use, ensure the device is fully charged. Connect the charger to the device and a power outlet. The battery display will indicate charging status. For optimal performance and safety, observe the following:

Ensure the Field Communicator has no mechanical damage.
Confirm the battery is fully charged before extensive use.
When connecting to a circuit, ensure a string loop resistance of 250 ohms is present.

Diagram illustrating power considerations and circuit connection for the Field Communicator

Figure 3-2: Power considerations and circuit connection diagram.

3.3 Connecting the Field Communicator

To connect the Field Communicator to a HART-enabled device, use the provided communication cable. Ensure proper polarity and secure connections. Refer to Figure 3-2 for a visual representation of the connection to a circuit.

4. Operating Instructions

4.1 Starting the Device

Before starting, ensure the device is fully charged. Press and hold the power key until the LCD screen illuminates, indicating a successful boot. To power off the device, press and hold the power key again until the shutdown sequence completes.

4.2 Basic Functions and Navigation

The Field Communicator's interface is designed for ease of use. Utilize the navigation keys (Up, Down, Left, Right) to move through menus and options. The 'Enter' key confirms selections. The alphanumeric keypad allows for direct input of values and text.

Menu Navigation: Use the arrow keys to highlight options and 'Enter' to select.
Data Entry: Use the alphanumeric keypad for entering numerical values or text strings.
PV Key: Press the 'PV' key to quickly view the primary process variable.
Communication: Once connected, the device will establish communication with the HART instrument, allowing for configuration, diagnostics, and data retrieval.

5. Maintenance

To ensure the longevity and reliable operation of your HART475 Field Communicator, follow these maintenance guidelines:

Cleaning: Use a soft, dry cloth to clean the device. Avoid abrasive cleaners or solvents.
Battery Care: Charge the battery regularly. If storing the device for an extended period, ensure the battery is partially charged (around 50%) to prolong its lifespan. Avoid extreme temperatures.
Storage: Store the device in a cool, dry place, away from direct sunlight and excessive dust.
Cable Inspection: Periodically inspect the communication cable for any signs of wear or damage. Replace if necessary.

6. Troubleshooting

If you encounter issues with your HART475 Field Communicator, consider the following common troubleshooting steps:

Device Not Powering On: Check battery charge. Ensure the charger is properly connected if charging.
No Communication with Instrument: Verify the communication cable is securely connected to both the communicator and the instrument. Check for correct polarity. Ensure the instrument is powered and functioning correctly. Confirm the 250 ohm loop resistance is present in the circuit.
Display Issues: If the display is blank or unreadable, try restarting the device. Ensure the device is not exposed to extreme temperatures.
Keypad Unresponsive: Restart the device. Ensure no debris is obstructing the keys.

If problems persist after attempting these steps, please contact customer support for further assistance.

7. Specifications

Brand: OEM
Model: HART475
Power Source: Battery Powered
UPC: 610738024171
Compatibility: HART Communication Protocol (compatible with 1151, 3051, EJA, ABB, etc.)
Included Accessories: Battery, Charger, Communication Cable, 250 ohm Resistor

8. Glossary

This section defines key terms used in this manual and related to HART communication.

Glossary of terms related to HART communication

Figure 8-1: Glossary of technical terms.

Alphanumeric: An alphanumeric character set, often including other character sets, such as punctuation marks.
Device Configuration: To define the physical properties and operating characteristics of the device parameters. Does not include dynamic data.
Device Description: Written in the HART Foundation fieldbus devices instruction set, the device description language of the host application and the HART or FOUNDATION fieldbus device communication parameters, and methods of instruction are defined.
Field Equipment: In addition to HART digital communication signal, the field device can generate or receive analog signals.
HART Devices: Using the HART protocol for information communication equipment.
HART Loop: One communication network, the master and slave devices are HART smart or HART compatible devices.
HART Protocol: Addressing a high-speed remote communications protocol converter. One for the digital add-type 4-20mA communications and intelligent field devices, industry-standard protocols.
Poll: One kind of query the network in order to determine the method that the device online.

9. Warranty and Support

For any equipment repair needs or technical support, please contact the manufacturer or your authorized distributor. Refer to your purchase documentation for specific warranty terms and contact information. We are committed to providing assistance to ensure your satisfaction with the product.

OEM HART475