781 pH/Ion Meter

Determine Ion Concentrations at the Highest Level of Comfort

Easy and comfortable

With the 781 pH/Ion Meter you can measure pH values and determine the content of different ions using ion-selective electrodes. The determinations are either performed by establishing calibration curves or by performing standard additions; both of which can be automated with an attached 765 or 776 Dosimat. For the fully automatic standard addition you need only enter the concentration of your standard and the desired number of additions, the rest is taken care of by the pH/Ion Meter. Any name can be used for the determined species and the result unit is freely selectable.

781 pH/Ion Meter with stirrer

Switch on and measure

Measuring ion concentration by means of direct measurement, standard additions or sample additions
Inherent quality control tool: pH electrode test for standard electrodes, gel electrodes and electrodes for non-aqueous media
Graphics display grants overview and facilitates operation
Calibration with automatic buffer recognition, up to 9 calibration buffers
Recall of stored calibration data including curves
Plot function pH, U, T, Conc. versus time on printer
Result memory for up to 100 results
Stirrer control by the pH meter ensures reproducible measuring results
Entering of calibration interval with reminder
Automatic recognition and control of stirrer via "Metrohm Serial Bus"
Plot function pH, U, T, Conc. versus time on printer

Ranges

Measuring ranges	pH: 0...14 (±20.000), Potential: U ±2000.0 mV, Temperature: T (Pt1000) -150.0...+250.0 °C, NTC -20 °C...+250 °C
Resolution	Delta pH 0.001 Delta U 0.1 mV Delta T 0.1 °C/°F

Sensors

You can obtain the following Metrosensor ion-selective electrodes from us:

with crystal membrane: F^-, Cl^-, Pb²⁺, Cu²⁺, Ag⁺, S^2-, CN^-
with polymer membrane: Na⁺, Ca²⁺, NO₃^-, K⁺, BF₄^-
with glass membrane: Na⁺

If you wish to get more information on the 781 pH and Ion Meter you may either submit our reply form or send an e-mail to Chennai@mdml.com.

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