Libra S50. Stand alone scanning UV/Visible spectrophotometer with Colour Touchscreen and USB interface for data/method storage. Split beam optical configuration with long life Xenon lamp source and 2nm bandwidth. Built in software modules include fixed wa

Specification	Data
Type	UV/Vis
Wavelength Range	190 - 1100nm
Wavelength Accuracy (+/-)	± 0.5nm across wavelength range
Wavelength Reproducibility (+/-)	± 0.1nm
Lamp Source	Xenon (PTR)
Beam	Split Beam
Optical System	Reference Beam Compensation
Bandwidth	2nm
Detector	Dual Solid State Silicon photodiode
Photometric Range	-4.000A to 4.000A
Stray Light	< 0.050%T at 220nm (NaI), < 0.050%T at 340nm (NaNO2)
Zero Stability	± 0.001A/hr at 500nm
Baseline Flatness	± 0.002A 220 to 900nm
Measurement Type	Fixed Wavelength, Abs/%T, Abs ratio, Abs difference, concentration (standard curve), concentration (factor), multiwavelength, kinetics, Life Science Methods, cell density, user log-on, Equation editor
Cell Compatibility	Cuvette, Microcell*, Variable Pathlength Cell*
Other Sample Containers	Test Tube*
Cell Holder	Single, 8 cell changer*, 5 position heated cell changer*, variable pathlength cell holder*
Accessory Options	Film holder*
Temperature Control	Temperature controlled cell changer*, Water Jacket*
Method Storage	Up to 90 on-board, unlimited via USB
Regulatory Compliance	21 CFR part 11*, IQ/OQ*
Printer	Thermal built in*, External via Export*
Data Output	Store, Print*, USB Drive*, Export to PC, PC Control*
Display	Colour Touchscreen
Export/ Data Storage	Internal Memory, USB Drive*, Bluetooth*, USB cable to PC
Data Interface	USB
Languages	English, French, German, Spanish
Power Requirement	85 to 264V (100VA)
Weight	17.5Kg (38.6lb)
Dimensions (WxDxH)	535 x 440 x 235mm (21.3 x 18.1 x 12.6 inches)
Certification	CE
Noise	<0.002A peak to peak, 0.0008A RMS near 2A at 500nm. <0.00020A RMS at 0A at 500nm over 20 measurements
Photometric Accuracy	± 0.002A at 0.5A, ± 0.004A at 1A, ± 0.006A at 2A at 440nm, 456nm, 546.1nm, 590nm, 635nm ± 0.005A using 60mg/L K2Cr2O7
Photometric Reproducibility	± 0.002A at 1A
Scan Speed	>2400 nm/min
Spectral Scanning	Yes (up to 1100nm)

Designed for busy multi-user laboratories
The Biochrom Libra S50 model is robustly designed to deliver reliable, low maintenance UV/Visible spectrophotometry in environments with multiple users. Users can quickly and easily walk up to the instrument, set up a sample, select the appropriate measurement protocols and collect the results. The convenient USB port enables individual users to load personal methods and transport data.

Easy to use
Colour touch screen user interface with menu driven software and simple intuitive icons is easy to both use and to learn. Results can be easily transported to a remote PC by memory stick for analysis later, or link to a PC directly with PVC software (included). Full PC control with Resolution software.


Built in Software
Full suite of software applications provided as standard with real choice of data export methods. Trace Manager enables you to manipulate data stored on the instrument or USB memory stick. Multi level User log on facility allows supervisors to restrict access to software functionality allowing secure methods to be set up.
Software Modules  Function
Single Wavelength Measurement  Fixed wavelength, Abs/%T, and Concentration (factor)
Wavelength
Scanning  Sample overlays, automatic feature detection and post run data manipulation
Concentration Standard Curve  Quantitation using calibration curves with multiple standards and a choice of curve fits
Kinetics  Serial (or parallel measurements with optional cell changer) including sample overlays and post run data manipulation
Life Science
Methods  DNA, RNA & Oligo concentration and purity measurement with optional wavelength scanning. CyDyeTM DNA quantitation. Tm calculation. Protein concentration by direct UV measurement or Bradford, Biuret, Lowry or BCA colorimetric methods
Equation Editor  Turn your instrument into a "custom application analyzer" by setting up stored methods including calculations based on measured sample data, for example: Absorbance difference and ratios.

Easy to Connect
Two USB ports are provided as standard. One is conveniently located by the user touchscreen to enable USB memory sticks (flash drives) to be be used to both store data and methods in secure and ASCII formats. Particularly useful for laboratories wishing to clone methods between multiple instruments. The other USB port is on the side of the instrument is used for PC communication, control, software update and print via computer (PVC). All stand-alone Biochrom Libra instruments offer users a choice in export and print functionality with selection parameters stored as part of any method.

   Export to PC via USB cable (standard)
   Built in printer (optional)
   Export to a PC via Bluetooth (optional)
   Full PC control with Resolution Software (optional)

Resolution PC Software
Optional Resolution PC software offers users extra flexibility on data collection and manipulation. Running under Microsoft Windows XP, Vista and Windows 7 operating environments with an Office 2007 look and feel Resolution has the power to work in the way you want. Resolution is available in the following different modules to meet your application and budgetary requirements.

   Resolution Lite for Quick Read and fast scanning only
   Resolution for all routine measurements
   Resolution Life Science for nucleic acids, proteins and cell density measurements
   Resolution CFR if you need full 21 CFR part 11 compliance

Cell holders
The Biochrom Libra S50 is supplied with a 10mm pathlength cell holder.


Easy to use
Colour touch screen user interface with menu driven software and simple intuitive icons is easy to both use and to learn. Results can be easily transported to a remote PC by memory stick for analysis later, or link to a PC directly with PVC software (included). Full PC control with Resolution software.


Built in Software
Full suite of software applications provided as standard with real choice of data export methods. Trace Manager enables you to manipulate data stored on the instrument or USB memory stick. Multi level User log on facility allows supervisors to restrict access to software functionality allowing secure methods to be set up.