ABB AWT420 Manual
  1. Manuals
  2. Brands
  3. ABB Manuals
  4. Transmitter
  5. AWT420
  6. Manual

ABB AWT420 Manual

Universal 4-wire, dual-input transmitter hazardous area version
Hide thumbs Also See for AWT420:
Table of Contents

Advertisement

Quick Links

Download this manual
—
A B B M E A S U R E M E N T & A N A LY T I C S | I N F O R M AT I O N
AWT420
Universal 4-wire, dual-input transmitter
Hazardous area version
Introduction
—
AWT420
Universal 4-wire,
The AWT420 is a universal 4-wire, dual-input
dual-input transmitter
transmitter suitable for the measurement and
control of a wide range of parameters including
pH, ORP, conductivity, turbidity/suspended
solids and dissolved oxygen.
This document provides details for AWT420 (metal)
enclosures for use in hazardous areas.
For information on AWT420 (plastic) enclosures for
use in non-hazardous areas refer to
The AWT420 supports both traditional analog and
advanced digital EZLink sensors. For information on
the sensors, including installation, commissioning,
operation and maintenance procedures, refer to the
specific sensor manual.
Measurement made easy
For more information
Further publications for the AWT420 transmitter
are available for free download from:
www.abb.com/measurement
or by scanning this code:
Links and reference numbers for the transmitter
publications are also shown below:
.
OI/AWT420-EN
AWT420 transmitter – Data Sheet
AWT420 transmitter –
Operating Instruction
AWT420 transmitter –
Commissioning Instruction
AWT420 transmitter –
HART Communications Supplement
AWT420 transmitter –
HART FDS Communications Supplement
AWT420 transmitter –
PROFIBUS Communications Supplement
AWT420 transmitter –
MODBUS Communications Supplement
AWT420 transmitter –
Ethernet Communications Supplement
Search for/click on:
DS/AWT420-EN
OI/AWT420-EN
CI/AWT420-EN
COM/AWT420/
HART-EN
COM/AWT420/
HART/FDS-EN
COM/AWT420/
PROFIBUS-EN
COM/AWT420/
MODBUS-EN
COM/AWT420/
ETHERNET-EN

Advertisement

Table of Contents
loading

Related Manuals for ABB AWT420

Summary of Contents for ABB AWT420

  • Page 1 Introduction For more information — AWT420 Universal 4-wire, The AWT420 is a universal 4-wire, dual-input Further publications for the AWT420 transmitter dual-input transmitter transmitter suitable for the measurement and are available for free download from: control of a wide range of parameters including www.abb.com/measurement...

  • Page 2: Table Of Contents

    Potential safety hazards ..... . 7 AWT420 transmitter – electrical ....3 Safety standards .

  • Page 3: Health & Safety

    AW T4 2 0 | U N I V E R S A L 4 - W I R E , D U A L- I N P U T T R A N S M I T T E R | I N F/A N A I N S T/0 1 2 - E N R E V. A Health & Safety Document symbols Potential safety hazards AWT420 transmitter – electrical Symbols that appear in this document are explained below: WARNING DANGER Bodily injury The signal word ‘DANGER’...

  • Page 4: Product Recycling And Disposal

    In conformity with European local and national ABB Ltd and its affiliates are not liable for damages and/or regulations, electrical equipment marked with the losses related to such security breaches, any unauthorized...

  • Page 5: Electrical Installation

    AW T4 2 0 | U N I V E R S A L 4 - W I R E , D U A L- I N P U T T R A N S M I T T E R | I N F/A N A I N S T/0 1 2 - E N R E V. A Electrical installation DANGER WARNING...

  • Page 6: Terminal Connections

    Communications Sensor 1 Sensor 2 Sensor module connections Analog output connections (see below for communication module connections) Communication module connections – refer to separate supplements: HART COM/AWT420/HART-EN MODBUS COM/AWT420/MODBUS-EN PROFIBUS COM/AWT420/PROFIBUS-EN ETHERNET COM/AWT420/ETHERNET-EN Main board connections: see below Internal protective...

  • Page 7: Hazardous Area Considerations

    DEMKO 20 ATEX 2259X Div 2 Grps A, B, C, D Hazardous locations IECEx ULD 20.0009X The AWT420 transmitter is a certified product suitable for No EZLink channels fitted, The equipment shall only be used in an Class I, Div 2, Gps A, B, C, D, T4 area of at least Pollution Degree 2, -10 C ≤...

  • Page 8: Risk Of Electrostatic Discharge

    Hazardous location safety control drawings –10 °C (14 °F) =< Ta =< 45 °C (113 °F) Click below to download the hazardous location safety drawings for AWT420 transmitter (or scan the QR codes): Europe NOTICE AWT420 Metal transmitter UL US control drawing Installation must be in accordance with IEC 60079-14 and the wiring practices for the country of installation.

  • Page 9: Output Parameters Of Ezlink Sensor

    AW T4 2 0 | U N I V E R S A L 4 - W I R E , D U A L- I N P U T T R A N S M I T T E R | I N F/A N A I N S T/0 1 2 - E N R E V. A Electrical installation in hazardous areas Output parameters of EZLink sensor IECEx/ATEX gland entries...

  • Page 10: Power Supply Connection

    NOTICE Electrical installation – ABB recommendations • Ferrules are fitted to all cables. • Use M5 ring terminals prior to fitting to the earth boss.

  • Page 11: Fitting The Hazardous Location Ezlink Bulkhead

    AW T4 2 0 | U N I V E R S A L 4 - W I R E , D U A L- I N P U T T R A N S M I T T E R | I N F/A N A I N S T/0 1 2 - E N R E V. A Fitting the hazardous location EZLink bulkhead connector Referring to Figure 6: WARNING...
  • Page 12 AW T4 2 0 | U N I V E R S A L 4 - W I R E , D U A L- I N P U T T R A N S M I T T E R | I N F/A N A I N S T/0 1 2 - E N R E V. A …4 Hazardous area considerations …Fitting the hazardous location EZLink bulkhead connector Referring to Figure 7:...

  • Page 13: Removing/Refitting A Panel-Mounted Awt420 Transmitter - Panel Seal Requirements

    AW T4 2 0 | U N I V E R S A L 4 - W I R E , D U A L- I N P U T T R A N S M I T T E R | I N F/A N A I N S T/0 1 2 - E N R E V. A Removing/refitting a panel-mounted AWT420 transmitter – panel seal requirements NOTICE +1.0...
  • Page 14 AW T4 2 0 | U N I V E R S A L 4 - W I R E , D U A L- I N P U T T R A N S M I T T E R | I N F/A N A I N S T/0 1 2 - E N R E V. A Acknowledgments •...
  • Page 15 AW T4 2 0 | U N I V E R S A L 4 - W I R E , D U A L- I N P U T T R A N S M I T T E R | I N F/A N A I N S T/0 1 2 - E N R E V. A Notes...
  • Page 16 We reserve the right to make technical changes or modify the contents of this document without prior notice. With regard to purchase orders, the agreed particulars shall prevail. ABB does not accept any responsibility whatsoever for potential errors or possible lack of information in this document.

Table of Contents