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INDUSTRIAL PROCESS CONTROLLER ORP AND pH STANDARDS Walchem Corp. Hawk Creek Laboratories Inc. www.walchem.com www.hawkcreeklab.com Walchem Corp. introduces the WebMaster GI General Industrial Controller. The WebMaster GI combines Walchem’s industrial pWORP and con- ductivity product lines with the proven WebMaster communications platform. Walchem’s patent-pending ShoulderTap Server-On-Demand technology provides instant real-time access to the WebMaster GI controller when needed, with- out the need to be permanantly connected to the Internet. ShoulderTap allows simultaneous multiuser access and eliminates long distance phone calls and proprietary software. WebMaster GI offers 4 sensor inputs (any combination of con- ductivity, pH or ORP), 8 analog inputs, 9 digital inputs, 4 analog outputs, 8 relays, and can be con- figured to match your system’s requirements. Hawk Creek Laboratories offers a full line of ORP standard solutions and pH buffers for cal- ibrating and for checking system accuracy and performance. All of the standard solutions are prepared using NIST traceable, reagent grade chemicals per ASTM or APHAfStandard Methods procedures. The pH buffer (4.00, 7.00, and 10.00) are certified NIST traceable and are quality packages for a 2-year shelf life. The ORP standards [Quinhydrone/Buffer 4 (263 mV) and 7 (86 mV), ZoBell’s (228 mV), Light’s (475 mV), and modified ZoBell’s and Light’s at 200, 400, and 600 mV1 are manufactured and certified per ASTM D 1498. The standard solu- tions are available in 500-mL, l,OOO-mL, 4-liter, and 20-liter packaging. Circle 154 on reader information card Circle 155 on reader information card WATER QUALITY INSTRUMENTS Myron L Co. www.myronl.com The Myron L Co. manufactures a comprehensive line of hand-held and inline instruments that measure a variety of parameters. The Controlstik Rinse Tank System dramatically reduces water consumption by up to 85% in continuous flow rinse tanks and automatically maintains optimum water purity and ensures effective rinsing. I Circle 156 on reader information card December 2003 19
