7.1.4 Oxygen measurement configuration .......................................................................... 24
7.1.5 Calibration methods .................................................................................................. 25
7.1.6 One-point calibration sequence ................................................................................. 26
7.1.7 Two-point calibration ................................................................................................. 26
7.1.8 Calibration of zero point – detailed procedure ........................................................... 27
7.1.9 Calibration of the final point - detailed procedure ...................................................... 28
7.1.10 Error calibration – message .................................................................................... 29
7.2 Digital sensor for measuring nephelometric turbidity ....................................................... 30
7.2.1 General information about the turbidity probe ........................................................... 30
7.2.2 Setting / configuring of displayed measurements ...................................................... 31
7.2.3 Sensor information .................................................................................................... 33
7.2.4 Configuration of the nephelometric turbidity measurement ........................................ 33
7.2.5 Method for calibrating nephelometric turbidity ........................................................... 34
8 Controller adjustments .......................................................................................................... 37
8.1 Allocation of controller values .......................................................................................... 37
8.2 Controller action direction ................................................................................................ 37
8.3 Assignment of controller output ....................................................................................... 37
8.4 Pulse frequency .............................................................................................................. 38
8.5 Checking the pulse frequency ......................................................................................... 38
8.6 Minimum pulse ................................................................................................................ 39
8.7 Controller parameter settings .......................................................................................... 39
8.7.1 Standard point adjustment ........................................................................................ 40
8.7.2 Proportional band (P band) ....................................................................................... 40
8.7.3 Integral action time (integral gain) ............................................................................. 40
8.7.4 Hysteresis ................................................................................................................. 40
8.7.5 Max./min. limit value ................................................................................................. 41
8.7.6 Alarm period ............................................................................................................. 41
8.7.7 Dosage monitoring .................................................................................................... 41
8.8 Manual operating mode ................................................................................................... 41
8.8.1 Manual controller mode ............................................................................................. 41
8.8.2 Automatic controller mode ........................................................................................ 42
8.9 Date and time .................................................................................................................. 42
8.10 Analog outputs .............................................................................................................. 42
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