Friday, 22 May 2015
Clients who need regular water sampling will be pleased to learn that SESL has invested in its first automated water sampler. The Global Water WS700 sampler is a set-and-forget device that looks like a Globite suitcase and can be set up in the open or indoors to collect regular water samples for later analysis.

Inside the grey plastic weatherproof case, most of the space is taken up by a 9-litre plastic container, which stores the composite samples. A lead acid gel battery powers the electronics and a powerful pump. Switch settings allow the operator to select the sampling interval (from 5 minutes to 12 hours) and the sampling volume (from 50 mL to fill-'er-up).

Although the sampler is designed for use as a timed sampler for monitoring rivers, some of SESL's clients need a volume-based sampler for monitoring waste outputs, which can vary by time of day. So SESL has ordered an attachment to allow the sampler to read outputs from flow control devices in water treatment plants. The sampler will then offer the additional option of sampling by flow rate (for example, one sample every cubic metre or every kilolitre).

The sampler is the first of several that SESL plans to invest in to broaden our capacity to collect composite samples from a range of sites. Read More

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