Hach TitraLab Kurzanleitung

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

English 4

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

English 5

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.

English 6

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.

English 7

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

English 8

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.

English 9

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.

English 10

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.

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