| ADVANTAGE |
• Automatic calibration by switch
• No ice formation in the lower cooling system: reliable measurements even for long working periods
• Measuring time approximately 1 min: valuable in case of serial measurements
• Measurements and determination microprocessor controlled
• Minimum sample volume: 50uL
• Disposable plastic measuring vessels save time and costs
• Automatic error detection and display
• Optional measurement documentation by integrated matrix printer: date, time, sample number and measuring result are printed
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| KEY DATA |
– Sample volume
50 uL – 30 uL
– Duration of measurement
approximately 1 minute
– Reproducibility (50ul)
≤+2 digit [… 400] mOsmol/kg H20
≤ +0.5% [400. 1500] mOsmol/kg H20
≤+1.0% [1500. 3000] mOsmol/kg H20
– Display
4,5 digits
– Measuring range
up to approximately 3000 mOsmol / kg in benzene, approximately 4000 to 5000 Dalton
– Resolution
1 mOsmol / kg over the entire measuring range in benzene,
approximately 3 digits / mMol/kg
– Crystallisation
by means of automatic injection of ice crystals into the solution
– Cooling
by means of two separate peltier cooling systems with heat dissipation by air
– Ambient temperature
10°C up to 35°C
– Integrated printer
alphanumeric dot matrix printer for automatic printina of results date, time and 4-digit-sample number
– Analog output
through standardized 5-pin socket, output voltage 1mV/digit for continuous recording of the temperature by potentiometer recorder.
– Rs data output
standardized interface RS-232C. Upon request our Osmoterm
software for Windows 98/NT/2000/XP is available.
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| MEASUREMENT |
Measurement: Freezing point osmometer
The total osmolality of aqueous solutions is determined by comparative measurements of the freezing points of pure water and of solutions. Whereas water has a freezing point of O °C, a solution with saline concentration of 1 Osmol/kg has a freezing point of -1.858 °C
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