A2O Osmometer System Specifications
AUTOMATED MULTI SAMPLE CAPABILITY
An intelligently designed 20 position sample tube carousel accommodates the most common laboratory sample tube sizes and shapes. Low volume inserts and nesting cups can also be used.
TOUCH-SCREEN USER INTERFACE
With a menu-driven operating system, intuitive software control, and multi-language capability, the A2O provides a simple operating experience at your fingertip.
DIRECT PRIMARY TUBE SAMPLING
Automatically transfers a 100 µl sample for analysis. This eliminates the manual pipetting step and improves accuracy while minimizing sampling errors.
INTELLIGENT LIQUID HANDLING TECHNOLOGY
The pipette system features liquid level sensing and crash detection circuity. This eliminates the guesswork involved with sample preparation.
The closed-loop fluid management system in the A2O cleans after each sample to eliminate sample carryover and cross contamination. These features provide flexible sample processing while minimizing sample carryover and cross-contamination.
POSITIVE SAMPLE IDENTIFICATION
An integrated bar code scanner eliminates transcription errors. Sample IDs can also be entered manually. The onboard printer provides additional sample identification and results reporting benefits.
FLEXIBLE SAMPLING CAPABILITIES
Program the A2O to process samples in duplicate, triplicate, or any sampling protocol your laboratory requires.
ENHANCED LIS AND DATA MANAGEMENT CAPABILITY
The A2O features bi-directional data communications as well as an on-board results database with search capability. Connectivity is a snap with Ethernet and multiple USB ports.
BUILT IN QUALITY CONTROL
The A2O comes complete with full list of QC features including: A supervisor mode with password protection, ability to set range limits for control solutions, statistical monitoring of daily QC, and a system events log for diagnostic purposes.
Sample Test Volume -100 μL
Aspirated Sample Volume -150 μL
Sample Capacity -20-sample carousel
Test Time -Less than 3 minutes
Sample Throughput Can process -20 samples in less
than 1 hour
Units -mOsm/kg H2O
Calibrated Range Low: 0 to 2000 mOsm/kg H2O;
Full: 0 to 4000 mOsm/kg H2O
Resolution- 1 mOsm/kg H2O
Calibration -3-point calibration for low range,
4-point for full range
Communications Onboard printer, 10/100Mbps Ethernet,
4 USB 1.0/1.1/2.0, integrated barcode scanner
Accuracy1 0 to 400 mOsm: mean value ≤2 mOsm/kg H2O from nominal value
400 to 4000 mOsm: mean value ≤0.5% from nominal value
Precision1 (within run) Standard deviation ≤2 mOsm/kg H2O
between 0 and 400 mOsm; standard
deviation ≤ 0.5% of value between
400 and 4000 mOsm
Drift-1 Less than 1 mOsm/kg H2O per month
Temperature Effect-2 Recalibration recommended for ambient
temperature changes of 5°C (9°F) or greater
Storage Temperature -40°C to +45°C (-40°F to +113°F)
Sample Viscosity Up to 20 mPa•s (20 cP), higher viscosities may affect pipettor accuracy
Pipettor Accuracy <1%
Electrical Voltage 100-240 V AC (50-60 Hz)
Power Consumption 375 W