ABB 100 ULTRA Series pH and ORP Sensors: Analog & Digital Solutions for Low-Conductivity Water

Monitoring high-purity water systems across Eastern Canada presents unique engineering challenges, particularly regarding measurement drift and reference instability. As a trusted strategic partner, Everest Automation provides the complete lineup of ABB pH/ORP sensors, anchored by the specialized 100 ULTRA and 100 ULTRA-D series. Engineered specifically for low-conductivity applications down to 2 microSiemens per centimeter, these probes combine maintenance-free performance with robust Kynar body construction, available in traditional analog wiring or advanced plug-and-play digital formats.

Understanding the 100 ULTRA Platform: Analog vs. Digital

Selecting the correct configuration ensures seamless integration with your plant control architecture. Both models share identical high-performance internal reference matrices and rugged physical footprints while offering distinct communication modalities:

Engineered for Stability in Pure Water Applications

Conventional pH sensors struggle in pure or low-conductivity water streams due to liquid junction potentials and rapid reference contamination. The 100 ULTRA and 100 ULTRA-D overcome these phenomena through advanced internal design principles:

• ▪Super-Saturated KCl Matrix: A high-volume internal chamber containing a maintenance-free, super-saturated potassium chloride gel electrolyte matrix eliminates the need for liquid top-ups while virtually eliminating measurement drift in samples down to 2 microSiemens per centimeter.
• ▪Built-In Ion-Trap Protection: Features an integrated ion-trap that actively captures silver chloride ions, preventing chemical poisoning and subsequent blocking of the reference junction over prolonged operational cycles.
• ▪Large Porous PTFE Reference Junction: Designed with an expansive porous PTFE matrix that resists coating, reduces plugging effects, and maintains exceptional electrochemical stability in demanding industrial water loops.
• ▪Close-Coupled Thermal Compensation: Incorporates a responsive integrated temperature element positioned for instantaneous tracking, ensuring high measurement precision during rapid thermal fluctuations.

Target Industries and Flexible Deployment Options

The 100 ULTRA series is specifically optimized for critical industrial environments where water purity directly impacts asset integrity and product quality. Key target applications across Eastern Canada include:

• Power Generation & Steam Analysis: Continuous monitoring of high-pressure boiler feedwater, steam condensate loops, and turbine protection systems.
• Water Treatment & Pharmaceuticals: Managing reverse osmosis (RO) permeate, demineralized water production headers, and high-purity rinse skids.

Built with a rugged 3/4 inch PVDF (Kynar) body offering outstanding chemical and abrasion resistance, these sensors integrate smoothly into standard process lines using modular accessories like flow cells and dip pole assemblies. Review complete engineering data on the official ABB 100 ULTRA Analog Sensor Page and the ABB 100 ULTRA-D Digital Sensor Page.

Optimize Your High-Purity Water Systems Today

Ensuring absolute accuracy in low-conductivity applications requires specialized instrumentation backed by expert technical support. Request a Quote Today to connect with an application specialist at Everest Automation and configure the ideal ABB analytical loop for your facility.