OTT ecoN Manuals

Operating instructions UV Nitrate Sensor OTT ecoN English Technische Änderungen vorbehalten! Contents 1 Scope of supply 5 2 Order numbers and version code 5 3 Basic safety instructions 7 4 Introduction 8 5 Installing the OTT ecoN 10 5.1 Installing in an observation well 11 5.2 Installing with fastening clamps 12 5.3 Installing on a float 13 5.4 Electrical connection 14 6 Setting the operating parameters 15 6.1 Connecting the OTT ecoN to a PC 15 6.2 Calling up the OTT ecoN web interface 16 7 Modbus protocol (RTU) 18 7.1 Prerequisites 18 7.2 "Read Holding Registers" (0x03) / "Write Multiple Register" (0x10) functions 18 7.3 "Write Single Registers" function (0x06) 19 7.4 "Report Server ID" function (0x11) 19 8 Maintenance 20 8.1 Cleaning the OTT ecoN 20 8.2 Checking the OTT ecoN zero point 21 8.3 Calibrating the OTT ecoN 22 8.4 Checking OTT ecoN reference values 23 9 Repairs 24 10 Notes about the disposal of old units 24 11 Technical data 25 12 Measuring range, limits, accuracy depending on path length 26 Appendix A – Dimensions 27 Appendix B – Accessories: Mechanical wiper 28 B1 – Preparing the mechanical wiper 29 B2 – Installing the mechanical wiper on the OTT ecoN 31 B3 – Electrically connecting the mechanical wiper 31 B4 – Changing the wiper blade 33 B5 – Mechanical wiper technical data 34 Appendix C – Note on Declaration of Conformity 35 3