pH- and ORP measurement with standard electrodes - Martens ...

Manual calibration15Sel. buffer setWTW Buffer setnominal pH-values of the buffersWTW4.01/7.00 at 0...95 °C/10.00 at 0...50 °CSchott4.00/7.00/10.00 at 0 ... 40 °CIngold (Mettler Toledo) 4.01/7.00/9.21 at 0 ... 95 °CDIN192664.01/6.87/9.18 at 0 ... 95 °CSpecial buffer Manual buffer input16Temp. for Calib.OMan QPt100/1000Selection of the temperature measurement.For calibration of pH-electrodes without integrated temperature sensor, selectMan and use an ext. thermometer.17Dip pH electrodeinto 1.bufferRinse the electrode in tap water and immerse in the 1. buffer solution.Start the calibration with button .18Manual temperature inputEnter temp.22.0°CManual input of theof the buffer soulutiontemperatureTemperatureconstant19Automatic temperature measurement1.buffer temp.21.2°C /Temperaturenot constantTemperature measurementof the 1. pH-buffer solution.A rotating bar indicates themeasuring process. It is possibleto stop the measurementduring the measuringprocess, with button atany time and the current valuewill be stored.Temp.not const.Qnext Obacknext ►Parameter 20/21(reduced accuracy)back ►Parameter 1920Buffer setSelect 1.buffernom. val. pH 4.001.Buffer selection21Special buffer1.buffer at21.2°C-> pH 4.01Input of the buffer value accordingto the pH/temperaturetable.Buffer temp.to lowback to parameter 1page 10$ The measured values arenot taken overcontinuepage 14- 13 -