2 System Description
301-7146 English Rev B 11/02/2011 Operator’s Manual NA 24
Specific gravity is not measured by using a strip pad. A small flowcell is
attached to a SG meter and the raw video from the linear photodiode
array inside the device extends the measurement range to 1.060.
Color and Clarity
A Color and Clarity Module measures the color and clarity of a sample
aspirated by the instrument.
A narrow tubular flowcell equipped with a color sensor is located inside
the Color and Clarity Module. When passing through the flowcell, the
sample is illuminated with a white light and the color sensor uses RGB
photodetectors to measure the color of the sample. The sample is
illuminated at a 90 degree angle with a second LED white light to
measure the amplitude of light scattered within the flowcell and determine
the clarity of the sample.
A photodiode array sensor is used to obtain the tone and hue of the urine
sample. The colors are reported as codes representing user-defined
color names.
System Components
Sampler
The sampler moves the test tube racks from the load station (right side of
the instrument) to the pipetting station, and then to the unload station (left
side of the instrument). The test tube racks are presented to the pipetting
station where the presence of a tube is detected whether or not a barcode
label is attached to the tube. The sample is aspirated from the tube for
analysis. The sampler signals when the unload station is full.
Barcode Reader
The barcode reader reads the racks’ identifiers so that patient samples
can be related to positions within a known identity rack. When a barcode
label is attached to a sample tube, the barcode reader reads the label and
provides the patient identification data to the system.
To Next Page
Loading...