Barnstead/Thermolyne Turner* Microprocessor-Controlled Spectrophotometers

Continuous spectral range of 330 - 999 nm accommodates many photometric analyses performed in clinical and industrial laboratories. SP-830, 850, 870 spectrophotometers use a plane diffraction grating monochromator. The large versatile sample fits both round (12 - 13 mm diameter) and standard square cuvettes.
Operation:
. Analog output to interface the instrument to a data processor, strip chart recorder, or other external analog device
. Serial RS232C and/or parallel centronics printer port for interfacing spectrophotometer with a computer or external printer
. User friendly software allows even inexperienced personnel to operate the unit without touching a manual
. Fan cooling ensures temperature stability
Application:
. Phosphorus analysis
. Iron analysis
. Chlorophyll analysis
. Color and clarity testing
. Turbidity
SP-830 Offers:
. 8 nm spectral bandwidth
. Easy-to-read wavelength selector is graduated in 1 nm increments
. Auto-zero function pushbutton setting of 100% TRANS and 0.000 ABS at one touch
. Five switchable built-in second-order stray light filters eliminate the inconvenience of exchanging filters
. Easy-to-read 3.5 digit LED
SP-850 Has all the same features of the SP-830, plus:
. Concentration mode which allows the concentration of a solution to be read directly from the unit, and conforms to GLP
. An expanded 4.5 digit LED allows high concentration and factor values to be displayed
. Decimal key permits a choice for decimal placement
. Factor mode permits you compensation for day to day variations in quantitative analyses
. Large, versatile keypad
SP-870 Offers all the features the SP-850 provides, plus:
. 5 nm spectral bandwidth for even higher resolution
. 20 x 2 LCD display
. Automatic stray light filter selection
. Digital wavelength selection with LCD readout