AUTOSAMPLER FOR MONITORING WELLS

The Mini-Diver provides reliable automatic measurement and registration of groundwater level and temperature data. Measuring 22 mm in diameter and 90 mm in length, it is a great choice for virtually any monitoring well. The autosampler has an impressive internal memory capable of storing 24,000 measurements per parameter – essentially one measurement every 10 minutes for six months. For each measurement, the Mini-Diver simultaneously registers groundwater level, groundwater temperature, date and time.

Waterloo Hydrogeologic Inc., a Schlumberger Company
Waterloo, Ontario
(519) 746-1798, ext. 293
Fax. 519/885-5262
www.waterloohydrogeologic.com
Circle No. 218

In-Line TOC Monitor

The stand-alone Total-Check 900 in-line TOC monitor can be connected to any high-purity water laboratory system to provide an accurate measurement of product water TOC (total organic carbon) levels from 1 to 999 ppb with repeatability of plus or minus 5 percent and accuracy of plus or minus 1 ppb. Available in North America and Europe, it is designed for laboratory personnel who need to measure the TOC in high-purity water produced by systems that do not feature a built-in monitor.

Siemens Water Technologies
Lowell, Mass.
(800) 875-7873, ext. 5000
www.Siemens.com
Circle No. 219

Programmable Automatic Switchover Manifold

The Model 8404E is an electronic, programmable switchover manifold for use with compressed specialty gases. This fully automatic manifold controls gas delivery from two independent banks of high-pressure cylinders. It features an integrated circuit that electronically monitors and displays cylinder bank pressure as well as delivery pressure. Changeover between banks occurs automatically when one bank is depleted.

Scott Specialty Gases
Plumsteadville, Pa.
(800) 21-SCOTT
www.scottgas.com
Circle No. 220