ABB 4690 Series Turbidity Analyzers

The ABB 4690 Series Turbidity Analyzers are high-performance, industrial-grade systems designed for precise water quality monitoring in drinking water and filtration processes. Built with ABB’s advanced nephelometric technology, these analyzers deliver exceptional accuracy by measuring scattered light from suspended particles. The system incorporates automatic optical cleaning, dry standard calibration, and bubble elimination, ensuring long-term stable operation with minimal maintenance. With dual measurement ranges—0–40 NTU for low turbidity and 0–400 NTU for higher levels—the 4690 Series provides reliable, ISO 7027-compliant turbidity monitoring for critical water treatment applications.

Key Features & Benefits

High-Accuracy Turbidity Measurement
• Utilizes the nephelometric light-scattering principle for reliable readings.
• Features ultra-low backscatter detection for precise low-turbidity monitoring.
• Built-in bubble rejection technology prevents false readings.

Low-Maintenance Operation
• Automatic optical wiper system keeps the measurement cell clean.
• Dry calibration standards eliminate the need for liquid chemicals or frequent recalibration.

Fast & Simple Calibration
• Factory-certified dry reference standards make verification quick and user-friendly.
• Repeatable calibration ensures consistent performance over time.

Durable, ISO-Compliant Design
• Flow-through measurement cell delivers fast, continuous turbidity updates.
• Fully compliant with ISO 7027, meeting international regulatory standards.

Ideal for Potable Water Applications
• Perfect for drinking water plants, filtration systems, clarifiers, and post-treatment monitoring.
• Ensures filtration efficiency, regulatory compliance, and safe water quality.

How It Works

1. Sample Flow – The water sample continuously enters the optical cell.

2. Light Scattering – An LED source illuminates the sample, and particles scatter the light.

3. Detection – A precision sensor measures the scattered light intensity to determine turbidity.

4. Automatic Optimization –
   • Optical wiper removes deposits.
   • De-bubbler eliminates air bubbles that disrupt readings.

Components

4690 Sensor – Main turbidity sensing unit with advanced optics.
Compatible Transmitter – Often paired with the ABB AWT420 dual-input transmitter for local display, control, and plant integration.

Shop the ABB 4690 Series from WOW Electricals — a leading ABB Supplier, Dealer & Distributor in Oman, Qatar, Egypt, Saudi Arabia & Dubai UAE.
Get the best price online and order now at www.wowelectricals.com.