Biochrom Libra Instruments

 Features

• Single beam filter based colorimeter covering 440-680nm
• Rugged, portable and easy to use
• Extremely versatile and ideal for QC and educational applications.
• Excellent value for money 
• Rechargeable battery version available

Description
The Libra S2 is a small, robust, easy to use instrument that has been designed with both the student and field user in mind. It is ideal for teaching principles of science and analysis in schools and colleges, as well as being rugged enough for measurements in hot or demanding environments such as QC measurements in industrial processes or remote location health clinics where simple diagnostic tests need to be made.

The samples can be measured in either standard or semi micro 10mm pathlength cuvettes or in 16mm diameter test tubes (adapters for 10/12 mm test tubes are available). The instrument surface is designed for ease of cleaning and decontamination. Rechargeable NiMH batteries are included in the Libra S2B and they will operate for almost a month on a single charge to provide complete portability.

The instrument measures in Absorbance and % Transmission mode as well as in simple kinetics, enabling changes in Absorbance over time and reaction rates to be determined (readings are taken approx. every second). It may be used to cover the 400 – 700 nm wavelength range as it has an integral, colour coded rotating wheel containing filters at 440, 470, 490, 520, 550, 580, 590 and 680nm. These are made from coloured gelatin and are encased in glass, so that the instrument can be used in “tropical” conditions. A filter is selected by moving the wheel until the required wavelength is displayed in the window above the cell compartment.

The instrument may be linked via a serial lead to either a serial printer for hardcopy output or to a PC for download of results to spreadsheet. It has an analogue output, and may also be connected to a chart recorder using a standard 2 x 4 mm socket to output absorbance-time data when in kinetics mode.

Spare Parts
80-3000-58 Spare lamp
80-3000-59 Spare filter set
80-3001-25 2 rolls printer paper plus ribbon
80-2084-11 10mm pathlength, volume 2.5mL, polystyrene, pack of 100
80-3000-77 10mm pathlength, minimum volume 800μL, UV plastic, semi-micro, pack of 100

Full Technical specifications are shown below. Optional accessories marked *

	File Description	File Size
	Biochrom Libra Range of Spectrophotometers and Colorimeters Brochure Spectrometers and colorimeters	771 KB
	Biochrom Libra Spectrophotometer Order Guide Cuvettes and accessories for the Biochrom Libra range of spectrophotometers and colorimeters for use in industrial and life science laboratories.	409 KB
	Biochrom Libra Range of Spectrophotometers and Colorimeters Brochure French Product range brochure for the Biochrom Libra range of spectrometers and colorimeters	983 KB
	Biochrom Libra Spectrophotometer Order Guide in French Biochrom Libra accessories and cuvettes for UV/Vis spectrophotometers and colorimeters	705 KB