ABB Aztec AFM631 Fluoride Analyzer
Overview
The ABB Aztec AFM631 is a continuous fluoride analyzer built on ABB’s Aztec 600 ISE (ion-selective electrode) platform, using a combination fluoride electrode with a lanthanum fluoride crystal sensing element to measure fluoride concentration across a 0.100–100 ppm (mg/l) range. Automatic 2-point calibration and a temperature-controlled flow cell give the AFM631 the measurement stability needed for continuous, unattended operation at municipal and industrial water treatment sites.
Seven Star LLC supplies the ABB Aztec AFM631 to water utilities and industrial water treatment operators across Oman and the wider GCC as an authorized partner for genuine ABB analytical instrumentation. Every unit is sourced through ABB’s official channel, supported by manufacturer documentation and warranty, and backed locally with commissioning, calibration, and regulatory-compliance application support.
Operating Principle
The lanthanum fluoride crystal at the heart of the sensing element generates an electrical potential proportional to fluoride ion activity in the sample, refreshed roughly every 2 seconds, giving the AFM631 resolution down to 0.001 ppm over the 0–10 ppm range and 0.01 ppm across 10–100 ppm. This ISE-based measurement principle responds specifically to free fluoride ions, making it well suited to both trace-level monitoring of source water and higher-concentration process streams.
Automatic 2-point calibration periodically verifies the electrode’s response against known reference standards, while the temperature-controlled flow cell holds the sample at a stable temperature during measurement, eliminating temperature-driven drift that would otherwise compromise accuracy in analyzers without this feature. Reagent consumption is low, with a single fill typically lasting up to three months between replenishment – reducing routine maintenance visits at remote or hard-to-access sampling points.
Engineering Design of the ABB Aztec AFM631
The AFM631 is built on ABB’s established Aztec 600 platform, which integrates the ISE sensing cell, sample conditioning, and electronics into a single field-mountable analyzer housing. Communication flexibility is a defining strength of the design: six fully programmable, isolated 0–20 mA current outputs allow the analyzer to interface directly with multiple control loops or recorders, while an RJ45 Ethernet port with an embedded web server provides TCP/IP, FTP, and HTTP access for remote monitoring and configuration without dedicated software.
An optional Profibus DP interface extends integration into plants standardized on that fieldbus, and onboard SD-card data logging with audit-trail capability supports regulatory record-keeping for drinking-water fluoridation programs. This combination of low-maintenance reagent chemistry and comprehensive digital connectivity makes the AFM631 well suited to unattended, long-term deployment.
Key Features
- Continuous fluoride measurement from 0.100 to 100 ppm via lanthanum fluoride ISE
- Resolution down to 0.001 ppm (0–10 ppm range) and 0.01 ppm (10–100 ppm range)
- Automatic 2-point calibration against reference standards
- Temperature-controlled flow cell for long-term measurement stability
- Six programmable, isolated 0–20 mA current outputs
- RJ45 Ethernet with embedded web server (TCP/IP, FTP, HTTP)
- Optional Profibus DP interface
- SD-card data logging with audit-trail capability; low reagent consumption (up to 3 months between fills)
Industrial Applications
The AFM631 is used by water utilities to monitor fluoride in source water and to control drinking-water fluoridation – or defluoridation, where natural fluoride levels exceed safe limits – dosing, keeping treated-water concentrations within the target regulatory range. Industrial water treatment plants also use it to track fluoride in process and effluent streams where regulatory discharge limits apply.
Across Oman’s municipal water and desalination sector, and throughout the wider GCC, Seven Star LLC supplies the AFM631 as an authorized ABB partner to water treatment plants in Muscat, Sohar, and Salalah that require reliable, factory-genuine fluoride analysis with full local support for regulatory compliance monitoring.
Technical Specifications
| Model | ABB Aztec AFM631 |
| Measurement Parameter | Fluoride concentration |
| Sensing Principle | Lanthanum fluoride ion-selective electrode |
| Measurement Range | 0.100–100 ppm (mg/l) |
| Resolution | 0.001 ppm (0–10 ppm); 0.01 ppm (10–100 ppm) |
| Calibration | Automatic 2-point |
| Outputs | 6 x isolated 0–20 mA, programmable |
| Communications | RJ45 Ethernet (TCP/IP, FTP, HTTP); optional Profibus DP |
| Data Logging | SD-card, audit-trail capable |
| Reagent Life | Up to 3 months between replenishment |
Request a Quote for ABB Aztec AFM631 Fluoride Analyzer
Contact Seven Star LLC for a quotation on the ABB Aztec AFM631 fluoride analyzer, backed by authorized ABB supply, genuine documentation, and local support across Oman and the GCC.
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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