Laboratory Equipment & Services Information System by Centralized Laboratory Management Office (CeLMO)

The PhoenixSpec Nephelometer is a solid state instrument that uses a tungsten-filament lamp as a light source, a 90° detector to monitor scattered light and a transmitted light detector. The instrument’s microprocessor calculates the ratio of the signals for the 90° and transmitted light detectors. The ratiometric technique compensates for color and/or light absorbing materials, and for fluctuations in lamp intensity.

SPECIFICATION: Range ..............................McFarland 0.10 – 4.50 Accuracy ..........................0.5 ± 0.08 McFarland 2.0 ± 0.1 McFarland Repeatability....................0.5 ± 0.04 McFarland 2.0 ± 0.1 McFarland AC Mains Power................120 VAC ± 10%, 60 Hz 230 VAC ± 10%, 50 Hz Battery..............................Four Size AA Alkaline Cells Battery Lifein-Use, # Tests ..................2300 Tests Ambient Operating Conditions ........................20°C to 30°C 0 to 90% RH at 30°C; 0 to 80% RH at 40°C; 0 to 70% RH at 50°C Storage Temperature Range Nephelometer: ................-40°C to 60°C (-40°F to 140°F) Calibrators: ........................5°C to 60°C Sample Tube Size ............BD ”L”tube, 16 mm diameter, 75 mm height, Lamp Life..........................~ 400,000 readings

The BD PhoenixSpec™ nephelometer is a portable device designed to measure the turbidity of microbial suspensions equivalent to McFarland standards of 0.10 to 4.50.