Metrohm 835 Titrando - Manual (Page 41)

4 Appendix
Titrando Installation Instructions
35
4 Appendix
In this section you will find the most important technical data of the Ti-
trando, a list of standard and optional accessories and the warranty
and conformity declarations.
4.1 Technical data
Provided that nothing to the contrary is mentioned, the published val-
ues are typical technical data for the Titrandos with internal and external
dosing drive.
4.1.1 Titration and measuring modes
DET Dynamic equivalence point titration
Controlled titrant addition with variable volume increments
MET Monotonic equivalence point titration
Titrant addition with fixed volume increments
SET Titration to one or two predefined endpoints
KFT Karl Fischer titration
STAT Endpoint titration while holding the measured value constant
MEAS Measurement (pH, potential, temperature, current (Upol), poten-
tial(Ipol) and concentration)
4.1.2 Measuring interfaces
1 or 2 galvanically separated measuring interfaces
Potentiometry
1 high-impedance measuring input for pH, redox and ISE electrodes
1 reference input for separate reference electrode
Input resistance
Offset current
> 1 * 10 12 Ohm
< 1 * 10 –12 A
(under reference conditions)
Temperature
1 measuring input for temperature sensors (Pt1000 or NTC)
Automatic temperature compensation, for NTC sensors R (25 °C) and B
25/50
can be
configured.
Polarizer
1 measuring input for polarized electrodes
Polarization current Ipol
Polarization potential Upol
–125.0 ... +125.0 µA in 2.5 µA steps
–1250 ... +1250 mV in 25 mV steps