wtw pHotoFlex STD, Руководство пользователя

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Operation pHotoFlex
®
STD
34
ba75958e07 11/2020
Examples:
4.5.4 Blank value (reagent blank value)
A blank value is required for every concentration measurement.
For some programs (methods) for concentration measurement, the blank val-
ues are already stored in the meter. They are used automatically. For all oth-
er programs, the blank value has to be determined separately before the first
measurement.
Each stored reagent blank value can be replaced by a blank value deter-
mined by the user.
A blank value is always stored for the program that has just been called up.
It remains stored until it is erased (menu item,
Delete blank value ) or over-
written.
The
Reset function erases all blank values measured by the user and re-
stores the blank values stored in the factory.
If a blank value measured by the user is stored for a program, this blank value
is used for measurement. The usage of the blank value measured by the user
is documented and also indicated in the measured value display.
The orientation value can be very inaccurate and should not be
used as a measured value!
You will find more information on blank values in the photometry
analysis manual. A table with the programs and required blank
values is included in the analysis specifications.
Photometry \ Concentration
0.16
[ BV ]
< 0.20
mg/l
83: A6/25 MC NH4-N
16 mm 0.20 - 6.51 mg/l
01.02.05 15:12
Orientation value
Photometry \ Concentration
----
[ BV ]
< 0.20
mg/l
83: A6/25 MC NH4-N
16 mm 0.20 - 6.51 mg/l
01.02.05 15:12
Measurement signal cannot
be evaluated