Supelco TURBIQUANT 1100 IR User manual

TURBIQUANT®
1100 IR
1100 T
ba75455e06 02/2020
Turbidimeter
Operating Manual

02/2020 3
Accuracy when
going to press
Warranty
declaration
Copyright
The use of advanced technology and the high
quality standard of our instruments are the
result of a continuous development. This may
result in differences between this operating
manual and your instrument. Also, we cannot
guarantee that there are absolutely no errors
in this manual.
Therefore, we are sure you will understand
that we cannot accept any legal claims result-
ing from the data, figures or descriptions.
The designated instrument is covered by a
warranty of 2 years from the date of purchase.
The instrument warranty extends to manufac-
turing faults that are determined within the
period of warranty. The warranty excludes
components that are replaced during mainte-
nance such as lamps, etc.
The warranty claim extends to restoring the
instrument to readiness for use but not, how-
ever, 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 pre-
paid.
© Merck KGaA
64271 Darmstadt
Deutschland
www.sigmaaldrich.com
EMD Millipore Corporation, 400 Summit Drive,
Burlington MA 01803, USA
Sigma-Aldrich Canada Co. or Millipore
(Canada) Ltd. , 2149 Winston Park,
Dr. Oakville, Ontario, L6H 6J8
Reproduction in whole - or even in part - is
prohibited without the express written permis-
sion of Merck KGaA, Darmstadt, Germany.

02/20204
1 Overview ......................................... 6
1.1 Display ......................................................7
1.2 Keypad .....................................................8
2 Safety .............................................. 9
2.1 Authorized use ......................................... 10
2.2 General safety instructions......................... 10
3 Commissioning .............................. 12
3.1 Scope of delivery ...................................... 12
3.2 Initial commissioning................................. 12
4 Operation....................................... 14
4.1 Instructions for operating .......................... 14
4.1.1 Marking and indexing cuvettes........... 14
4.1.2 Venting the sample .......................... 16
4.2 Measuring turbidity ................................... 17
4.3 Calibration ............................................... 20
4.3.1 Basic information on calibration ......... 20
4.3.2 Calibration procedures ...................... 20
4.3.3 Preparing the calibration ................... 21
4.3.4 Three-point calibration...................... 22
4.3.5 Partial (user-defined) calibration .......... 24
5 Maintenance, cleaning, disposal .... 26
5.1 Changing the batteries .............................. 26
5.2 Cleaning .................................................. 28
5.2.1 Cleaning the instrument.................... 28
5.2.2 Cleaning the cuvettes ....................... 28
5.3 Disposal .................................................. 29
6 What to do if... .............................. 30
7 Technical data ............................... 31
8 Turbiquant®product program ........ 33
9 Lists............................................... 34
10 Preparation of Formazine (C2H4N2)
Primary Standard 4000 NTU............ 36
Contents

02/2020 5
1 Overview
The Turbiquant®1100 IR / Turbiquant®1100 T enables
rapid and reliable turbidity measurements to be carried
out on individual samples. The measuring method used
corresponds to DIN EN ISO 7027 (Turbiquant®1100 IR)
or US EPA 180.1 (Turbiquant®1100 T).
Overview
42
1
2
3
4
5
4283
NTU
FNU
CA L
1Cuvette in the cuvette shaft
2Marking ring for calibration standard
3Mark
4Display
5Keypad

02/20206
1.1 Display
The LCD display has the following display elements:
Overview
13
2
4
...8
...8
NTU
FNU
CAL ERR
123
4
5
1Calibration symbol - instrument in
Calibration mode
2Error symbol - flashes when an error
occurs
3Battery symbol - is illuminated if the
battery needs to be changed
4Measuring unit NTU or FNU
5Main line

02/2020 7
1.2 Keypad
The Turbiquant®1100 IR / Turbiquant®1100 T has a
keypad with the following 5 keys:
Overview
Key Function
Switch measuring instrument
on/off
Select calibration standard
Start measurement;
press and hold: index the cell;
release again: start measure-
ment or calibration
Call up or terminate calibration
mode
CALCAL

02/20208
2 Safety
This operating manual contains basic instructions that
you must follow during the commissioning, operation
and maintenance of the measuring instrument.
Consequently, all responsible personnel must read this
operating manual before working with the measuring
instrument.
The operating manual must always be available within
the vicinity of the measuring instrument.
The measuring instrument was developed for measure-
ments on site and in the laboratory. We assume that,
due to their professional training and experience, oper-
ators are familiar with the safety measures that are
necessary when handling chemicals.
Caution
indicates instructions that have to be followed to pre-
vent damage to your instrument.
Note
indicates notes that draw your attention to special fea-
tures.
Note
indicates cross-references to other documents, e. g.
Application reports.
Safety
Target group
Symbols used

02/2020 9
2.1 Authorized use
Authorized use consists exclusively of the turbidity
measurement of individual samples on site or in a lab-
oratory environment.
The technical specifications given in the TECHNICAL
DATA chapter must be observed. Only the operation
and running 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 technically safe
and secure condition.
The smooth functioning and operational safety of the
measuring instrument can only be guaranteed if the
generally applicable safety measures and the specific
safety instructions that appear in this operating manu-
al are followed during operation.
The smooth functioning and operational safety of the
measuring instrument can only be guaranteed under
the climatic conditions specified in the chapter,
TECHNICAL DATA.
If the instrument was transported from a cold environ-
ment to a warm environment, the formation of con-
densate can impair the functioning of the instrument.
In this event, wait until the temperature of the instru-
ment reaches room temperature before putting the
instrument back into operation.
Safety
Function and
operating safety

02/202010
If safe operation is no longer possible, the instrument
must be taken out of service and secured against inad-
vertent operation!
Safe operation is no longer possible if the measuring
instrument
• has been damaged in transport
• has been stored under adverse conditions for a
lengthy period of time
• is visibly damaged
• no longer operates as described in this manual.
If you are in any doubt, please contact the supplier of
the instrument.
The purchaser of this measuring instrument must
ensure that the following laws and guidelines are
observed when using dangerous substances:
• EEC directives for protective labor legislation
• National protective labor legislation
• Safety regulations
• Safety datasheets of the chemical manufacturers.
Safety
Safe operation
Obligations of
the operator

02/2020 11
3 Commissioning
3.1 Scope of delivery
• Turbiquant®1100 IR or Turbiquant®1100 T handheld
turbidimeter
• Operating manual
• Two empty cuvettes
• Carrying case with short operating manual
• 4 alkaline manganese batteries, type AAA/Micro (in .
the meter)
3.2 Initial commissioning
1Switch on the turbidimeter: Press the key for
approx. one second. The instrument is immedi-
ately ready for operation.
Note
The meter was calibrated and tested by the manufac-
turer before delivery. Consequently, you can begin to
measure immediately. However, we recommend to
recalibrate following the initial commissioning (see sec-
tion 4.3 CALIBRATION). Thus, you will quickly become
familiar with the operation and calibration of the
meter.
Commissioning
Switching on

02/202012
After switching on or calibrating the following display
indicates that the instrument is ready to measure:
While measuring, the instrument displays moving
dashes prior to displaying a stable measured value:
After approx. 8 - 11 seconds the measured value is
displayed:
The instrument has an energy saving feature.
The energy saving feature switches off the instrument
if no key is pressed for 5 minutes.
Commissioning
Display when
ready to measure
Display during
measurement
Example of a
measured value
display
Energy saving
feature
ERR
3
2
4
-
-
r
r
d
d
-
-
NTU
FNU
--
CAL ERR
13
2
4
------
NTU
FNU
CAL ERR
13
2
4
4
4
2
2
8
8
3
3
NTU
FNU

02/2020 13
4 Operation
4.1 Instructions for operating
4.1.1 Marking and indexing cuvettes
Even completely clean quality cuvettes exhibit tiny
directional differences in their light transmittance.
Therefore, if you want to achieve accurate and repro-
ducible measurement results, it is necessary to always
index the sample cuvettes and calibration standards in
the same way (see section 2130 of the "Standard
Methods for the Examination of Water and
Wastewater", 19th edition).
The cuvette must be absolutely clean (see section
5.2.2 CLEANING THE CUVETTES).
A sample cuvette with screwable light protection cap is
indexed during measurement (see section 4.2
MEASURING TURBIDITY).
Calibration standards with a permanently fixed light
protection cap can be permanently marked using the
marking rings provided. A marked calibration standard
can be quickly brought into the optimum position. For
this purpose, the marking rings have an arrow that is
turned towards the mark on the light shaft. This short-
ens the entire calibration procedure.
Mark a calibration standard as follows:
1Switch on the turbidimeter: Press the key.
2Make sure that the outside of the cuvette is
clean, dry, and free of fingerprints.
3Insert the calibration standard in the cuvette
shaft so that it clicks into place.
Operation
Cleaning the
cuvette
Indexing the
sample cuvette
Marking
calibration
standards

02/202014
4Slowly rotate the calibration standard by one
complete rotation (by 360 °) in small steps and
hold the key depressed while doing so.
After each step, wait for a moment until the dis-
play is stable. Watch the display of the turbidim-
eter while you rotate the cuvette. Subsequently,
turn the calibration standard to the position with
the lowest displayed value.
Note
To keep the drift as low as possible, the time for
indexing the cuvette while pressing and holding the
key is limited to 30 seconds. After this time the
turbidimeter automatically starts the measurement or
calibration.
5With the cuvette in this position, place a mark-
ing ring on the calibration standard so that the
arrow on the marking ring points to the mark on
the enclosure
6Leave the marking ring on the light protection
cap of the calibration standard. This calibration
standard is now marked permanently
Operation

02/2020 15
A marked calibration standard is indexed as follows:
1Insert the marked calibration standard in the
cuvette shaft so that it clicks into place.
2Turn the calibration standard so that the arrow
on the marking ring points to the mark on the
enclosure.
3While pressing and holding the key,
slowly align the calibration standard in the
range around the arrow, i.e. turn it in small
steps. After each step, wait for a moment until
the display is stable. Subsequently, turn the
calibration standard to the position with the
lowest displayed value.
4Leave go of the ke y.
4.1.2 Venting the sample
Air bubbles in the sample affect the measuring result
to a massive extent because they have an extensive
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 remove air
bubbles:
• During sampling, ensure all movement is kept to a
minimum
• If necessary, vent the sample (ultrasonic baths,
heating or adding a surface-active substance to
reduce surface tension)
Operation
Indexing a
calibration
standard during
calibration
Avoiding or
removing
air bubbles

02/202016
4.2 Measuring turbidity
Caution
Never pour liquid directly into the cuvette shaft.
Always use a cuvette for the measurement. The mea-
suring instrument only measures precisely when the
cuvette is closed with the black light protective cap.
Note
The outside of the cuvette always has to be clean, dry,
and free of fingerprints. Clean the cuvette before start-
ing to measure (see section 5.2.2 CLEANING THE
CUVETTES). Only hold the cuvettes by the top or by
the black light protection cap.
This is how to measure the turbidity of a sample using
the Turbiquant®1100 IR / Turbiquant®1100 T:
1Switch on the turbidimeter: Press the key.
2Rinse out a clean cuvette with the sample to be
measured:
Pour approximately 10 ml sample into the
cuvette. Close the cuvette and rotate it several
times before throwing the sample away
3Repeat the rinsing procedure twice more.
4Fill the cuvette with the sample to be measured
(approx. 15 ml). Close the cuvette with the
black light protection cap.
5Make sure that the outside of the cuvette is
clean, dry, and free of fingerprints.
6Insert the cuvette in the cuvette shaft so that it
clicks into place.
Operation
Measuring

02/2020 17
7Align the cuvette:
Slowly rotate the cuvette by one complete rota-
tion (by 360 °) in small steps and hold the
key depressed while doing so. After each
step, wait for a moment until the display is sta-
ble. Watch the display of the turbidimeter while
you rotate the cuvette. Subsequently, turn the
cuvette to the position with the lowest displayed
value.
Note
To keep the drift as low as possible, the time for
indexing the cuvette while pressing and holding the
key is limited to 30 seconds. After this time the
turbidimeter automatically starts the measurement or
calibration.
8Leave go of the ke y.
9Dashes are displayed while the measured value
is being determined.
10 Read the measured value when it is displayed.
11 Repeat steps 2 to 9 for further samples.
Operation
CAL ERR
13
2
4
4
4
2
2
8
8
3
3
NTU
FNU

02/202018
If the measured value is outside the measuring range
of the Turbiquant®1100 IR / Turbiquant®1100 T, 1100
flashes on the display:
To switch the meter off, press the key.
Operation
Display when
measuring range
is exceeded
Switching the
meter on/off
CAL1ERR
3
2
4
1
1
1
1
0
0
0
0
NTU
FNU

02/2020 19
4.3 Calibration
4.3.1 Basic information on calibration
Just like any other measuring instrument, the measur-
ing accuracy of the Turbiquant®1100 IR / Turbiquant®
1100 T has to be checked and adjusted at regular
intervals.
Under normal conditions, we recommend calibrating
the turbidimeter at least every three months.
4.3.2 Calibration procedures
You have the following possibilities for calibrating the
Turbiquant®1100 IR / Turbiquant®1100 T:
• Three-point calibration over the entire measuring
range according to the specified calibration program
(section 4.3.4).
• Partial (user-defined) calibration over a limited range
(section 4.3.5).
• Single-point calibration. This is a special user-defined
calibration and only recommended as a temporary
solution. After a single-point calibration, measuring
is only possible close to the calibration point and
with reduced accuracy.
For optimum calibration over the entire measuring
range of the instrument, you will require the following
three calibration standards (see chapter 8 TURBIQUANT®
PRODUCT PROGRAM):
Standard no. NTU/FNU
1 1000
2 10.0
3 0.02
The calibration can also be performed with less than
the three calibration standards if the anticipated mea-
sured values lie in a limited range (partial calibration).
Operation
Why calibrate?
When to
calibrate?
Calibration points
and measuring
ranges

02/202020
However, when selecting the calibration points, the fol-
lowing rules must be followed so that the instrument
measures with the precision specified in chapter 7
TECHNICAL DATA within the calibration period:
• The expected measuring range must lie between two
calibration points.
• If there are more possible calibration points between
the start and end of the calibration interval, they
must be used.
4.3.3 Preparing the calibration
Perform the following preparatory activities when you
want to calibrate:
1Have the required calibration standards ready
and mark them as necessary (see 4.1.1
MARKING AND INDEXING CUVETTES).
2Make sure that the outsides of the cuvettes are
clean, dry, and free of fingerprints.
Caution
Never open the cuvettes containing the calibration
standards.
Operation