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Anleitung Omega Engineering, modell CDE-45P

Hersteller: Omega Engineering
Dateigröße: 1.86 mb
Dateiname: M3696.pdf
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Anleitung Zusammenfassung


3 1.2 Sensor Features....................................................................................................................................... 3 1.3 Sensor Specifications (CDE-45P)............................................................................................................ 4 Figure 1-1 CDE-45P Sensor Dimensions (standard, convertible style)............................................................ 4 PART 2 – INSTALLATION................................................................................................................................ 5 2.1 General................................................................................................................................................... 5 Figure 2-1 CDE-45P Sensor Types.................................................................................................................. 6 2.2 Electrical ................................................................................................................................................ 7 Figure 2-2 Cable Description, Model CDE-45P............................................................................................ 7 Figure 2-3 Wiring Diagram, CDE-45P Sensor and CDTX-45 Monitor/Analyzer ........................................... 8 PART 3 – SENSOR MOUNTING ....................................................................................................................... 9 3.1 Cleaning the Sensor ................................................................................................................................ 9 3.2 Troubleshooting.................................................................................................................................... 10 -2- Omega CDE-45P Conductivity Sensor Part 1– Introduction Part 1 -Introduction 1.1 General 1.2 Sensor Features The Model CDE-45P Conductivity Sensor measures the conductivity of aqueous solutions in industrial and municipal process applications. It is designed to perform in the harshest of environments. All seals are dual o-ring using multiple sealing materials. The sensor is designed for use with the Omega CDTX-45 Monitor/Analyzer. • 4-Electrode measurement system. Two of the electrodes are used to establish the sensor drive potential, while the other two sense the flow of current between the drive electrodes and maintain proper drive potential. In conventional 2-electrode sensors, as the process solution coats the electrode surfaces, the sensor output signal begins to decrease, producing an artificially low conductivity measurement. The Omega 4-Electrode system thus offers a high degree of accuracy for a longer period of time. The four electrodes are made of titanium for greater chemical resistance. • The Omega 4-Electrode system compensates for the Effects of electrode fouling. As the electrodes become coated by the process solution, a feedback Mechanism detects the decrease in drive potential and automatically re-establishes the proper levels. When coating is such that compensation is no longer possible, and alarm signals the user that the sensor requires cleaning. The system also alerts the user in the event of integral temperature element failure. • The Omega 4-Electrode system allows a single Sensor configuration to be used reliably over a wide Conductivity range. There is no need for multiple sensors with varying cell constants that are restricted to narrow operating ranges. • Pt1000 RTD. The temperature element used in this Sensor is highly accurate and provides a highly linear output. O&M Manual -3 Omega CDE-45P Conductivity Sensor Part 1– Introduction 1.3 Sensor Specifications (CDE-45P) Measuring Range 0.000 to 2.000 S/cm Wetted Materials Titanium, PEEK, FKM, EPR (316SS when sensor is submersion mounted) Temperature Compensation Pt1000 RTD Sensor Cable 6 Conductor plus 2 shields, Temperature Pressure Range The choice of sensor material/ mounting option and the hardware used to mount the sensor will determine the temperature and pressure ratings. Please consult the factory for relevant temperature and pressure rating information. Maximum Flow Rate 10 feet (3 meters) per second Max. Sensor-Analyzer Distance 60 feet (18.2 meters) Weight 1 lb. (0.45 kg) Inches (mm) Figure 1-1 CDE-45P Sensor Dimensions (standard, convertible style) O&M Manual -4 OMEGA CDE-45P Conductivity Sensor Part 2– Installation Part 2 – Installation 2.1 General The CDE-45P Conductivity Sensor is designed for industrial and municipal process applications. Mounting options include flow-through, submersion, insertion (special hardware required), or integral mount to the CDTX-45 Conductivity Monitor/Analyzer. The sensor-to-analyzer distance must not exceed 60 feet (18.2 meters). Calibrate the sensor before placing it into the process. See Model CDTX-45 Monitor/Analyzer Instruction Manual for detailed calibration instructions. The sensor comes with a removable guard that surrounds the electrode face...


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