Hach TitraLab Quick manual

DOC022.97.90358
TitraLab pH & acid analyzer
11/2011, Edition 1
Basic User Manual en
Manual básico del usuario es
Manuel d'utilisation de base fr
기본 사용 설명서 ko
Manual do utilizador básico pt
基本用户手册 zh

English .............................................................................................................................................. 3
Español ........................................................................................................................................... 17
Français .......................................................................................................................................... 31
한국어 ............................................................................................................................................. 45
Português ....................................................................................................................................... 59
英语 ................................................................................................................................................. 73

English 3
English
Specifications
These are subject to change without notice!
Performance specifications
Measuring principle Acid–base titration
pH: potentiometric determination
Application area
LLV2301.97.1002 Determination of pH and acid content of tartaric acid and sulfuric acid in wine
LLV2302.97.1002 Determination of pH and acid content in dairy products
LLV2304.97.1002 Determination of pH and acid content of citric acid in tomato sauce and tomato products
LLV2306.97.1002 Determination of pH and acid content of lactic acid in brine
Measuring range
LLV2301.97.1002 0–37.50 g/L tartaric acid 0–24.50 g/L sulfuric acid
0–14 pH
LLV2302.97.1002 °SH, °D, g lactic acid/100 mL sample
0–14 pH
LLV2304.97.1002 0.06–6.4% citric acid (1 g sample)
0–14 pH
LLV2306.97.1002 0.04–4.5% lactic acid
0–14 pH
Resolution Dependent on the selected units
Electrode pH electrode, combined reference electrode, with built-in Pt 1000 sensor
Calibration One, two or three-point calibration
Buffer recognition Automatic: pH 2.00; 4.01; 7.00; 9.21 and 10.90 (at 25 °C)
Programs pH measurement, 1 titration program, 1 calibration program
Languages English, Spanish, French and Italian
Data logger 55 data records
Date/time DD-MM-YYYY

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Display 128 x 64 pt, backlit liquid crystal display
Keypad 7 membrane keys, splash-proof, PET,
lifetime of >6 million key-presses
Burette Resolution 0.001 mL
Material of syringe Polypropylene
Volume 10 mL
Tubes White PTFE tubes
Inputs and outputs
Measuring electrode BNC connector
Magnetic stirrer RCA connector (cinch)
Computer or printer RJ11 telephone connector
Power supply, external 24 VAC, 1.25 A, 30 VA
Mouse Mini-DIN connector (only available on LLV2301.97.1002, LLV2302.97.1002 and
LLV2306.97.1002)
Dimensions of measuring instrument and environmental conditions
Enclosure material ABS and enameled steel
Weight approximately 4 kg
Dimensions 130 x 160 x 300 mm
Working temperature 15–40 °C (60–104 °F)
Storage temperature –10–50 °C (14–122 °F)
Air humidity <80% relative humidity, non-condensing
Warranty
Warranty 1 year
Performance specifications

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General information
Safety information
Please read the entire user manual carefully before the equipment is
unpacked, set up or put into operation. Pay attention to all danger and
warning statements. Failure to do so could result in serious injury to the
operator or damage to the equipment.
To make sure that the protection provided by this instrument is not
impaired, do not use or install this instrument in any manner other than
that specified in these operating instructions.
Note: Information that supplements points in the main text.
Warning labels
Read all labels and tags attached to the instrument. Personal injury or
damage to the instrument could occur if not observed. For symbols
applied to the instrument, corresponding warnings are provided in the
user manual.
DANGER
Indicates a potentially or imminently hazardous situation that, if not avoided,
results in death or serious injury.
WARNING
Indicates a potentially or imminently hazardous situation that, if not avoided, could
result in death or serious injury.
CAUTION
Indicates a potentially hazardous situation that may result in minor or moderate
injury.
NOTICE
Indicates a situation that, if not avoided, could result in damage to the instrument.
Information that requires special emphasis.
This symbol, if noted on the instrument, references the instruc-
tion manual for operation and/or safety information.
This symbol may be found on an enclosure or barrier within the
product and indicates a risk of electrical shock and/or death by
electrocution.
Electrical equipment marked with this symbol may not be dis-
posed of in European domestic or public disposal systems after
August 12, 2005. In conformity with European local and national
regulations (EU Directive 2002/96/EC), European electrical
equipment users must now return old or end-of life equipment to
the manufacturer for disposal at no charge to the user.
Note: For return for recycling, please contact the
equipment manufacturer or supplier for instructions on
how to return end-of-life equipment, manufacturer-
supplied electrical accessories, and all auxiliary items
for correct disposal.

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Chemical and biological safety
Normal operation of this instrument may involve the use of hazardous
chemicals or biologically harmful samples.
•Observe all cautionary information printed on the original solution
containers and safety data sheet prior to their use.
•Dispose of all consumed solutions in accordance with national
regulations and laws.
•Select the type of protective equipment suitable to the concentration
and quantity of the dangerous material at the respective work place.
Installation
Unpack the instrument
Unpack all supplied parts carefully, as they are highly sensitive in part to
shock and impact. Read the user manual prior to installation and
proceed exactly as described.
Scope of delivery
Please check that the order is complete. If anything is missing or
damaged, please contact the manufacturer or retailer.
DANGER
Potential danger in the event of contact with chemical/biological materials.
Handling chemical samples, standards and reagents can be dangerous.
Familiarize yourself with the necessary safety procedures and the correct han-
dling of the chemicals before the work and read and follow all relevant safety data
sheets.
WARNING
Risk of injury
When working with chemicals and/or solvents, always observe the relevant acci-
dent prevention regulations and wear appropriate personal protective clothing.
Make sure that the system is only unpacked, assembled, connected and oper-
ated by qualified and trained personnel.

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Figure 1 Product contents
1TitraLab pH & acid content system 9O-ring to secure tube
2Tube with bottle closure, DIN 45 thread 10 Mouse (versions LLV2301.97.1002, LLV2302.97.1002 and LLV2306.97.1002
only)
3Tube to attach to electrode 11 Power supply, external
4Titration stand holder including magnetic stirrer 12 Adapter for power supply
510x white O-rings for burette and pump threads 13 Hardware sleeve
610x Teflon magnetic stirring bars (20 mm x 6 mm) 14 Syringe with plunger
710x titration cells, 50 mL, Ø 30 mm, polypropylene with lid 15 Empty desiccant cartridge with stopper
8pH electrode with cable and tube guide

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Operating environment
Note the following points so that the instrument will operate perfectly and
have a long service life.
•Place the instrument firmly on an even surface. Do not push any
objects under the instrument.
•The ambient temperature must be 5 to 40 °C (41 to 104 °F).
•The relative humidity should be less than 80%; moisture should not
condense on the instrument.
•A minimum clearance of 15 cm (5.9 in.) must be ensured above and
on all sides of the device; this allows the air to circulate and
prevents overheating of the electric parts. The dosage arm of the
stepper motor operating the syringe piston must be able to move
freely.
•Do not operate or store the instrument in extremely dusty, humid or
wet locations.
•Make sure that no liquids enter the instrument and immediately wipe
away any liquids that contact the instrument.
•Protect the instrument against vibrations, direct sunlight, corrosive
gases as well as strong magnetic and/or electric fields.
•Only use genuine replacement parts and accessories.
•The instrument must be serviced by the manufacturer's service
department at the prescribed intervals.
Installation
Installation of the burette
The burette dispenses the titrant, a Sodium Hydroxide (NaOH) base
that, depending on the area of application, is either 0.1 M or 0.5 M.
The burette comprises the syringe, stepper motor and valve. The
stepper motor and valve are already installed in the TitraLab; the syringe
has to be installed by the user.
Note: Make sure that you do not misplace the attachment sleeve for the
syringe. It is not provided with a new syringe.
1. Fully insert the syringe piston into the syringe body.
Slide the attachment sleeve fully onto the syringe so that the
narrow end points toward the piston.
2. With the piston facing downward, place the syringe into the bracket
such that the attachment sleeve is above the bracket.
3. With the narrow side facing down, carefully press the attachment
sleeve into the bracket.
Hold the attachment sleeve in the bracket and screw the syringe
onto the valve from below.
4. Withdraw the piston from the syringe and place it onto the screw in
the dosage arm.
Hold the syringe piston and turn the attachment screw on the
dosage arm into the thread in the piston.
NOTICE
Warning against system damage
Make sure that the syringe is never operated without the attachment sleeve.
Only use genuine replacement parts and accessories.
The instrument must be serviced by the manufacturer's service department at the
prescribed intervals.
WARNING
Risk of injury
During the first days of system use, check and tighten the screw joint between the
syringe and valve to avoid leaks and the potential escape of reagents.

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Figure 2 Installation of the burette
Installation of the titration stand
The titration stand consists of a holder onto which the electrode, titration
cell and magnetic stirrer are attached. The titration is performed in the
titration cell.
1. Place the magnetic stirrer onto the base of the titration stand
(observe the routing of the cable).
2. Place a magnetic stirring bar into a titration cell.
Attach the titration cell to the magnetic stirrer.
3. Place the rubber ring on the stand rod to set the minimum height of
the electrode holder.
4. Press the button to lock the electrode holder and place the
electrode holder on the stand rod. The electrode holder is locked
upon release of the button.
5. Remove the white cap from the tip of the electrode.
Insert the electrode into the electrode holder.
Note: Whenever the electrode is taken from the titration stand or the
titration cell is removed from the titration stand, always place a container
beneath the electrode. Otherwise, drips from the sample or chemicals
could contaminate the work area.
Figure 3 Installation of the titration stand
NOTICE
Warning against system damage
Make sure that the height setting of the electrode holder protects the electrode
against damage from the stirring bar and against contact with the bottom of the
titration cell.
Keep the lock button pressed whenever the electrode holder is being moved.

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Electrical connection of the magnetic stirrer
1. Connect the cable of the magnetic stirrer to the STIRRER port on
the back of the TitraLab.
The power is supplied via the TitraLab.
Installation of tubes
Make sure that the tubes are never kinked.
Regularly check the system as well as all tubes and connections for
leaks, condition and cleanliness.
To prevent twisting of the tubes, you should always connect flange tube
connections before those with grommets.
The system is delivered with two tubes; these are supplied pre-installed
on the TitraLab and only need to be connected to the relevant titrant
bottle and to the electrode.
Removal of protective stickers
1. Remove the protective stickers on the burette valve.
2. Make sure that the pre-installed white O-rings are not removed.
3. Check that the O-rings are in a horizontal position inside the thread.
Figure 4 Position of protective stickers
Connection of feed tube
The system is delivered with a tube with bottle closure (DIN 45 thread).
This feed tube is supplied pre-installed on the TitraLab and only needs
to be connected to the titrant bottle.
1. Connect the tube from the IN socket of the burette valve to the
titrant bottle (NaOH). Screw on the bottle closure to do this.
WARNING
Risk of injury
During the first days of system use, check and tighten the screw connections for
all tubes to avoid leaks and potential escape of reagents.