Semi-automatic titrators “PH-Burette”.
A great pH-meter with integrated burette.
Incredible price! Infinite possibilities…
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Quality at a reasonable price
The optimum combination between a pH-meter and a digital burette
PH-Burette 24
A unique instrument in the world of pH-meters.
Two versions: with one or two working stands.
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.
Burette self-calibration
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.
Applications
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.
• Solution preparation.
• Enzyme preparation.
• Total acidity determination in foods.
• Chlorides.
• SO2 (sulphurous) in wine.
• pH measurement and regulation, pH-STAT.
• etc, etc …
PH-Burette 24 1S
+ Total acidity Kit.
2
Key features and main functions
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.
Example of sequential dispensing:
...as a Burette
■ Different dispensing modes: repetitive, manual and sequential.
■ Programmable dispensation volume: from 1 µl up to 999 ml.
■ Automatic syringe recharge.
User
actuation
...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.
Volume
Dispensed
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.
PH-Burette 2S
The 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.
PH-Burette 24 2S with 2 Kits: acidity kit and SO2 kit.
3
Data visualization
Display examples
Recommended printer, optional
Measurement of pH and temperature
Using the printer, all
performed tasks are registered.
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
CT-S280 printer,
code 82 01
The programmed time between 2 dispensing is 5 s.
The volume 1.300 ml was dispensed in 43 seconds
CRISON Capture software, optional
Details on pH calibration
The communication software
between PC and PH-Burette
24 makes easy the data
capture and availability.
CODE 24 10 includes software
and connection cable.
Example of display.
Obtain data during titration.
Certificates
All 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.
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Instrument composition. Versions
PH-BURETTE 24 1S
Assembly 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.*
Complement the instrument with the appropiate kit:
24 04
or
24 05
or 24 06 or
24 07
PH-BURETTE 24 2S
Assembly 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.*
Complement the instrument with 1 or 2 kits:
24 04 and/or
24 05 and/or 24 06 and/or 24 07
*For 115 VCA plug-in power supply, specify when ordering.
Kits composition
Generic kit, without electrode
Code 24 04.
SO2 Kit
Code 24 06.
• Support for electrode with magnetic stirrer.
• Standard and electrolyte solutions.
Note: the electrode must be chosen
in accordance with the application.
• Support for electrode with magnetic stirrer.
• Cable and double platinum electrode, 52 64.
Total Acidity, T.A. Kit
Chloride Kit
Code 24 05.
Code 24 07.
• Support for electrode with magnetic stirrer.
• Standard and electrolyte solutions.
• pH electrode, 50 21
• Temperature compensator, 55 31.
• Support for electrode with magnetic stirrer.
• Cable and silver electrode, 52 60.
• Electrolyte solution (KNO3 1M).
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Specifications
Other CRISON products
PH-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.
pH, redox and ion-selective electrodes.
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
Lab pH-meters and conductivity meters.
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
pH, , O.D. and multimeter portables.
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 mm
Code 10295-E, Sept. 2006 edition
Precision termometers.
Authorised CRISON dealer:
Buffer and standard solutions (pH, , O.D.)
Instruments developed and manufactured in Spain by:
Ask for the specific brochure
of the products you are
interested in.
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.