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.

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

The 3900 is ideal for:

Clinical medicine and medical research

IVD test development

Bio-pharmaceutical monitoring and process control

Pharmaceutical research and development

Cell culture and bacterial fermentation

Advanced Instruments also supplies ControLine Products

ClinitrolTM 290 mOsmol Reference Solution

Protinol® Protein-based Controls

RenolTM Urine Osmolality Contols

Linearity Osmolality Controls

Fully automated with continuous throughput. Batch testing is efficient with the 3900’s sample cassettes that can be loaded up to four at a time with each cassette holding 10 samples. The 3900’s sample probe is cleaned between each test to eliminate carry-over.

Method – Freezing Point Depression Osmometry
Osmometry measures the total molar concentration of dissolved solids in any solution. The freezing point of a solution is depressed in direct relation to the amount of solute in solution.

 

Advanced® Model 3900 Osmometer Technical Specifications

Electrical

Power Requirement: 100 to 130 VAC (50/60 Hz) or 200 to 250 VAC (50/60 Hz)
Fuses (2): 250V time delay (Type T): 5-Amp (100-130 VAC); 2.5-Amp (200-250 VAC)
Power Consumption: 350 Watts
+C8Memory Backup: Integral lithium cell; 2-year life (typical); (not user-replaceable)

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

Ranges:
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

Linearity:
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

Dimensions   
54.6 cm x 54.6 cm x 50.8 cm
(21.5" H x 21.5" W x 20.0" D)

Weight  
Net:  30.0 kg (66.0 lbs.)
Shipping: 47.7 kg (105.0 lbs.)

Warranty: One-year limited warranty on workmanship and all parts except glass, plastic, and parts warranted by their makers.