wtw Turb 550 User manual

ba41112e03 04/2003
Turb 550 /
Turb 550 IR
ba41112e
Operating Manual
Turbidity Measuring Instrument

2
Accuracy when
going to press The use of advanced technology and the high quality stan- dard of our instruments are the result of continuous develop-
ment. This may result in differences between this operating
manual and your instrument. We cannot guarantee that
there are absolutely no errors in this manual. We are sure
you will understand that we cannot accept any legal claims
resulting from the data, figures or descriptions.
Warranty
declaration The designated instrument is covered by a warranty of 2 years from the date of purchase.
The instrument warranty extends to manufacturing faults
that are determined within the period of warranty. The war-
ranty excludes components that are replaced during main-
tenance such as lamps, etc.
The warranty claim extends to restoring the instrument to
readiness for use but not, however, to any further claim for
damages. Improper handling of the instrument invalidates
any warranty claim.
To ascertain the warranty liability, return the instrument and
proof of purchase together with the date of purchase freight
paid or prepaid.
Copyright ©Weilheim 2002, WTW GmbH & Co. KG
Reprinting - even in the form of excerpts - is only allowed
with the explicit written authorization of
WTW GmbH & Co. KG, Weilheim.
Printed in Germany.

List of contents
3
1 Overview . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5
1.1 Keypad . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .6
1.2 Display . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .7
1.3 Sockets . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .7
2 Safety . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 9
2.1 Authorized use . . . . . . . . . . . . . . . . . . . . . . . . .10
2.2 General safety instructions . . . . . . . . . . . . . . . .10
3 Commissioning . . . . . . . . . . . . . . . . . . . . . . . . 13
3.1 Initial commissioning . . . . . . . . . . . . . . . . . . . . .13
3.2 Connecting the plug-in power supply . . . . . . . .14
3.3 Switching on the measuring instrument . . . . . .15
4 Operation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 17
4.1 Instructions for operating . . . . . . . . . . . . . . . . . .17
4.1.1 Marking and aligning cells . . . . . . . . . . .17
4.1.2 Venting the sample . . . . . . . . . . . . . . . . .19
4.2 Measuring turbidity . . . . . . . . . . . . . . . . . . . . . .20
4.2.1 Standard measurement . . . . . . . . . . . . .20
4.2.2 Measuring turbidity using the flow-through
vessel (accessory) . . . . . . . . . . . . . . . . .23
4.3 Calibration . . . . . . . . . . . . . . . . . . . . . . . . . . . . .27
4.4 Configuring the instrument . . . . . . . . . . . . . . . .31
4.4.1 Changing settings . . . . . . . . . . . . . . . . . . . . 31
4.4.2 Reset . . . . . . . . . . . . . . . . . . . . . . . . . . .34
4.5 Documentation . . . . . . . . . . . . . . . . . . . . . . . . .35
4.5.1 Connecting the printer . . . . . . . . . . . . . .35
4.5.2 Printing . . . . . . . . . . . . . . . . . . . . . . . . . .35
5 Maintenance, cleaning, disposal . . . . . . . . . . 37
5.1 Maintenance . . . . . . . . . . . . . . . . . . . . . . . . . . .37
5.1.1 Changing the lamp module . . . . . . . . . .37
5.1.2 Changing the batteries . . . . . . . . . . . . . .38
5.2 Cleaning . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .40
5.2.1 Cleaning the measuring instrument . . . .40

List of contents
4
5.2.2 Cleaning the cells . . . . . . . . . . . . . . . . . .40
5.3 Disposal . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .41
6 What to do if ... . . . . . . . . . . . . . . . . . . . . . . . . . 43
7 Technical data . . . . . . . . . . . . . . . . . . . . . . . . . 47
8 Accessories (options) . . . . . . . . . . . . . . . . . . . 49
9 Abbreviations and index . . . . . . . . . . . . . . . . . 51

Overview
5
1Overview
The Turb 550 / Turb 550 IR lets you perform turbidity mea-
surements rapidly and reliably.
ThemeasuringmethodusedintheTurb550IRcorresponds
to the ISO 7027 / DIN 27027. The measuring method used
in the Turb 550 follows the US EPA construction recommen-
dations.
1
2
3
4
5
Short instructions
Keypad
Display
Cell shaft
Marker pin
6
7
8
9
10
Lamp module
Accessories case
Cell
Marker ring
Light protection cap
1
2
3
45
6
7
8
9
10

Overview
6
1.1 Keypad
lkey
Store/output the
measured value
lkey
Increase values; Select
settings
lkey
Reduce values; Select
settings
lkey
Call up/terminate calibra-
tion procedure
lkey
Switch measuring instru-
ment on/off

Overview
7
1.2 Display
1.3 Sockets
1
2
3
4
5
Upper display line:
Meas. value display in NTU / operating guide
Lower display line:
Stored meas. value / operating guide / error messages
Status displays
Operating guide on setting up
LoBat: Request to change the battery
1
2
3
RS232 interface
Socket for plug-in power supply
Plug-in power supply
1
2
3
4
5
1
2
1
3

Overview
8

Safety
9
2 Safety
This operating manual contains basic instructions that you
must follow during the commissioning, operation and main-
tenance of the instrument. Consequently, all responsible
personnel must read this operating manual before working
with the instrument.
The operating manual must always be available within the
vicinity of the instrument.
Target group This measuring instrument was developed for use in the lab-
oratory. Thus, we assume that, as a result of their profes-
sional training and experience, the operators will know the
necessary safety precautions to take when handling chemi-
cals.
Symbols used Warning
indicates notes that you must read to protect your in-
strument from damage.
Note
indicates notes that draw your attention to special features.
Note
indicates references to other documents, e.g. application re-
ports, operating manuals of measuring chains, etc.

Safety
10
2.1 Authorized use
This instrument is authorized exclusively for use in measur-
ing turbidity in the laboratory.
The technical specifications as given in the chapter, TECHNI-
CAL DATA, must be observed. Only the operation and run-
ning of the measuring instrument according to the
instructions given in this operating manual is authorized.
Any other use is considered unauthorized.
2.2 General safety instructions
This instrument left the factory in a safe and secure techni-
cal condition.
Function and opera-
tional safety The smooth functioning and operational safety of the instru- ment can only be guaranteed if the generally applicable
safety measures and the specific safety instructions in this
operating manual are followed.
The smooth functioning and operational safety of the instru-
ment can only be guaranteed under the climatic conditions
specified in the chapter, TECHNICAL DATA.
Ifthe instrument was transportedfromacold environmentto
a warm environment, the formation of condensate can lead
to the faulty functioning of the instrument. In this event, wait
until the temperature of the instrument reaches room tem-
perature before putting the instrument back into operation.
Safe operation If safe operation is no longer possible, the instrument must
be taken out of service and secured against inadvertent op-
eration.
Safe operation is no longer possible if:
lthe instrument has been damaged in transport,
lthe instrument has been stored under adverse conditions
for a lengthy period of time,
lthe instrument is visibly damaged,
lthe instrument no longer operates as prescribed in this
manual.