FAQ
- Q:Can Predect’s system detect if bacteria has contaminated the water?
A: Yes. With our existing P-300 system we detect immediately of the changes in the water quality in terms of micro-contaminants,and it includes bacteria. As we know the characteristics of bacteria we can reliably detect when bacteria is present even the smallest concentration as contamination. However, we cannot determine the exact amount of bacteria.
- Q:Can the online system identify the kind of bacteria or parasites automatically online?
A:Currently Predect online system is not able to determine the type of bacteria or parasites e.g. E-coli or Cryptosporidium. The analysis is done offline.
- Q: Why do you need to perform a pre-study?
A: It is because water profiling is a critical part of the Predect Online Water Protection System because the Predect software is then adjusted to the unique footprint to each water system. This ensures the highest system reliability in terms of reducing the risk of false positive alarms and false negative alarms.
- Q:What will decide the length of the pre-study?
A:The length of the pre-study depends on the various water conditions, including both pollution degre and other parameters, such as pH, turbidity, conductivity etc..Pre-study as an extra service offering to its customers is only aiming to enable the online monitoring system benefit customers to the largest extent without any unnecessary extra cost.
- Q: What is a false positive alarm? How does the system deal with false positive alarms?
A: A false positive alarm is an alarm triggered when the water is not contaminated. Predect system rely on an empirical database gathered in a controlled (lab) environment rather than real environment which can lead to unreliable results.
- Q: What is a false positive alarm? How does the system deal with false negative alarms?
A: A false negative alarm is an alarm that is not triggered even though the water is indeed contaminated. By fine tuning the system to detect such low quantities, the risk of false negatives can be minimized especially in water systems that have higher concentrations of micro-contaminants.