LAR’s toxicity analyzer ToxAlarm continually monitors drinking and surface water for pollutants. Whether by accident, negligence or with intention – it only takes a small amount of a harmful substance to pollute a large amount of water such as rivers, lakes, dams, as well as, drinking water reservoirs. Therefore, it should be continually monitored. Potential toxins in water are determined through the reaction of highly sensitive bacteria. The measurements follow at intervals of less than 5 minutes. Thus allowing enough time to introduce countermeasures after the occurance of pollution.

Features and Benetits
• Measurement range: 0-100% Toxicity
• Response time: 5-10 minutes (application dependent)
• Continuous monitoring of toxicity
• Self-regenerating bacteria within toxicity analyzer
• High reproducability
• Low operational costs
• Low maintenance
• No purchase of test organisms necessary
• According to DIN EN ISO 9509:2006

Applications
LAR’s toxicity analyzer is suitable for environmental protection for a variety of types of water:
• Surface water monitoring
• Drinking water protection
• Ground water protection

Measurement Technique and Sample Preparation
Measurement Method Determination of toxicity through the measurement of oxygen conversion
Measurement Compliance According to DIN EN ISO 9509:2006
Measurement Ranges 0-100 % Toxicity
Sensitivity 0% Toxicity
Oxidation Principle Determination of inhibition of respiration with nitrifying bacteria
Accuracy 10-15% Toxicity
Repeatability 10-15% Toxicity
Cycle Time 12-15 Min
Response Time 5 Min (application dependent)
Bacteria Culture Nitrififiers
Particle Size Soft particles max. 2mm
Temperature and Humidity
Permissible Sample Temperature 5 – 25°C / 41°F – 77°F
Ambient Temperature recommended 10 – 25 °C / 50°F – 77°F
Ambient Air Humidity Max. 80% (non condensing)
Dimensions and Weight
Housings Steel, coated with powder paint, IP54 (further on request)
Dimensions W 630 x H 1265 x D 580 mm
W 49.8″ x H 24.8″ x D 22.8″
Weight 70 kg / 154.3 lbs approx.

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