Metrohm 796 Titroprocessor User Manual

Page 146

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8.2 DET

796 Titroprocessor, Instructions for use

140

140

dMW/dV

[ERC]

V[mL]

20

min. EPC 5

70

EP1

EP2

EPC 1

EPC 2

U[mV]

V[mL]

EP window #2

EP window #1

EP 1

EP 2

gen. lower limit

gen. upper limit

Equivalence points

Main setting for EP recognition

all | last | greatest | window | off

With the 'all', 'last’ and 'greatest’ settings this in-
formation relates to the general EP window only. Up to 9
equivalence point windows can be set at 'window’, all
of which must be inside the general EP window. The
basic setting for the min. EPC applies as the minimum
value for the individual EP windows.

min. EPC

General equivalence point criterion

0…5…200

The min. EPC is the lowest EPC value which an equiva-
lence point must fulfil to be recognized as such. This
value also applies as the basic setting for the individual
EP windows.

Gen. lower limit

Lower limit of the gen. EP window

with DET_PH*

pH -20…20 |min

with DET_U*, DET_IPOL*

-2000…2000 mV | min

with DET_UPOL*

-200 …200 µA | min

For each titration, the evaluation area can be restricted
at will by changing the general equivalence point win-
dow. Enter the lower limit value here. The evaluation ar-
eas of any individual EP windows must be located within
the general limits entered.

Gen. upper limit

Upper limit of the gen. EP window

with DET_PH*

pH -20…20 |max

with DET_U*, DET_IPOL*

-2000…2000 mV | max

with DET_UPOL*

-200 …200 µA | max

The upper limit value of the general equivalence point
window. Equivalence points can only be evaluated if
they lie within the limit values entered.

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