Preparing The Sample; General Operating Principles; Operating Modes; Navigation - Xylem WTW Turb 430 IR/T Operating Manual

Turb 430 IR/T
Venting the sam-
ple
Avoiding or remov-
ing air bubbles
Operating ele-
ments,
display

Operating modes,

navigation

Measured value
display
Menus and dialogs
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4.3.2 Preparing the sample

Air bubbles in the sample affect the measuring result to a massive extent be-
cause they have a large scattering effect on the incident light. Larger air bub-
bles cause sudden changes in the measured values whereas smaller air
bubbles are recorded by the instrument as turbidity. Therefore, avoid or re-
move air bubbles:
 During sampling, ensure all movement is kept to a minimum
 If necessary, vent the sample (ultrasonic baths, heating or adding a sur-
face-active substance to reduce the surface tension)
4.4

General operating principles

This section contains basic information on the operation of the Turb 430 IR/T.
An overview of the operating elements and the display is given in section 1.2
and section 1.3.
An overview of the operating modes of the Turb 430 IR/T and the navigation
through menus and functions can be found in section 4.4.1 and section 4.4.2.
4.4.1 Operating modes
The instrument has the following operating modes:
 Measurement
The display indicates measurement data in the measured value display
 Calibration
The display indicates a calibration procedure with calibration information
 Data transmission
The meter transmits measuring datasets or calibration records to the in-
terface
 Configuration
The display indicates a menu with further menus, settings and functions
4.4.2 Navigation
In the measured value display, open the menu with <MENU>.
The menus for settings and dialogs in procedures contain further subele-
ments. The selection is done with the keys < > < >.
The current selection is displayed inverse.
 Menus
Operation
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