Single and Dual Input Dissolved Organics Monitor

Product catalog summary

Overview: The document provides detailed information on the AV400 Series Dissolved Organics Monitors, including models AV410, AV411, AV420, AV412, and AV422. These monitors are designed for continuous online monitoring of dissolved organic carbon (DOC) in potable water treatment plants, offering cost-effective solutions for water quality management.

Key Features:

Dual Input Capability: Supports two measurements from one instrument, accommodating both high and low range inputs.
Surrogate Color Measurement: Reduces maintenance requirements, leading to significant operational cost savings.
THM Precursor Alert: Provides advanced warning of increased risk of trihalomethanes (THMs) development.
Automatic Turbidity Compensation: Minimizes initial capital expenditure and operational costs.
Reagentless Operation: Significantly reduces operational expenditure.
On-line Diagnostics: Includes features such as cleaner failure alerts, loss of signal, and out-of-sample notifications.

Specifications:

Sensor Range: Low range (0 to 20 mg/l C) and high range (0 to 100 mg/l C).
Linearity and Reproducibility: ±2% of reading or specified minimums for both ranges.
Response Time: Typically three minutes for a 90% step change.
Lamp Life: Rated for 10 years of continuous operation.
Maintenance: Minimal, with periodic calibration and annual wiper blade replacement.

Applications:

Coagulation Control: Functions as a surrogate color monitor for humic and fulvic acids in raw water.
Algal Bloom Monitoring: Provides early warning of algal bloom toxins, allowing for timely intervention.
THM Risk Management: Monitors DOC to prevent THM formation during water treatment.

Installation and Maintenance:

Installation: Comes with a wall-mount bracket for easy sensor installation.
Maintenance: Features an auto-cleaning mechanism and requires minimal manual intervention.

Technical Specifications:

Power Supply: 85 to 260V AC or optional 9 to 36V DC.
Environmental Limits: Operating temperature from 0 to 50°C, storage from -25 to 75°C.
Outputs: Two fully isolated current outputs, configurable for various parameters.

Conclusion: The AV400 Series monitors provide a robust, cost-effective solution for monitoring dissolved organics in water treatment, enhancing process control and reducing operational costs.

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