User-Defined Calibration - wtw Turb 555 Operating Manual

Turbidity
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Turb 555 / Turb 555 IR
Calibration
ba41113e07
04/2009

4.4.5 User-defined calibration

This is how you calibrate your measuring instrument accord-
ing to a procedure selected by you:
1 In the normal measuring mode, press the
c
until the
display.
1
2 Press
3 If necessary, enter the calibration code (section
4.3 A
CCESS CODES
1
4 Press
In the lower display line, the instrument asks you to
insert the 0.02 NTU calibration standard.
8
5 With the
or keep the setting.
6 Insert the displayed calibration standard into the cu-
vette shaft.
7 Align the cuvette.
1
8 Press the
During the calibration step, the
bols flash. The lower display line shows the remain-
ing measuring cycles until the end of the calibration
step.
indicator appears on the left part of the
.
).
.
2
or
key, change the calibration standard
key.
Operation
8
2
or
c
s
and
sym-
key
45

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