PERISALTIC WATER SAMPLER WS750
Our new WS750 two-bottle wastewater samplers combine all the features you need to meet a wide variety of sampling requirements, including those for stormwater, industrial discharge, water and wastewater treatment, waste collection systems, and rivers and streams.
The WS750 wastewater/ stormwater sampler' s state of the art controller gives you complete control over your wastewater/ stormwater sampling process. With the wastewater/ stormwater sampler' s sample size control, you can take individual time-weighted composite samples or full-bottle discrete grab samples. The wastewater/ stormwater sampler' s sample interval control allows you set the time between individual composite samples or enable the external trigger mode. A start delay timer allows you to start multiple wastewater/ stormwater samplers in the field at the same time, or to delay drawing a wastewater/ stormwater sample after a triggering event so that your sample better represents the water source. An automatic15 second backflush cycle clears any debris from the wastewater/ stormwater sampler' s strainer and empties the water from the hose so the next sample is not contaminated.
A unique feature of the WS750 stormwater/ wastewater samplers is the ability to set the sampling mode for each pump and bottle individually. This allows you to take two individual time-weighted or flow proportional composite samples, or you can set the stormwater/ wastewater samplers to take full-bottle discrete ( grab) samples, or you can set the stormwater/ wastewater samplers to take a full-bottle discrete ( grab) sample in one bottle and a time-weighted or flow proportional composite sample in the other. In the case of two composite samples you can have different size settings for each pump.
The WS750 stormwater/ wastewater samplers are easy to set up in the field. The stormwater/ wastewater samplers rugged rainproof enclosure can be padlocked and/ or chained to prevent tampering. The stormwater/ wastewater samplers are enclosed in a relatively small case that can be easily hidden or camouflaged to prevent vandalism. The stormwater/ wastewater sampler' s is lightweight enough that even with a full sample bottle it can be suspended in a manhole for stormdrain or sewer sampling.
The WS750 wastewater/ stormwater samplers come with two 1-gallon polyethylene sample bottles for collecting composite samples, two peristaltic sampling pump, a circuit board controller, and a rechargeable gel cell battery. Also provided are two sample pickup hoses and a battery charger. Everything you need is provided for a successful wastewater management or environmental monitoring program.
The composite/ discrete water sampler' s 5 AH rechargeable battery will power the sampler for several months or a half hour of continous sampling with both pumps.
The wastewater/ stormwater sampler' s sample bottles are each equipped with a float switch that automatically turns off the peristaltic sampling pump if the water bottle becomes full.
The user can adjust the wastewater/ stormwater sampler' s peristaltic pumps individually to one of 15 composite sample sizes from 50ml to 2 liters plus a full bottle discrete setting. The wastewater/ stormwater sampler' s peristaltic pumps can be set to a single sample time interval from 5 minutes to 12 hours plus an external trigger mode setting for flow proportional sampling.
Flow Proportional Sampling
An external pulse-type flow meter can control the water sample interval for true flow proportional sampling. Global Water' s Open Channel Flow Monitor has a flow-proportional output signal for triggering the WS750 wastewater/ stormwater samplers. If you already have a flow meter but it has a 4-20mA output, please look at the related products section of the Wastewater/ Stormwater Samplers Options & Prices section