Xylem WS700R REFRIGERATED WASTEWATER SAMPLER - Manual (Page 4)

Global Water
800-876-1172
• globalw.com
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III. Description
The Global Water WS700R Sampler is designed specifically to meet a wide
variety of sampling requirements where refrigeration is required; including
industrial discharge, process control, water and wastewater treatment plants,
sewers, rivers and streams.
The WS700R Sampler can take individual “time weighted” composite samples, or
it can be set to take a full-bottle discrete or “Grab” sample. This is accomplished
with a Sample Size control having one position being reserved for “Full” bottle. A
Sample Interval control sets the time between individual composite samples and
has a provision for allowing the sampler to be triggered from external sources.
A Start Delay timer can be set to start sampling after a preset time. This allows
multiple samplers to be deployed in the field and have them turn on at the same
time. The delay can also be used to hold off sampling to let the water source
flush out debris or other contaminants.
After each sample, the pump will reverse for 15 seconds. This clears any debris
from the strainer at the end of the pickup hose and also empties water from the
hose so the next sample is not contaminated by the previous one.
Inputs are provided for triggering the sampler based on water level, a rain gauge
sensor or a signal from an external process controller or other monitoring device.
An output is also available for monitoring when the pump is taking samples, using
a data logger or similar recording device.
The WS700R Sampler is easily set up near industrial discharges or streams. It
can also be suspended in a manhole for sewer flow sampling. The sampler
consists of a rugged, rainproof and lockable carrying enclosure. The enclosure
houses a peristaltic sampling pump, sample bottle, a control panel, and a
rechargeable battery. A battery charger and sample pickup hoses are also
provided.