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Semi-automatic titrators “PH-Burette”.A great pH-meter with integrated burette. Incredible price! Infinite possibilities…

Quality at a reasonable price

PH-Burette 24 1S

+ Total acidity Kit.

Their advantages:■ A pH-meter with resolution 0.01 pH and 1 mV.■ The instrument is complemented with a kit or kits suitable for the analysis.■ A real titrator for a price of a digital burette.■ The results appear directly on the display without need to make calculations.■ Reagent saving due to the high resolution of the burette.■ High reproducible results.■ Using the PH-Burette 24 2S the samples can be prepared and afterwards analysed.■ Specific program for burettes calibration.■ And a great many possibilities depending on your imagination.

and more details such as:■ Automatic and direct control over the stirring.■ Two interfaces RS 232 C:

- One for printer or PC connection.- Another to be linked to up to 10 other CRISON instruments, e.g. other burettes, samplers,

etc., all operated from a PC.■ External keypads:

- 3-button mouse, making equipment operation easier.- PC keyboard for entering data such as company or operator name, etc. These details will appear on reports from the printer.

■ Built-in clock, thanks to which the instrument can also be used as a calendar and clock.

The optimum combination between a pH-meter and a digital burette

PH-Burette 24A unique instrument in the world of pH-meters.Two versions: with one or two working stands.

The TitroMatic offers a program for the calibration of the dispensed volumes, in accordance with the norm UNE-EN ISO 8355.An analytical balance is required.

Burette self-calibration

• Solution preparation.

• Enzyme preparation.

• Total acidity determination in foods.

• Chlorides.

• SO2 (sulphurous) in wine.

• pH measurement and regulation, pH-STAT.

• etc, etc …

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Applications

PH-Burette 24 2S with 2 Kits: acidity kit and SO2 kit.

Useractuation

VolumeDispensed

PH-Burette 2SThe two syringes are activated via a single mechanism.The cursor in movement drags the plungers of the attached syringes.Only one or the two reagents are dispensed depending on the activated valves.

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As a pH-meter…■ Two modes of measurement: by stability and continuous.■ Automatic calibration with 1, 2 or 3 buffers.■ Special calibration. The PH-Burette 24 can be calibrated using any reference solution.■ The pH calibration data is maintained in memory (1 or 2 depending on version).■ Display of the time taken for each measurement. It may be related to the electrode’s state.■ Error messages for incorrect calibrations.

...as a Burette■ Different dispensing modes: repetitive, manual and sequential.■ Programmable dispensation volume: from 1 µl up to 999 ml.■ Automatic syringe recharge.

...as a Titrator■ Possibility to introduce one end point value. Once it is reached, the burette stops dispensing.■ Introduction of calculation factor for obtaining the result in the desired units.■ Two titration modes:

- Manual, the user controls the reagent addition until the end point is reached.- Sequential, the instrument automatically adds the reagent until the end point.

■ Reaction study. In a sequential way, with a printer or a PC connected, a reaction evolution can be followed. This feature is highly appreciated by professors at schools and universities.

Key features and main functions

Example of sequential dispensing:

1. One single keystroke starts a series of dispensing. The volume and the time between additions is programmable. The dispensings are repeated until the programmed maximum volume is reached.

CT-S280 printer,code 82 01

Example of display. Obtain data during titration.

CertificatesAll PH-Burette are supplied with:■ EC Declaration of Conformity according to directive C.E.M 89/336/CE.■ Calibration test of dispensed volume with the burette.■ Specifications certificate and pH/mV measuring test.

CRISON Capture software, optional

The communication software between PC and PH-Burette 24 makes easy the data capture and availability. CODE 24 10 includes software and connection cable.

Data visualization

Display examples

Measurement of pH and temperature

The action messages appear in negative text.

Determination of Total Acidity

EP=pre-selected end point

Analysis results: consumed reagent volume, final pH,

the results in accordance with the introduced factor,

end point delay and analysis duration.

Sequential dispensing

The programmed time between 2 dispensing is 5 s.

The volume 1.300 ml was dispensed in 43 seconds

Details on pH calibration

Recommended printer, optional

Using the printer, all performed tasks are regis-tered.

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Complement the instrument with 1 or 2 kits:

Complement the instrument with the appropiate kit: 24 04 or 24 05 or 24 06 or 24 07

24 04 and/or 24 05 and/or 24 06 and/or 24 07

PH-BURETTE 24 1SAssembly code 24 00.• PH-BURETTE with one 10 ml syringe.

• Reagent inlet and outlet tubes.

• Bottle cap set, DIN 45 screw. Bottle not included.

• 230 VCA plug-in power supply.*

PH-BURETTE 24 2SAssembly code 24 20.• PH-BURETTE with two 10 ml syringes.

• Reagent inlet and outlet tubes.

• 2 Bottle cap set, DIN 45 screw. Bottle not included.

• 230 VCA plug-in power supply.*

Instrument composition. Versions

*For 115 VCA plug-in power supply, specify when ordering.

Kits composition

5

SO2 KitCode 24 06. • Support for electrode with magnetic stirrer.

• Cable and double platinum electrode, 52 64.

Total Acidity, T.A. KitCode 24 05. • Support for electrode with magnetic stirrer.

• Standard and electrolyte solutions.

• pH electrode, 50 21

• Temperature compensator, 55 31.

Generic kit, without electrodeCode 24 04.• Support for electrode with magnetic stirrer.

• Standard and electrolyte solutions.Note: the electrode must be chosen in accordance with the application.

Chloride KitCode 24 07.• Support for electrode with magnetic stirrer.

• Cable and silver electrode, 52 60.

• Electrolyte solution (KNO3 1M).

Authorised CRISON dealer:

Ask for the specifi c brochure of the products you are interested in.

pH, redox and ion-selective electrodes.

Lab pH-meters and conductivity meters.

pH, , O.D. and multimeter portables.

Precision termometers.

Buffer and standard solutions (pH, , O.D.)

SpecificationsPH-Burette 24

as pH-meter

Measuring ranges pH -2 ...16, mV 2000, ºC -20...150.

Resolution Standard, 0.01 pH, 1 mV, 0.1 ºC.

Measuring error (±1 digit) ≤ 0.02 pH, ≤ 1 mV, ≤ 0.2 ºC.

Reproducibility (±1 digit) ± 0.01 pH, ± 1 mV, ± 0.1 ºC.

Input impedance > 1012 .

Temperature compensation With ATC Pt 1000 probe or entering data using the keypad.

pH calibration In 1, 2 or 3 points, validity 0 h...7 days.

Automatic recognition of technical buffers: pH 2.00, 4.01, 7.00, 9.21 and 10.90 (at 25 ºC).

Special calibration, 1 selectable point between 0…14 pH.

Rejection of defective electrodes. Expired calibration warning.

as Burette

Stepper motor Resolution: 1/40000 of the syringe nominal volume (0.001 ml).

Syringe volume 10 ml.

Electrovalve Material in contact with liquids: PTFE and KEL-F.

Accuracy (as relative error) ≤ 0.2 %. (Vol. higher 10 % syringe)

Reproducibility ≤ 0.1 %. (volume higher 10 % syringe)

Languages English, Spanish, French, Italian.

Display Graphic backlit liquid crystal display, 128 x 64 dots.

Keypad Membrane, 7 keys. Guaranteed for up to 6 million strokes per key.

Material: PET with protective treatment.

Inputs and outputs Measuring electrode, BNC connector Reference electrode, banana Ø 4*.

ATC, Pt 1000 type, telephone or banana connector Ø 4*.

Stirrer control: On/Off and speed, RCA connector*.

External keyboard, miniDIN connector.

RS 232 C for PC or printer, telephone connector.

RS 232 C, CRISON to link different instruments, telephone connector.

* The PH-Burette 2S has two connectors of this type.

Power supply 230 / 24 VAC, 1.25 A, 30 VA external power supply.

Electrical safety Meets CE, UNE-EN 61010.

E.M.C. (Electromagnetic compatibility) Meets CE, UNE-EN 50081-2 and UNE-EN 50082-2.

Permitted ambient conditions Operating temperature, 10...40 °C. Storage and transport temperature –10...50 °C.

≤ 80 %, relative humidity, non condensing.

Enclosure ABS and enamelled steel

Physical parameters Weight: 4 kg approx., dimensions: 130 x 160 x 300 mmC

ode

1029

5-E,

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Other CRISON products

CRISON INSTRUMENTS, S.A. • Tel. +34 935 409 320 • Fax +34 935 559 300 • E-Mail crison@crison.es • www.crison.es

The specifications and products of this brochure are subject to change without notice.

Instruments developed and manufactured in Spain by: