Metrohm tiamo 1.1 Manual - Manual (Page 359)

Commands 331
Drift for accepting the measured value. off means that the measured value
will be accepted when the maximum waiting time has elapsed.
Min. waiting time
[ 0 (slow, optimal, fast) ] ... 999999 s (only Titrando)
The minimum waiting period is only important for drift-controlled measure-
ments. Measured value acceptance only takes place when the minimum
waiting time has elapsed, even when the measured value drift has already
been achieved. The drift continues to be checked while the waiting time is
elapsing.
Max. waiting time
0 ... [ 38 (slow) ] ... [ 26 (optimal) ] ... [ 21 (fast) ] ... 999999 s (Titrando)
0 ... [ 38 (slow) ] ... [ 26 (optimal) ] ... [ 21 (fast) ] ... 9999 s (Titrino)
If measured value drift is switched off or has not yet been achieved then the
measured value will be accepted after the maximum waiting time has
elapsed. If the waiting time has not been newly entered then a waiting time
that is suitable for the drift will be calculated automatically according to the
following equation:
Dosing of increments
(only visible for Titration rate = user )
Measuring point density
0 ... [ 2 (slow) ] ... [ 4 (optimal) ] ... [ 6 (fast) ] ... 9
A small value means small volume increments, i.e. a high measuring point
density. The curve then shows all the finest details which also include noise;
this could cause unwanted equivalence points to be found. A larger value,
i.e. a smaller measuring point density, permits quicker titrations. If you are
using a dosing device with a small cylinder volume then a smaller measur-
ing point density value may be beneficial. However, you should also set a
smaller measured value drift and a higher EP criterion at the same time.
Min. increment
0.1 ... [ 10.0 (slow, optimal) ] ... [ 30.0 (fast) ] ... 999.9 µL (Titrando)
0.0 ... [ 10.0 (slow, optimal) ] ... [ 30.0 (fast) ] ... 999.9 µL (Titrino)
This smallest permitted volume increment is added at the start of the titra-
tion and with steep curves in the equivalence point region. Very small val-
ues should only be used if a low titrant consumption is expected, as un-
wanted equivalence points could be evaluated.
Max. increment
0.1 ... 9999.9 µL, [ off ] (only Titrando)
A maximum volume increment should be selected when the titrant con-
sumption up to the equivalence point is expected to be very small, a start
volume is to be added until just before the equivalence point is reached or
if the change of direction in the potential jump region is very abrupt, as oth-
erwise it is easy to add too large a volume in the equivalence point region.
The value should not be less than 1/100 cylinder volume.
Dosing rate
0.01 ... 166.00 mL/min, [ maximum ] (Titrando)
0.01 ... 150.00 mL/min, [ maximum ] (Titrino)
Speed at which the volume increments are added. The maximum dosing
rate depends on the cylinder volume of the used exchange unit or dosing
unit.
Temperature
Temperature
-20.0 ... [ 25.0 ] ... 150.0 °C (Titrando)
-170.0 ... [ 25.0 ] ... 500.0 °C (Titrino)