Xylem WTW Turb 750 IR/T User manual

OPERATING MANUAL
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750 T
Turb
Turb®750 IR/T
LABORATORY TURBIDIMETER
OPERATING MANUAL

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Turb®750 IR/T
Copyright ©2021 Xylem Analytics Germany GmbH
Printed in Germany.

Turb®750 IR/T Contents
3
Turb®750 IR/T - Contents
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Safety . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4
Display and jack field. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4
Power supply . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5
General operating principles . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5
Initial commissioning . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8
Operation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 9
Inserting a cell . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 9
Preparing the cell and sample . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 9
Measuring the turbidity . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 11
Calibration . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 12
Maintenance, cleaning. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 14
What to do if... . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 16
General information . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 16
Turbidity . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 16
Technical data . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 17
General data . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 17
Turbidity (Turb®750 IR) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 18
Turbidity (Turb®750 T) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 19
All current data for the Turb®750 IR/T can be found on the Internet
under www.WTW.com:
Firmware
Operating manual
More detailed information can be found in the appendix of the
detailed operating manual on the CD-ROM provided.

Safety Turb®750 IR/T
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Safety
Safety information Safety instructions point out dangers:
NOTE
indicates a possibly dangerous situation where goods might be
damaged if the actions mentioned are not taken.
Safe operation
Authorized use This meter is authorized exclusively for turbidity measurements in the labo-
ratory.
Only the operation and running of the meter according to the instructions and
technical specifications given in this operating manual is authorized (see
TECHNICAL DATA, page 17).
Any other use is considered unauthorized.
Display and jack field
Display The graphic display shows all information of the current measurement in the
measured value display. The illumination enables to read the display even in
the darkness.
WARNING
indicates a possibly dangerous situation that can lead to se-
rious (irreversible) injury or death if the safety instruction is
not followed.
CAUTION
indicates a possibly dangerous situation that can lead to
slight (reversible) injury if the safety instruction is not fol-
lowed.
CAUTION
Danger of eye damage by visible and invisible LED radiation.
In the cell shaft of the Turb®750 IR there are light emitting
diodes (LEDs) of the 1M class.
Do not look at the radiation using optical instruments.
With normal, authorized use there is no hazard.

Turb®750 IR/T Power supply
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Socket field
Power supply
The Turb®750 IR/T is supplied with power by the power pack included in the
scope of delivery. The batteries (4 batteries 1.5 V Mignon type AA) in the bat-
tery compartment supply the integrated clock with power when the power
supply is missing.
General operating principles
This section contains basic information on the operation of the Turb®750 IR/
T.
1 Status display indicators, e.g.:
[IRPC] = Intelligent reproducibility and plausibility check
[AQA] = Valid AQA check available
2 Measured value (with unit)
3 Status display indicators, e.g.
[3-P StdCAL] = Valid calibration available
(calibration type: 3-P StdCAL))
4 Status line with date and time
1
2
3
4
Turbidity
[IRPC] [AQA]
157.0
FNU
NTU
[3-P StdCAL]
15.01.20 16:12
1 USB-B (micro) interface
2 Power pack
3 RS232 serial interface
3
1 2