pH Control System Norcross Corp. Newton, Mass.

Features of the Norcross pH control system include easy integration with existing viscosity controls or other computer control systems; damage-resistant sensor; con- tinuous, in-tank measurement and control; and long distance data transmission capability for remote process- ing/reporting.

Circle 154 on reader information card

pHIORP Ground Loop Interrupt Electrodes Sensorex Inc. Stanton, Calif.

Sensorex offers a problem-solving ground-loop inter- rupt electrode. An electrical ground loop exists when electrical voltage in solutions being measured flows through the reference side of a combination pH electrode causing inaccurate readings or shorl electrode service life. Sensorex's ground-loop interrupt electrodes combat these problems by utilizing a solution ground and inter- nal battery powered ground interrupt preamp circuit. Electrodes are available for in-line or submersion mounting.

Circle 155 o n reader information card

pH/ORP Analyzer GLI International Inc. Milwaukee, Wl

GLI International Inc. introduces the Model P53 pH/ ORP analyzer, a compact, full-featured yet easy-to-use analyzer, which offers benefits usually found in only larger, more expensive analyzers. The Model P53 can accept many different types of pH/ORP sensors---GLI Differential sensors, conventional electrode pairs, or standard combi- nation electrodes. Its large backlit LCD gives the measured pH, process temperature, and two analog outputs. Menu screens contain up to six full lines of text to logically guide the user through setup, calibration, and operation. Its pow- erful firmware enables multilanguage operation.

Circle 156 on reader information card

pH Controller Bamant Co. Barrington, IlL

The Barnant HD-PH/P is an automated, self-proportion- ing pump/pH controller designed to start at maximum flow, gradually decreasing flow as the pH value nears the set point. It provides a fully automated flow-control feature not found on other types of pH pumps and controllers. The HD-PH/P pump/pH controller allows greater fine-tune con- trol for critical applications. These units include a temper- ature-compensation trimmer, a liquid-level control input, and a utility input connector specifically fi3r an alarm.

Circle 157 on reader information card

METAL FINISHING • March 1998 © Copyright Elsevier Science Inc. 21