Metrohm 751 GPD Titrino - Manual (Page 30)

2.6 Parameters, key
751 GPD Titrino
27
dos.rate max. ml/min
**titr.
pause 2 0 s
**titr.
extr.time 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
cond.
time interval 2 s
cond.
Dosing rate for start volume
(0.01...150 mL/min, max.)
sets "max.".
The maximum rate depends on the Exchange Unit:
Exchange Unit max.
5 mL 15 mL/min
10 mL 30 mL/min
20 mL 60 mL/min
50 mL 150 mL/min
Pause 2 (0...999 999 s)
Waiting time after start volume, e.g. reaction time after
dosing of a start volume. The waiting time can be
aborted with .
Extraction time (0...999 999 s)
During this time the titration is already running. It will be
not stopped (also if the EP is already reached) before
the extraction time is terminated. The extraction time
can be aborted with .
Selection of dosing element (internal D0, external D1,
external D2)
internal D0: internal buret of the Titrino
external D1/2: buret D1, D2, resp.
Measuring input (1, 2, diff.)
Inquiry only with measured quantities 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 potential (-1270...1270 mV, in steps of 10
mV)
is inquired.
Electrode test (OFF, ON)
Test for polarized electrodes. Performed on
changeover from the inactive state to a measurement.
"OFF" means that the test is not performed.
Titration temperature (-170.0...500.0°C).
Temperature is measured at the start of the titration if a
T sensor is connected. The value is used for
temperature compensation in pH titrations.
Time interval (1...999 999 s)
Time interval for acquisition of a measured value into
the measuring point list.