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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28Buffer setSelect 2.Puffernom.val. <strong>pH</strong> 7.00Special buffer292. buffer selection Input of the buffer value acc. to2.buffer atthe <strong>pH</strong>/temperature table.22.7°C-> <strong>pH</strong> 7.02Buffer temp.to lowBuffer temperatureout of range.Same inputas buffer 1Difference1. buffer to 2. buffer< <strong>pH</strong> 1.0.back to parameter 1page 10$ The measuredvalue are not takenover.30Value <strong>pH</strong> 5.6122.7°C15sMeasuring of the 2.bufferThe next parameter will be selected if the measuring value is constant. During the measuringprocess, it is possible to stop the <strong>measurement</strong> <strong>with</strong> button at any time <strong>and</strong> thecurrent value will be stored. The calibration accuracy is reduced.Value not const.Qcont. Obackcont. ► parameter 31back ► parameter 30Same bufferor short circuitDifference from 1.buffer to2.buffer is to small.$ The measured valueare not taken over<strong>pH</strong>-electrodeout of operationDeviation of zero-point ><strong>pH</strong> 3.0 orslope<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 : back to the process display page 10.NO : continue parameter 32.32Zero <strong>pH</strong> 8.49Slope 55.9mV/<strong>pH</strong>The manual calibrieration is finished.The electrode values are displayed <strong>and</strong> should be recorded.back to the process displaypage 10- 15 -
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