Metrohm 751 GPD Titrino User Manual
Page 20
2.6 Parameters, key
751 GPD Titrino
17
pause 0 s
**titr.
dos.element: internal D0
meas.input: 1
I(pol) 1 uA
U(pol) 400 mV
electrode test: OFF
temperature 25.0 °C
Waiting time (0...999 999 s)
Waiting time, e.g. for equilibration of the electrode after
the start or reaction time after dosing of start volume.
The pause can be aborted with
Selection of the dosing element (internal D0, external
D1, external D2)
internal D0: internal buret of the Titrino
external D1/2: buret D1, D2, resp.
Measuring input for pH and U (1, 2, diff.)
Request for measuring input for pH and U.
Measuring input 1 or 2 or differential amplifier;
connection of electrodes, see page 215.
With polarized electrodes, instead of the measuring
input the
polarization current (-127...127 uA)
or the
polarization voltage (-1270...1270 mV, in steps of 10
mV)
is inquired.
Electrode test (OFF, ON)
Test for polarized electrodes. Performed on
changeover from the inactive standby state to a
measurement. "OFF" means that the test is not
performed.
Titration temperature (-170.0...500.0 °C)
The temperature is continuously measured if a T
sensor is connected. This parameter is used for
temperature compensation in pH titrations.
>stop conditions
stop V: abs.
**titr.
stop V 99.99 ml
**titr.
factor 999999
**titr.
Stop conditions for the titration
If several stop conditions have been set, the criterion
which is met first applies.
Type of stop volume (abs., rel., OFF)
"abs.": absolute stop volume in mL.
"rel.":
relative stop volume to sample size.
"OFF": stop volume switched off. Stop volume is not
monitored.
If "abs." is set:
Absolute stop volume (0...9999.99 mL)
If "rel." is set:
Factor for relative stop volume (0...
±999 999)
Calculated as: Stop V in mL = factor * sample size