WAT4626

The Gonotec® Osmomat® determines the total osmolality of aqueous solutions. The instrument requires very small sample volumes and can thus be applied for extreme measuring tasks. Its rapidity allows serial measurements in a very short time. 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 0°C, a solution with saline concentration of 1 Osmol/kg has a freezing point of -1.858°C.

Ease of use: controlled with a touch screen display and step by step user-guidance for all measurement functions
Calibration: automatic, two or three point calibration
Design: robust design that makes it easy to handle and maintain
Results can be sent to the optional built in printer (WAT4632 and WAT4634 only)
For data transfer to a PC it can be connected via USB or RS232
Quality management: QM assistance for the laboratory supervisors
Automatic calibration by using the Gonotec® calibration standards

Display	5.7" LCD touch screen
Initiation of the cryst. process	By means of the tip of a stainless steel needle covered with ice crystals which is controlled automatically
Cooling	By means of two separate peltier cooling systems with heat dissipation by air
Lower Cooling	Electronic temperature regulation, deviation ﹤±0.1°C
Sample Volume	WAT4632/WAT4626: 50μL
Sample Volume	WAT4630/WAT4634: 15uL
Test Time	About one minute
Resolution	1 mOsmol/kg
Units	mOsmol/kg
Range	0 up to 3000 mOsmol/kg
Reproducibility	WAT4632/WAT4626: ≤±2 digit [0.. 400] mOsmol/kg; ≤±0.5% [400.. 1500] mOsmol/kg; ﹤±1.0% [1500.. 3000] mOsmol/kg
Reproducibility	WAT4630/WAT4634: ≤±2.0% [0.. 3000] mOsmol/kg
Linearity	Less than ±1% in calibrated range
Output Ports	DTE RS-232, USB
Ambient Temp.	10 to 35°C
Power supply	100-240V, 50/60 Hz, 80 VA
Dimensions	220 x 205 x 360 mm (D x W x H)
Weight	Approx. 6.4 kg