Call 800.959.0299 to speak with a sales representative or visit us on the web at www.analyticaltechnology.com Model Q45C2 ATI’s 2-Electrode Resistivity Transmitter provides the reliable and accurate low-level measurements required for such high-purity water systems. Monitors provide large, easy-to-read LCD displays with a second display line for indication of temperature or other operational information. For those applications where results in resistivity units are preferred, Q45C2 monitors can be programmed to display readings in Meg-ohm units instead of microSiemens. The monitor employs 2-Electrode conductivity sensors with low cell constants to provide continuous measurements from 0-20 to 0-2,000 microSiemens. The 2-Electrode sensors are specifically designed for use in ultra-pure water and nonfouling applications. The sensors are available in several mounting configurations including 316SS compression fittings or sanitary-style. These sensors may also be mounted submersion-style or in a hot-tap configuration. Applications Reverse Osmosis Systems Boiler Feed Water Pharmaceutical Water Desalination Systems Sensor Options Deionization Systems Return Condensate Semiconductor Water Display in conductivity or resistivity units Loop-powered or battery-operation External 5-17 VDC version for solar power applications Accepts 0.05, 0.5, or 1.0K cell constant sensors Titanium or 316ss electrodes for corrosion resistance Submersion, In-line, or sanitary-style sensors Large, easy-to-read LCD display Total dissolved solids (TDS) on secondary display Clear, menu-driven user interface NEMA 4X (IP-66) enclosure Wall or pipe mounting bracket standard Built-in PID controller In-Line Sensor Submersion Sensor

Q45C2 SPECIFICATIONS ELECTRONIC MONITOR ORDERING INFORMATION Display Range Temperature Drift Sensor Type Two-Electrode, 0.05K, 0.5K, or 1.0K cell constant Temperature Input Either Pt1000 or Pt100 for temperature compensation 2- Wire unit: 17-30 VDC, 25 mA maximum Battery unit: Two AA alkaline batteries External DC: 5-17 VDC, 10 mA maximum Analog Outputs 2-Wire unit: Single 4-20 mA DC, 450 ohms maximum Battery unit: Two 0-2.5 VDC, 50K ohms minimum External DC: Two 0-2.5 VDC, 50K ohms minimum Output Isolation NEMA 4X (IP-66) Polycarbanate, V-0 flammability Mounting Options Wall or pipe mounting...