Product Overview
ABB AWT420 is a universal 4-wire, dual-input transmitter designed for water analysis and general process measurement applications. It supports a wide range of analog and digital sensor modules, helping users configure one transmitter platform for multiple measurement tasks.
The AWT420 series is suitable for drinking water, wastewater, industrial water, power generation and process control systems where flexible sensor compatibility, reliable diagnostics and easy maintenance are important.
Main Product Information
Brand: ABB
Model / Series: AWT420
Product type: Universal 4-wire dual-input transmitter
Application: Water analysis, liquid analysis, process monitoring and control
Inputs: Up to 2 analog or digital sensors
Mounting: Wall, panel or pipe mounting options
Key Features
The ABB AWT420 transmitter uses a modular design that can work with different sensor and communication modules. This helps reduce spare stock requirements and makes replacement or configuration changes easier for plant maintenance teams.
It supports analog pH/ORP, conductivity, turbidity and Universal Input Module options, as well as ABB EZLink digital sensors for plug-and-play connection, automatic sensor recognition and improved diagnostics.
The full-color graphical display, Easy Setup menus and Bluetooth connection through the EZLink Connect app make local setup and routine checking more convenient.
Communication And Control
Communication options include HART, Ethernet, PROFIBUS DP and Modbus RS485, allowing the transmitter to be integrated into different automation and plant control systems.
The AWT420 provides dual-channel PID control and supports analog, pulse length and pulse frequency control modes. It can also perform dual-sensor input verification and advanced calculations such as average, difference, ratio, percentage passage or percentage rejection, depending on the sensor configuration.
Technical Specifications
Display: 89 mm color 1/4 VGA TFT LCD with backlight
Power supply: 100 to 240 V AC ±10 %, 50/60 Hz, or 24 V DC
Power consumption: Less than 15 W
Protection rating: IP66 / NEMA 4X
Analog outputs: Two standard, four with module board fitted
Relay outputs: Four standard single-pole changeover relays
Data logging: Measurement values, audit log, alarm log, calibration log and diagnostics log to SD card
Mechanical And Environmental Data
The enclosure can be supplied in polycarbonate or aluminum depending on configuration. Typical dimensions are 144 mm height, 144 mm width and 99 mm depth excluding fixing brackets.
Operating temperature is -10 to 55 °C for general applications, with hazardous area operating temperature range listed as -10 to 45 °C. Ambient humidity can be up to 95 % RH non-condensing.
Approvals And Reliability
The ABB AWT420 series supports cULus safety approval, CE/UKCA marking, IEC 61010-1 general safety requirements and Lloyd's Register marine approval for applicable configurations.
Hazardous area approval options include IECEx/ATEX non-incendive versions for Zone 2 applications. The transmitter also conforms to IEC 61508 SIL requirements according to ABB safety documentation, depending on selected options.
Application Areas
Common applications include pH and ORP measurement, conductivity and resistivity monitoring, turbidity measurement, chlorine measurement, dissolved oxygen analysis and custom sensor input through the Universal Input Module.
This page is prepared for customers searching for ABB AWT420, AWT420 universal transmitter, ABB dual-input transmitter, ABB water analysis transmitter, ABB EZLink transmitter, ABB HART transmitter, PROFIBUS DP transmitter, Modbus transmitter and ABB Measurement & Analytics spare parts.
Why Choose HONGKONG XIEYUAN TECH
HONGKONG XIEYUAN TECH CO., LIMITED supplies industrial automation and process instrumentation products, including ABB transmitters, analyzers, controllers, drives and related spare parts.
Please send the exact model number, configuration code, quantity and required delivery time when making an inquiry, so we can help check availability and provide quotation support quickly.
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HONGKONG XIEYUAN TECH CO., LIMITED
Contact: Ms. Lily
Whatsapp: +86 13789949182,
E-mail: lily@hkxytech.com