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Metrohm 900 - Page 305

Metrohm 900
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29 Parameters
900 Touch Control
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289
can be found in the "Technical specifications" chapter for the control
instrument used.
Measured value (measuring mode pH):
Input range –20.000 to 20.000
Default value 20.000
Measured value (measuring mode U, Ipol):
Input range –2000.0 to 2000.0 mV
Default value 2000.0 mV
Measured value (measuring mode Upol):
Input range
–200.00 to 200.00 µA
Default value 200.00 µA
Volume:
Input range
0.00000 to 9999.99 mL
Default value 9999.99 mL
EP criterion
The Equivalence point Recognition Criterion (ERC) found is compared with
this value. Equivalence points whose ERC is less than the value defined
here will be ignored.
Input range 0 to 200
Default value 5
EP recognition
This parameter allows you to filter out only the equivalence points that are
being sought.
Selection first | greatest | last | ascending | descending
Default value first
first
Only the first equivalence point will be recognized.
greatest
Only the equivalence point with the greatest ERC value, i.e. the steep-
est jump, will be recognized.
last
Only the last equivalence point will be recognized.
ascending
Only equivalence points with a positive slope of the titration curve will
be recognized.
descending
Only equivalence points with a negative slope of the titration curve will
be recognized.

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