ABB AHM550 – Hydrazine Analyzer – Navigator
Overview
The ABB AHM550 hydrazine analyzer continuously measures hydrazine in high-purity water so you can control scavenger dosing precisely—avoiding both under-dosing (corrosion risk) and over-dosing (chemical waste). The analyzer’s architecture separates the Navigator 550 hydrazine wet-section from the Navigator 540 transmitter, reducing footprint and allowing multi-stream builds where one transmitter trends up to four wet-sections (same or mixed parameters from the Navigator 500 range). Maintenance is simplified with buffered chemistry and temperature compensation within the wet-section; the transmitter provides local trending, audit logs and data export.
Key Features & Specs
• Continuous hydrazine measurement for boiler feedwater/condensate; optimized for power cycle chemistry.
• Modular design: ABB AHM550 wet-section + AWT540 transmitter; up to 4 wet-sections per transmitter for multi-point monitoring.
• Electrochemical measurement with automatic pH buffering and temperature compensation for accuracy and stability.
• Communications & I/O (AWT540): options for Modbus/Profibus/Ethernet; transmitter can add current outputs + relays and on-board data storage (per build).
• Low maintenance wet-section; simplified periodic reagent/consumable service.
• Local color display & trending on the transmitter; export logs for QA/compliance.
Typical Applications
• Power generation: boiler feedwater & condensate hydrazine control
• Industrial high-purity water loops using oxygen scavengers
• Deaerator outlet monitoring & chemical optimization
What’s Included / Ordering Notes
• AHM550 hydrazine wet-section (wall/panel mount, with plumbing kit per ABB options)
• AWT540 transmitter (order codes vary by mount, supply, and comms/I/O card)
• Reagents/consumables ordered per ABB kit codes; consult the datasheet for ranges, flow and ambient limits.
Installation & Maintenance
• Mount wet-section near sample point; maintain ABB-specified sample flow, temperature and pressure.
• Provide clean, conditioned sample (per datasheet), route waste safely.
• Schedule routine checks: reagents, tubing, zero/span verification; log alarms/trends via AWT540.
Compliance & Integration
• Designed for boiler water service and DCS integration via AWT540 comms (Modbus/Profibus/Ethernet options). Verify your plant protocol and I/O card selection at order time.
Request a Quote for ABB AHM550 – Hydrazine Analyzer – Navigator
Need the right build? Send your boiler pressure/temperature, expected hydrazine range, sample conditions, and preferred comms (Modbus/Profibus/Ethernet). Seven Star LLC will validate configuration, availability, and pricing—then ship a ready-to-commission kit.
Technical Overview
The ABB AHM550 is a continuous hydrazine analyzer within ABB’s Navigator 500 platform of liquid process analyzers, designed to monitor hydrazine dosing concentration in boiler feedwater treatment systems for corrosion control. Per ABB’s official datasheet (DS/AHM550-EN), the analyzer uses a wet-chemical, electrochemical measurement method: the water sample is first dosed with an alkaline reagent to raise its pH to approximately 10.5, then passed through an electrochemical cell containing a platinum anode and silver cathode, where the resulting cell current is directly proportional to the concentration of hydrazine present in the sample.
The AHM550 measures hydrazine concentration across a range of 0–1000 ppb (µg/l), with a fine resolution of 0.1 ppb, and measurement units selectable as ppb, µg/l, or µg/kg to match plant reporting conventions. Accuracy and repeatability are both specified at ±3% of reading or ±1 ppb, whichever is greater, with a response time of under 2 minutes for a 90% step change — fast enough to give operators timely feedback on dosing pump performance. The analyzer operates across a sample temperature range of 5°C to 55°C with automatic temperature compensation applied to the measurement. Output signals include 2 standard programmable analog outputs (0–22 mA range) and 4 standard relay outputs (with 2 additional relays available as an option), plus 6 configurable digital inputs/outputs; optional Ethernet (TCP/IP, HTTP) and Profibus DP connectivity are available for integration into a plant’s digital control network.
The AHM550 carries cULus safety approval, complies with EN61010-1 for electrical safety and IEC61326 for industrial EMC, and is CE-marked to both the EMC and Low Voltage Directives. As part of the shared Navigator 500 analyzer platform, the AHM550’s electronics and enclosure are common across ABB’s family of continuous liquid analyzers for different measured parameters (hydrazine, sodium, silica, and others), simplifying spares and operator training for plants running multiple Navigator 500 analyzers for different water-chemistry parameters.
Applications
The AHM550 is installed in power generation plants and industrial steam systems to continuously monitor hydrazine dosing efficiency — typically ahead of the boiler economizer inlet — ensuring the correct oxygen-scavenging chemical dose is maintained to prevent corrosion in boiler feedwater and steam-cycle piping. Accurate, continuous hydrazine monitoring helps plants avoid both under-dosing (corrosion risk) and over-dosing (chemical waste and potential downstream effects), directly supporting boiler reliability and reduced unplanned maintenance.
Why Seven Star LLC
Seven Star LLC supplies genuine ABB Navigator 500 series analyzers, including the AHM550 hydrazine analyzer, to power generation and industrial customers across Oman and the GCC, and assists with output configuration, communications protocol selection, and reagent/consumables supply to keep the analyzer in continuous, accurate operation.
Request a Quote for ABB AHM550 – Hydrazine Analyzer – Navigator
Contact Seven Star LLC to request a quotation for the ABB AHM550 Navigator hydrazine analyzer. Our team can help confirm the correct output configuration and communications options for your plant’s control system, and support reliable delivery and ongoing consumables supply across Oman and the wider GCC region.
Ordering Notes and Maintenance
When requesting a quotation, please specify the required analog output range, relay configuration, and any digital communications protocol (Ethernet or Profibus DP) needed for integration with your plant’s control system. Seven Star LLC also supplies genuine ABB reagents and consumables for the AHM550’s electrochemical measurement cell, and can advise on a recommended reagent replenishment and cell maintenance schedule to keep the analyzer’s accuracy within specification for continuous boiler feedwater treatment monitoring.
Related Products
- DatasheetABB AHM550 Datasheet Download
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.
Reviews
There are no reviews yet.