pH- and ORP measurement with standard electrodes - Martens ...
pH- and ORP measurement with standard electrodes - Martens ...
pH- and ORP measurement with standard electrodes - Martens ...
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22Value <strong>pH</strong> 2.7621.2°C11sMeasuring of the 1. bufferThe next parameter will be selected if the measuring value is constant. During themeasuring process, it is possible to stop the <strong>measurement</strong> <strong>with</strong> button at any time<strong>and</strong> the current value will be stored. The calibration accuracy is reduced.Value not const.Qnext Obacknext ► parameter 23back ► parameter 2223<strong>pH</strong>-electrodeout of operationBuffer <strong>pH</strong> 4.01Difference <strong>pH</strong>-1.24sDeviation of zero-point ><strong>pH</strong>3.0.The electrode must be replaced.Measurementmay be faultyback to parameter 1page 10The calculated buffer <strong>and</strong> the difference to the measuredvalue are displayed.The message " <strong>measurement</strong> may be faulty " appears,if the deviation ><strong>pH</strong>2.0.Abort calib.?QYESONOIf the difference exceeds ><strong>pH</strong>2.0, the calibration can be stopped.Parameter zero-point <strong>and</strong> slope are not changed.YES : continue page 10, process displayNO : continue parameter 24242.buffer calib.OYES QNOYESNO: 2-point-calibration.A 2. buffer solution has to be measured.: 1-point-calibration.The calibration procedure is finished25YESDip <strong>pH</strong> electrodeinto 2.bufferNOcontinue page 15parameter 32Rinse the electrode in tap water <strong>and</strong> immerse in the 2. buffer solution.Start the calibration <strong>with</strong> button .26Manual temperature inputEnter temp.22.0°CManual temperature inputof the buffer solution.27Automatic temperature <strong>measurement</strong>2.buffer temp.22.7°C /Temperature measuring of the 2.<strong>pH</strong>-buffer solution.A rotating bar indicates the measuringprocess. It is possible to stopthe <strong>measurement</strong> during the measuringprocess, <strong>with</strong> button atany time <strong>and</strong> the current value willbe stored.continuepage 15Temp.not const.Qnext Oback- 14 -next ► parameter 28/29(reduced accuracy)back ► parameter 27
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