Metrohm 799 GPT Titrino User Manual
Page 68
2.6. Parameters, key
799 GPT Titrino
64
dos.element: internal D0
meas.input: 1
I(pol) 1 µA
U(pol) 400 mV
electrode test: OFF
temperature 25.0 °C
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.)
Measuring input for pH and U. Measuring input 1 or 2
or differential amplifier; connection of electrodes, see
page 215.
With polarized electrodes, the request of the measuring
input is replaced by one regarding the
polarization current (-127...127 µA)
,
or the
polarization voltage (-1270...1270 mV, in steps of 10
mV)
Electrode test (OFF, ON)
Test for polarized electrodes. Performed on the
switchover from the inactive basic status to a
measurement. "OFF" means the test is not performed.
Temperature (-170.0...500.0 °C)
If a T sensor is connected, the temperature is
measured continuously and the pH values are
corrected accordingly.
The last measured value is entered as the
"temperature" parameter.
>stop conditions
stop V: abs.
**titr.
stop V 99.99 ml
**titr.
factor 999999
**titr.
filling rate max. ml/min
**titr.
Stop conditions
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, 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
Filling rate (0.01...150 mL/min, 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