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Mindray BS-120 Service Manual

Mindray BS-120
267 pages
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2 System Performance and Workflow
2-8
2.3.2 Timing
2.3.2.1 Timing for Main Components
The working period of BS-180/BS-190 is 16 seconds, so its throughput is 225
tests/hour (3600/16). During each working period, the reaction disk rotates two
times and stops two times. During each stop, the sample probe dispenses R1
and sample and stirs the sample, and dispensing R2 is done in a single period.
Therefore, the throughput is affected by single or double reagent tests. The
practical throughput is affected by reaction time and cuvettes replacement.
The system collects photometric data two times during each period. Therefore,
the interval between two absorbance readings is 16 seconds for each test.
The movements of major moving parts are shown in the following table.
2.3.2.2 Timing for Sample Probe
a. Lifting up from the wash pool
b. Rotating to the position above the sample/reagent disk
c. Lowering down to the sample tube
d. Aspirating sample and dispensing back a little
e. Lifting up from the sample tube
f. Rotating to the position above the reaction disk
g. Lowering down to the reaction cuvette
h. Dispensing the sample
i. Lifting up from the reaction cuvette
j. Rotating to the position above the wash pool
k. Lowering down to the wash pool
l. Washing inside and outside of the sample probe

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Mindray BS-120 Specifications

General IconGeneral
Throughput120 tests/hour
DisplayLCD touch screen
Reaction Temperature37°C
Light SourceHalogen lamp
Photometric Range0-3.0 Abs
TypeBench-top, discrete, random access
Sample TypeSerum, plasma, urine
ConnectivityRS-232, USB
Analysis MethodPhotometric
Sample Volume2-35 µL
Reaction Volume180-500 µL
Wavelengths340, 405, 450, 505, 546, 578, 630, 700 nm
ControlInternal quality control, calibrator
CleaningAutomatic cleaning system
Measurement PrincipleAbsorbance
Power SupplyAC 100-240V, 50/60 Hz
Operating EnvironmentTemperature 15-30°C, humidity 35-85% RH

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