LINEAR POLARIZATION RESISTANCE (LPR) INSTRUMENT
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LINEAR POLARIZATION RESISTANCE (LPR) INSTRUMENT 9030 Plus Features  Corrosion Rate, Imbalance and Temperature Measurements  Solution Resistance Compensation For Increased Operation Range  One or Two Channels  Data Logging with CORRDATA® Plus Software  Isolated 4-20 mA Outputs  Weatherproof Enclosure  The 9030 Plus Linear Polarization Resistance Instrument is a corrosion rate system designed for cooling water, process water, and feed water systems. It is available with one or two channels of corrosion rate, imbalance, and temperature data for rapid response to process upset conditions. Two‐ channel operation allows for the monitoring of two alloys at a time, for example, mild steel and a copper‐based alloy (found in many plant systems). The 9030 Plus LPR Instrument's patented Solution Resistance Compensation uses Electrochemical Impedance Spectroscopy (EIS) to improve the accuracy and extend the range of Linear Polarization Resistance (LPR) corrosion monitoring, increasing the operating range up to 20 times more than competitive instruments. This greatly improves the applicability of the instrument for monitoring lower‐ conductivity waters and provides superior performance over standard three‐electrode systems. In addition, the 9030 Plus LPR Instrument takes a sample of Electrochemical Current Noise (ECN) between the electrodes, and displays the ECN data as The 9030 Plus LPR Instrument is capable of imbalance. The imbalance current is related to pitting, corrosion activity and inhibitor film stability. monitoring temperature when a LPR Temperature probe is used instead of a LPR probe. The data logging function is activated through a RS‐232 serial port directly from a laptop or desktop PC using CORRDATA® Plus Software. The software is Windows® XP Pro/Vista Business/Vista Ultimate compatible. Features of the software include:  Powerful graphical displays  Easy analysis to calculate average corrosion rates  Graph annotations  Easy transfer of graphs to word processing programs Six electrically isolated

Specifications Single Channel Non-operating Region Operating Region Conductivity (^S/cm or pmhos/cm)

Ordering Information Model Description 9030 Plus Corrosion Rate/Imbalance/Temperature LPR Instrument Code Corrosion Rate Channels 1 One LPR Dual Sensor Temperature Channel 2 Two LPR Dual Sensor Temperature Channels Code Supply Voltage 115 115 Vac, 50/60 Hz 230 230 Vac, 50/60 Hz 9030 Plus 2 115 Typical Order Number ...