Duo Chemistry autoanalyzer

DUO301: Faster, stronger, better

Physical characteristics
SIZE / WEIGHT Height: 49 cm (19.3 in) Weight: 55 kg (105.8 lbs.)
Depth: 62 cm (24.4 in)
Width: 85 cm (33.4 in)

POWER SUPPLY 100 -240 Vac, 50 / 60 Hrz, single phase with ground
Independent on-off switch for refrigerated reagent plate
Fuse compartment / fuses: 3.15 Amp @ 230 Vac, 4 Amp @ 115 Vac Power consumption: less than 200 VA (external PC excluded) Ground resistance: less than 0.1 Ohm
Leakage current: less than 2.5 mA

SAMPLING ARMS 2 sampling needles, 110 mm needle stroke
Capacitive liquid level detector Needle shock sensor

DILUTER SYRINGE Long life plunger
Syringe capacity, 368 µL Syringe resolution, 0.07 µL

HYDRAULIC 10 self-priming peristaltic pumps (life 1000 hrs.) SYSTEM with replaceable neoprene cassette (life 500 hrs.)
2 vacuum pumps
2 pinch valves Manifold
Tanks*: Water, 20 L; Cleaning solution, 2 L; Waste, 20 L
* Equipped with level sensor and safety connections

WASH STATION Needles: 6 dispensing, 5 aspirations, 1 cleaning
(8 step washing sequence for each cuvette)

REAGENT TRAYS 2 removable trays
30 + 30 bottles, 50 mL or 24 mL (up to 3000 mL total)

SAMPLE TRAY (DUO standard) Removable tray, 60 numbered positions,
tubes of 12 – 13 mm, 5 – 7 mL / cups of 0.5-1.5 mL (cups require a metal adapter for level detection)
(Optional) Removable tray, 20 + 20 numbered positions, 20 tubes of 12 – 16 mm / 20 cups (3,5 mL type)

CUVETTE ROTOR 80 washable BIONEX(r) cuvettes REACTION CELLS which allow up to 30 000 tests per rotor
Optical path 6 mm, 210 – 350 µL reaction volume
100W heating resistance, temperature sensor, safety thermostat

OPTICAL GROUP 1 halogen lamp (6 V, 10 W) with extended UV emission 2 focusing lenses, optical glass
10-position filter disk: 8 positions provided with interference filters of 340, 405, 505, 546, 578, 600, 650, 700 nm wavelengths, 1 free position and 1 solid position for dark reading
Direct reading reaction cuvettes, 6mm optical path ±2 nm on peak wavelength, band pass of ±10 nm

PHOTOAMPLIFIER Photoelectric detector
Signal amplifier
Response range, 340 nm to 900 nm Photometric range, 0 to 3 Abs
Linearity, ±0.5% from 0.1 to 1.5 Abs
Precision: 1% CV or 1 mAbs min. (From 0.1 to 1.5 Abs)
Stability: daily reader offset, less than 1% drift per day

CONTROL Real-time multitasking microprocessor-based control
Easy access to the electronics

Operation features

PIPETTING Volume: sample, 2 – 300 µL; reagent, 5-350 µL
Precision: 1.5 CV% at 2 µL; 1 CV% at 4 µL Mixing by sample needle upon dispensation

REACTION volume, 210 – 350 µL

SAMPLE In-needle dilution if allowed by method’s sample volumes DILUTION Automatic pre-dilution in a reaction cuvette, up to 1:100

TEMPERATURE Reagent refrigeration, circa 12 °C below room temperature CONTROL Reaction cells, heating unit can be set from
room temperature up to 42 °C ±0.2 ºC (108 °F ±0.5 ºF)

TYPES OF TESTS Endpoint, Bichromatic endpoint, Differential endpoint,
Differential endpoint sample blank, Fixed Time, Kinetic, Kinetic bichromatic
TEST RUNS Random / Urgent

MEASUREMENT 300 tests/hour in single reagent mode
RATES Maximum incubation + reading time: 612 seconds Typical precision, endpoint 2.0 CV% / kinetic 2.0 CV% Carry-over, lower that 15 parts per million

START-UP The start-up procedure is run daily: self-test,
reader offset of optics, wash and check of all cuvettes

CALIBRATION Reagent blank subtraction, 1 to 8 standards per test method Linear: factor, linear, linear regression (standard’s repetitions)
Nonlinear (5 interpolation types): cubic-spline, poly-linear multiparameter, logit-log four parameters and five parameters
Free standard / control positions on all the sample plate Results can be recalculated when changing factor or curve

MAINTENANCE Procedures programmed by component life counters

PRINTING Single test, complete sample, work sheet, method and QCs REPORTS Automatic sample reports upon test completion if requested

NEEDLE Sampling needle washed internally and externally
WASHING with system solution after every operation

POWER Standard VDE removable power cord

EXTERNAL PC USB port

HOST/ LIS Ethernet LAN (samples, work list, results) Standard ASTM ASCII protocol

WORKLIST/ For each worklist: unlimited number of samples, unlimited SAMPLES number of tests, up to 99 sheets of tests per worklist.
Sample-patient ID codes
Tests archive with powerful search tools Patient management

EXTERNAL COMPUTER

TEST METHODS Unlimited number of methods in PC memory 100 active methods

QUALITY Three-level controls per test, one month monitoring CONTROL Reagent/calibrator/control lot monitoring,
Exclusion of failing results from graphic and statistics

ERROR LOG Automatically stored at run-time, can be viewed or printed
Powerful on-line monitoring