Brand Titrette Bottle-mounted Burette, 50 ml, with RS232 Interface, DE-M, 4760261

The Titrette 50 ml with an RS232 interface has the same margin of error as the standard version, but also features a data interface. This allows the titration value to be transferred directly to a PC or a titration log, rather than having to type it out from the display.

RS232 instead of manual transfer

With a 50 ml volume, these are usually runs involving high consumption of titrant, which also need to be documented, for example in water or environmental analysis. The RS232 interface transfers the consumption value directly to a titration log or a LIMS connection, without the need for an additional transfer step.

Error limits of the 50 ml version

For 50 ml, Brand specifies an accuracy of 0.06 per cent / 30 µl and a coefficient of variation of 0.02 per cent / 10 µl, identical to the Titrette without a PC interface in the same volume range. The RS232 interface does not affect dosing accuracy; it merely extends the output of the measured value.

Typical applications

• Titrations involving high consumption of titrant and where documentation is required
• Water and environmental analysis with electronic data logging
• Connection to titration or LIMS software via the serial interface
• Batch titrations where manual transfer from the display would be too prone to errors

Selection guide: RS232 for high consumption

With a 50 ml volume, batch runs often involve high consumption of titrant, for example in water and environmental analysis, where every result must be documented. The RS232 interface handles the logging here, eliminating the need to read off and type in each value individually. For lower consumption, 10 ml and 25 ml options are available, also with or without a PC interface. For series with many repetitions, the time saved compared to manual recording adds up significantly, particularly when multiple titration stations with different volumes are being documented in parallel.

Titrette RS232 versus glass burette and Dispensette

A 50 ml Class A glass burette requires the value to be recorded manually, whilst the Titrette RS232 transmits it electronically. Compared to a Dispensette, the Titrette is designed for continuous summation during titration, rather than for a fixed repeat dose.

Technical details

Use and maintenance

The Titrette is screwed directly onto the stock bottle containing the measuring solution using one of the three PP bottle adaptors supplied (GL 32, S 40, NS 29/32) directly onto the storage bottle containing the standard solution; the telescopic suction tube can be adjusted to bottle heights between 170 and 330 mm. Before first use and after each bottle change, the system must be vented, as with any piston burette, to ensure that no air bubbles in the cylinder affect the dosing accuracy. The return tube allows any accidentally dispensed excess titrant to be returned to the bottle, rather than having to restart the titration. Two brown-tinted light-protection windows shield light-sensitive titrants without the need to cover the bottle completely. The counter is powered by two AAA/UM4/LR03 micro-batteries, which can be replaced without tools as soon as the display indicates a low battery voltage. A mains connection is not required; the device remains operational even at workstations without a socket.

Scope of delivery

• Titrette bottle-mounted burette for GL45-threaded bottles
• Marked DE-M
• Quality certificate
• Telescopic suction tube, 170 to 330 mm
• Return tube
• 2 micro batteries (AAA/UM4/LR03)
• 3 PP bottle adaptors (GL 32, S 40, NS 29/32)
• 2 brown-tinted light-protection windows

Frequently asked questions

• What data does the RS232 interface output? The titration consumption value, as specified by the manufacturer, for direct transfer to a PC or analysis software.
• How accurately does the Titrette dispense 50 ml via RS232? Accuracy: 0.06 per cent or 30 µl; coefficient of variation: 0.02 per cent or 10 µl, identical to the version without a PC interface.
• Which bottle threads are compatible with the Titrette? GL45 directly; via a PP adapter, also GL 32, S 40 and NS 29/32.
• What is included in the scope of delivery? The Titrette with RS232 interface, telescopic suction tube, return tube, three bottle adaptors, two micro-batteries and a quality certificate.

Individual requirements and procurement service

You can enquire about suitable bottle adaptors, replacement suction tubes or other accessories for the Titrette range via LT Laborhandel’s procurement service. Contact us at lt-laborhandel.com/service.