Advanced Instruments - Advanced® Model 3900

Manufactured by  Advanced Instruments
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Advanced Instruments Multi-Sample Osmometer, Model 3900, for Osmolality Measurement

The Advanced Instruments Model 3900 Multi-Sample Osmometer determines the osmolality of solutions using freezing point depression (FPD). It is ideal for serum, urine or other bodily fluids in clinical applications, and media or formulations in pharmaceutical, biotech or industrial applications.

Automated and multi-sample, it is designed to process a 200-300 ΜL sample, 90 second test time, and approximately 30 samples per hour. The Model 3900 provides the best accuracy and precision in the market today.

200-300 ΜL provides the greatest precision in a variety of applications.
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Features of Advanced® Model 3900
  • Internal diagnostics
  • Fully automatic with continuous throughput
  • On-board printer
  • Stat sample capability
  • Connects easily to external barcode scanner
  • Frost-free cooling chamber
  • On-board statistical analysis
  • Stores up to 30 test results
  • Multi-language operation
  • Automated calibration
  • Hot-Line® Technical Service available 24/7
General Specifications
Depth 20 in
Height21.5 in
Width 21.5 in
Power Requirements 100 to 130 VAC (50/60 Hz) or 200 to 250 VAC (50/60 Hz)
Peak Power350 W
Weight66 lbs
Additional Specifications

Sample Volume: 0.20 to 0.3 mL
Sample Capacity: Up to 30 samples at one time, continuously reloadable
Readout: 20-character vacuum fluorescent display
Units: mOsm/kg H2O

Low: 0 to 1550 mOsm/kg H2O
High: 1450 to 4000 mOsm/kg H2O

Resolution: 1 mOsm/kg H2O
Communications: On-board printer, DTE EIA-232/V.24 (RS-232) serial port and optional barcode scanner

Performance at Reference Conditions
Low Range: Less than ±0.5% from a straight line between 0 and 1500 mOsm/kg H2O
High Range: Less than ±1.0% from a straight line between 1500 and 4000 mOsm/kg H2O
Repeatability: 0 to 400 mOsm: ±2 mOsm/kg H2O (1 S.D.) 400 to 4000 mOsm: ±0.5% (1 S.D.)
Drift: Less than 1 mOsm/kg H2O per month

Performance Over Operating Conditions
Temperature Effects: Less than 1 mOsm/kg H2O for every 5°C (9°F) ambient temperature change
Operating Conditions Temperature:
Low Range: 18°C to 35°C (64°F to 95°F)
High Range: 18°C to 30°C (64°F to 86°F)
Humidity: 5 to 80% relative humidity (non-condensing)
Storage Temperature: -40°C to +45°C (-40°F to +113°F)
Start-up Time: Actual time from power-on to “Osmometer Ready” varies according to ambient temperature and humidity -- typically 3 to 10 minutes. Maximum throughput may require up to 30 minutes of equilibration time from power-on.
Test Time: 90 seconds per sample (typical)
Sample Throughput: Approximately 30 samples per hour at 23°C (73°F); less at higher ambient temperature and in high range

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