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Endress+Hauser RTA421 User Manual

Endress+Hauser RTA421
92 pages
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BA00101R/09/C4/02.12
71202805
Softwareversion:
02.04.xx
Operating Instructions
RTA421
Contactor

Table of Contents

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Endress+Hauser RTA421 Specifications

General IconGeneral
OutputSPDT relay
Housing materialAluminum
Protection classIP66
Process connectionG1/2" or 1/2" NPT
ApprovalsATEX, IECEx

Summary

Safety Hints

Correct Use

Details correct usage, emphasizing safe installation and operation.

Personnel and Operational Requirements

Skilled Personnel for Installation and Operation

Outlines the need for skilled and authorized personnel for installation, operation, and repairs.

Technical Advancement

Notes the manufacturer's right to update technical details.

System Description and Mechanical Installation

System Overview

Explains the contactor's function in monitoring industrial processes and analyzing signals.

Mechanical Installation Hints

Provides guidance on installation location, temperature, and protection from heat.

Housing Dimensions

Presents the physical dimensions of the unit with a diagram.

Electrical Connection

Terminal Layout

Details the terminal assignments for power supply, loop power, and measurement signals.

Power Supply and Sensor Connection

Power Supply Connection

Instructions for connecting the power supply, including isolator requirements.

Connecting External Sensors

Guidelines for connecting active current/voltage sources and passive current sources.

Alarm Set Point Relay Connection

Connecting Alarm Relays

Illustrates the connection diagrams for Relay 1 and Relay 2 for alarm conditions.

Display and Operating Elements

Overview of Display Components

Describes the operational indicator, fault indicator, measured value display, and relay status.

Setting Up in Operating Menu

Menu Navigation and Key Functions

Explains how to navigate the menu, select functions, and enter parameters using the keys.

Operating Menu Overview

Parameter Structure and Ranges

Details the input, limit, and operating parameter structure with their respective ranges.

Setting Up Using "Quick Set"

Quick Set Procedure

Provides a step-by-step guide for setting up switchpoints and parameters using the Quick Set function.

Description of Operating Parameters

Analogue Input Setup

Covers the setup of the analogue measured input, including input range selection.

Alarm Set Point and Fault Monitoring

Operating Mode and Switch Threshold

Details setting the operating mode for alarm monitoring and defining switch thresholds.

Hysteresis Settings

Explains how to set hysteresis for switch thresholds to prevent rapid relay switching.

Time Delay and Hysteresis Logic

Time Delay Setting

Describes how to set a time delay for set point conditions after the threshold is reached.

Hysteresis Logic Explanation

Illustrates the connection between switch threshold and hysteresis for safety modes.

Operating Parameters and User Code

User Code Configuration

Explains how to set and change a user code for accessing unit settings.

Applications - Alarm Set Point Monitor

Silo Level Monitoring Example

Provides an example of setting up for minimum and maximum level monitoring in a silo.

Applications - Deep Well Measurement

Well Water Level Measurement

Details how to measure and display water depth in a deep well as a percentage.

Fault Finding and Repair

System Fault Messages

Lists system fault messages, their causes, and recommended solutions.

System Messages and Troubleshooting

Process Transmitter Fault Diagnosis

Details specific system messages, causes like EEPROM defects, and troubleshooting steps.

Technical Data - Core Specifications

General Unit Information

Covers unit function, application area, and measurement principle.

Input and Output Details

Specifies input types, ranges, resolution, and output signals for relays and loop supply.

Accuracy and Drift

Provides accuracy figures and temperature drift for measurements.

Technical Data - Installation and Operation

Installation and Environmental Conditions

Details installation angle, ambient temperature, climatic class, protection, and EMC immunity.

Construction and Display Features

Describes physical construction, dimensions, weight, materials, and display elements.

Operational Parameters and Settings

Lists operational modes, switch threshold, hysteresis, time delay, and reaction time.

Technical Data - Electrical and Certification

Power Supply and Consumption

Specifies power supply ranges, consumption, and fuse details.

Input Limit and Compliance

Provides input current limit and lists relevant certification marks and guidelines.

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