General Catalog

Measuring instruments
781 pH/Ion Meter
The 781 pH/Ion Meter offers numerous possibilities
for pH and ion measurement at the highest level. In
addition to the general pH, ion, potential and temperature
measuring functions, the 781 pH Meter is
equipped with automatic stirrer control, multi-point
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 multi-line 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.
Ordering information
2.781.0010 781 pH/Ion Meter
Options
2.140.0200 Impact printer CUSTOM DP40-S4N
2.801.0040 801 Magnetic Stirrer with stand
2.802.0040 802 Propeller rod stirrer for 804 Titration
stand
2.804.0040 804 Ti Stand with stand
6.2134.110 Cable RS232 DB9 f - DB9 m
6.2148.010 Remote Box MSB
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.
781 pH/Ion Meter
— pH