wtw OxiTop Control OC 110, Operating Manual

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OxiTop
®
Control OC 110 Operating mode: BOD Standard / BOD Routine
ba31116e05 07/2014
23
5 Operating mode: BOD Standard / BOD Rou-
tine
The BOD Standard mode (parallel sample process for up to 12 measuring
heads per overall sample) is preset in the delivery condition of the controller.
To change to the BOD Routine operating mode (single samples): see section
9.4.1 O
PERATING MODE
, page 60.
The handling of controller and measuring heads is basically the same in both
operating modes. Where there are differences for the
BOD Routine operating
mode they are described.
5.1 Sample preparation
See application reports.
Screw the OxiTop
®
measuring heads onto the measuring vessels and
close them tightly.
NOTE
Never use joint grease or other lubricants for your OxiTop
®
measuring
heads. Some of these products contain solvents that can cause severe
damage to the plastic housing of the measuring head.
The sealing of the measuring vessels is perfectly adequate without
grease. However, you should always wipe off heavy contamination and
particles on the sealing surfaces of the rubber sleeves and OxiTop
®
measuring heads. WTW accepts no liability for damage due to the use of
joint grease.
5.2 Starting the measurement
SELECT ACTION menu (com-
munication with the measuring
heads):
Preselected:
- Start sample .
(In BOD Routine mode appears:

START ).
Select the measuring range with
<

><

> .
The filling volume required is
given in the right hand column.
The controller stores the setting
(memory function: the last
selected measurement range is
set).
RUN/ENTER