ABB-AWT210 2-wire conductivity, pH/ORP pION transmitter
Overview
The ABB AWT210 2-Wire Conductivity, pH/ORP pION Transmitter is a loop-powered, modular field transmitter engineered for accurate measurement of pH, ORP (oxidation-reduction potential), conductivity, and custom pION parameters across a single compact platform. Built on ABB’s plug-and-play modular technology, the AWT210 accepts a wide range of sensor types – from conventional 2-electrode and 4-electrode conductivity cells to toroidal conductivity sensors and digital EZLink pH/ORP sensors – letting one transmitter platform standardize instrumentation across multiple measurement points in a plant.
As the officially authorized partner and exclusive regional representative for ABB in Oman and the GCC, Seven Star LLC proudly supplies the AWT210 transmitter to water treatment, chemical, power, and food & beverage operators across the Sultanate of Oman and the wider Gulf region. Every unit is backed by genuine ABB manufacturer warranty, regional technical support, and access to original ABB sensors and accessories – the assurance that comes only from an authorized regional channel.
Operating Principle
The AWT210 is a genuinely 2-wire, loop-powered transmitter, meaning both power and signal share the same two-conductor field wiring – a significant installation cost advantage over a 4-wire transmitter that requires separate power and signal cabling runs back to the control room. For HART models, the AWT210 operates on 14–42 VDC in general-purpose areas or 14–30 VDC in intrinsically safe installations, with a polarity-safe design and a 12 VDC lift-off voltage; Foundation Fieldbus and PROFIBUS PA variants operate on 9–32 VDC (general purpose) or 9–24 VDC (intrinsically safe).
Sensor connectivity is handled through ABB’s EZLink digital technology for pH/ORP sensors, giving a quick, secure digital connection that eliminates the calibration drift and cable-length sensitivity that a purely analog sensor cable can introduce, alongside conventional analog inputs for glass or antimony pH electrodes and platinum or gold ORP electrodes. Intuitive one-button calibration and advanced self-diagnostics simplify commissioning and ongoing maintenance, while multi-level security access controls who can change calibration or configuration settings on a plant with multiple operator roles.
Engineering Design of the ABB AWT210
The AWT210 is housed in a compact 144 × 144 × 99 mm enclosure available in either aluminum (1.04 kg) or polycarbonate (0.7 kg) construction, both rated IP66/NEMA 4X for reliable outdoor and washdown-prone field installation. The transmitter operates across a –20°C to 60°C ambient temperature range, and both enclosure options carry ATEX/IECEx II 1G Ex ia IIC T4 Ga and cFMus (IS/NI) hazardous-area certification, making the AWT210 suitable for installation in classified areas without needing a separate explosion-proof housing.
Three digital communication options are available – HART, Foundation Fieldbus, or PROFIBUS PA – each supported by DTM, EDD, or FDI software drivers for integration with the plant’s asset management and configuration tools. This protocol flexibility means the same AWT210 platform can be specified consistently across a plant regardless of whether a given area runs a HART-based analog architecture or a full digital fieldbus network, simplifying spares holding and technician training.
Key Features
The AWT210 combines multi-parameter flexibility with field-hardened construction, including:
- Genuinely 2-wire, loop-powered design, eliminating separate power wiring runs to the field.
- Measures pH, ORP, 2-electrode conductivity, 4-electrode conductivity, toroidal conductivity, and custom pION parameters.
- ABB EZLink digital sensor connection for pH/ORP, alongside conventional analog glass, antimony, platinum, and gold electrode support.
- HART, Foundation Fieldbus, or PROFIBUS PA communication options with DTM/EDD/FDI software driver support.
- One-button calibration and advanced self-diagnostics for simplified commissioning and maintenance.
- Multi-level security access, controlling who can adjust calibration or configuration on shared installations.
- IP66/NEMA 4X enclosure in aluminum or lightweight polycarbonate construction.
- ATEX/IECEx II 1G Ex ia IIC T4 Ga and cFMus (IS/NI) certification for hazardous area installation.
Industrial Applications
pH, ORP, and conductivity monitoring underpin process control and water quality assurance across a wide range of Oman and the GCC’s industrial sectors, and the AWT210’s multi-parameter, multi-protocol flexibility makes it a natural standard-platform choice. In water and wastewater treatment, the AWT210 monitors pH for neutralization control and conductivity for demineralized water quality, while in chemical processing it tracks ORP for oxidation-reduction reactions and pH for reagent dosing control. In power generation, the same transmitter platform monitors boiler feedwater and cooling water chemistry, and in food & beverage processing it supports pH and conductivity monitoring for CIP (clean-in-place) verification and product quality assurance.
As the officially authorized partner for ABB in Oman and the GCC, Seven Star LLC distributes the AWT210 transmitter to water utilities, chemical plants, power generation facilities, and food & beverage processors across Muscat, Sohar, and Salalah, as well as the wider Gulf region. Its 2-wire, loop-powered architecture makes it particularly cost-effective for multi-point installations where field wiring runs are long or numerous.
Technical Specifications
Key technical specifications for the ABB AWT210 2-Wire Transmitter are summarized below.
| Parameter | Specification |
|---|---|
| Model | ABB AWT210 2-Wire Conductivity, pH/ORP pION Transmitter |
| Measured Parameters | pH/ORP, 2- and 4-electrode conductivity, toroidal conductivity, pION, EZLink digital pH/ORP |
| Wiring | 2-wire, loop-powered |
| Power Supply (HART) | 14–42 VDC (general purpose); 14–30 VDC (intrinsically safe) |
| Power Supply (FF/PROFIBUS PA) | 9–32 VDC (general purpose); 9–24 VDC (intrinsically safe) |
| Communication | HART, Foundation Fieldbus, or PROFIBUS PA |
| Enclosure Rating | IP66 / NEMA 4X |
| Dimensions / Weight | 144 × 144 × 99 mm; 1.04 kg (aluminum) or 0.7 kg (polycarbonate) |
| Operating Temperature | –20°C to 60°C |
| Hazardous Area Rating | ATEX/IECEx II 1G Ex ia IIC T4 Ga, cFMus (IS/NI) |
Request a Quote for ABB-AWT210 2-wire conductivity, pH/ORP pION transmitter
Seven Star LLC welcomes formal RFQs for the ABB AWT210 2-Wire Transmitter from water treatment, chemical, power generation, and food & beverage operators across Oman and the GCC. As the authorized partner for ABB in the region, we maintain regional stock availability, provide the full technical datasheet on request, and can connect your team directly with our instrumentation division for sensor selection and commissioning support. Contact Seven Star LLC today to request a formal quotation or technical consultation for your pH, ORP, or conductivity monitoring requirements.
Related Products
ABB is one of the world’s leading technology companies in electrification and automation, recognized for its commitment to innovation, reliability, and energy efficiency. With a history spanning more than a century, ABB delivers high-performance products and systems that help industries operate more intelligently and sustainably.
The company’s expertise covers a wide range of fields including power distribution, process automation, robotics, motion control, and digital solutions for smart manufacturing. ABB’s products are designed to enhance productivity, safety, and operational efficiency while reducing energy consumption and environmental impact.
Seven Star LLC supplies a complete selection of genuine ABB products, including industrial drives, PLCs, contactors, sensors, relays, and automation components, serving clients across oil & gas, energy, marine, and manufacturing sectors.
By combining ABB’s advanced engineering with Seven Star LLC’s trusted sourcing and support, customers gain access to reliable, future-ready industrial solutions built to meet the most demanding standards of modern industries.
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