USA drinking water gets better analysis
The Hach company of the USA has launched a series of new instrumentation in this third quarter of the year.
The company’s ISE CSA610 on-line fluoride analyser offers constant fluoride
monitoring for more precise management of drinking water. The instrument’s low-reagent
consumption, combined with its ability to calibrate automatically, enable it
to run unattended for up to 30 days.
The CA610 measures fluoride concentrations ever 4.2 minutes, 24 hours/day and
requires only 500ml of reagent over a 30-day period. Reagents and standards
are fully enclosed in a case that is rugged, compact and corrosion-resistant
– making it ideal for monitoring at remote locations.
USA turbidity innovations
Hach’s new AquaTrend firmware has been created specifically to enable US water
treatment plants comply with the EPA’s latest requirement for turbidity monitoring,
providing data logging every 15 minutes for a full 30 days – thus exactly meeting
the EPA specification which requires water plants to monitor filters individually.
Violations are based upon 2 consecutive readings at 15 minutes apart.
AquaTrend compresses and stores data automatically, thus eliminating the need
for an on-site data logger or computer and for those customers who already use
Hach firmware, upgrading to Version 4.0 is a simple procedure.
The company’s new APA 6000 Low Range Ammonia Analyser has a high-sensitivity
operating range – 0.02-2.00mg/L as N – and low reagent consumption for full-time
monitoring in drinking water and power plants.
The APA 6000 uses a modified Phenate method to colourmetrically monitor free
ammonia with laboratory accuracy – enabling water quality managers to control
pH levels in boiler water and monitor ammonia levels in drinking water influent.
Using Hach’s patented CSIA (Carrierless Sequential Injection Analysis), the
APA 6000 Analyser can handle fresh samples every five minutes, using less than
1L per reagent, per month. Data is
displayed in a numerical or graphical format, with the capability for
showing units in terms of N or NH3.
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