Metrohm 781 pH/Ion Meter

The 781 pH/Ion Meter is a high end ph/Ion meter with a wide range of capabilities. In addition to the general pH, ion, potential and temperature measuring functions, the 781 pH Meter is equipped with automatic stirrer control, multipoint calibration with up to 9 buffers (pH mode), a method memory and various monitoring functions for calibration and service. The automatic GLP-compliant electrode test for pH glass electrodes allows an objective evaluation of the electrode and leaves nothing to chance. Reliable and reproducible results are therefore guaranteed. The large backlit multiline display provides a good overview and makes individual settings easier. The bidirectional RS 232 interface permits data transfer to a printer or PC. A sample changer can be connected via the optional 6.2148.010 Remote Box.              

Three different modes are available for ion measurement: direct measurement, standard addition or sample addition. With fully automatic standard addition using an optional Dosimat only the concentration of the standard and the required number of addition steps needs to be entered, the pH/Ion Meter takes care of the rest. Up to 19 standards can be used for calibration for direct measurements.