Campbell Scientific acquires Sirco water-sampling systems range

Campbell Scientific has acquired the Sirco range of water-sampling systems that can be used to monitor water quality, including stormwater, wastewater, groundwater sampling and other water-quality monitoring applications.

A feature of the Sirco sampling systems is that they use external vacuum pumps to draw water through intake tubing, instead of the traditional peristaltic pumps that induce flow by squeezing flexible tubing. Advantages of the vacuum-pump method include faster sampling rates, better vertical lifts, longer sampling distances, more-precise volume control between samples and less maintenance. Because the vacuum method disturbs water samples less, they better represent the original water solution, especially if the solution has high concentrations of suspended solids. To prevent cross-contamination, the samplers use air pressure (up to 28 psi) to purge the tubing of excess water.