Metrohm 751 GPD Titrino - Manual (Page 76)

2.6 Parameters, key <PARAM>
751 GPD Titrino
73
2.6.9 Parameters for TIP
In TIP, several commands and methods can be linked to make a titration procedure. The
TIP sequence can be defined with <DEF>, see page 85.
sequence
Parameters for the TIP sequence see page 86.
statistics:
Calculation of mean values and standard deviation,
see page 77.
preselections:
ON/OFF of various auxiliary functions such as auto-
matic requests after the start and activate pulse.
>preselections
req.ident.: OFF
req.smpl size: OFF
limit smpl size: OFF
low lim. 0.0
up lim. 999999
meas.mode: OFF
meas.input: 1
I(pol) 1 uA
U(pol) 400 mV
electrode test: OFF
temperature 25.0 °C
Preselections for the sequence
Request of sample identifications after start (id1, id1&2,
all, OFF)
After start, sample identifications can be inquired
automatically: Only id1, id1 & id2, all three id's or no
inquiries.
Request of sample size after the start (value, unit, all,
OFF)
Limiting value check for sample size (ON, OFF)
With "on" the error message "sample size out." appears
if the entry is outside the set limits. The limiting values
are shown in the display window.
The absolute value of the limit is checked during sam-
ple size input and during the calculation of the results.
If "on" has been set:
Lower limit for sample size (0.0...999 999)
Upper limit for sample size (0.0...999 999)
Measured quantity (pH, U, Ipol, Upol, T, OFF)
Quantity for measurements with key <MEAS/HOLD>.
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, inquiry of
polarization current (-127...127 uA) or
polarization potential (-1270...1270 mV, steps of 10 mV)
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.
Temperature (-170.0...500.0 °C)
Temperature for pH compensation. Its value has to be
entered manually even if a T sensor is connected.
parameters
>sequence
>statistics
>preselections