< OneTimeZero>
ON : 1 OFF : 0
One Time Zero (OTZ)
OneTimeZero is available for all methods where Zero is performed in a 24 mm Ø round vial with
sample water (see chapter 1.1 Table of Methods).
OneTimeZero can be used for different tests providing the tests are performed with the same
sample water and under the same test conditions. When changing the method, it is not necessary
to perform a new Zero. The test can be carried out straight away.
When the instrument is first being used for an OTZ compatible method and OneTimeZero
is activated, the instrument will request a new Zero with “prepare OT-Zero”. Perform Zero as
described in the method. This Zero will be stored and used for all methods with OTZ function
until the instrument is switched off.
If necessary, a new Zero can be performed by pressing [Zero] key at any time.
Switching the “OTZ-Function“ on and off:
Press [MODE], [Shift] + [5][5] keys.
Confirm with [ ] key.
The display shows:
•
Press [Shift] + [0] keys to switch the OTZ off.
•
Press [Shift] + [1] keys to switch the OTZ on.
switched off
or
switched on
The display shows:
Confirm with [ ] key.
The instrument goes back to mode menu automatically.
Note:
The specified accuracy is valid for all test results when Zero is performed for each test
(OneTimeZero function is switched off ).
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