Loser Type 21 Cryometer for benzene solutions

Cryometers are instruments used to determination the molecular concentration of chemical solutions.

A small amount of benzene solution (100-200µl) is used to measure the freezing point. Based on this value, the analyser calculates the molality and displays it.

Features and benefits

• Built in thermal printer and scanner for sample and result documentation.
• Illuminated LCD menu with graphic display and touch operation.
• Selectable languages. (German, English, French, Spanish, Portuguese, Swedish, Italian).
• Password protection with user administration for GLP-protocols.
• Variable 2nd and 3rd calibration points.
• Single use plastic tubes.
• Blocking of measuring tube or needle by freezing in stand-by mode is counter-acted by regular automatically defrosting.
• Needle can be rinsed with water or disinfection solution.
• Real time clock data and user ID captured with results and calibrations for quality/legal requirements.
• Wide input voltage range 100-230V suitable for all countries
• Low power consumption.
• MS-Windows software (OsmoWinn 3.1) for data transfer included.
• Bit-rate parity and flow control of the RS232 interface can be configured via the menu.

Operation

• Switch on instrument, wait for the ready display (approx - 3 minutes).
• Place 100-200µl sample in the sample tube 
• Place the sample tube onto the measuring head.
• Lower the measuring head (The sample tube is dipped into the cooling slot).
• Enter sample number using the touch display or the built in scanner (These entries can also be made after measurement).
• Super-cooling is reached after 45 seconds and the needle is dipped into the sample.
• As freezing point is reached, the display shows the measurement value in mmol/kg and the instrument gives an audible tone.
• The measurement value is stored in the memory.
• Slide measuring head from cooling slot and remove the sample tube.
• Wipe the thermistor with a soft tissue.

Calibration

• The zero point is calibrated with pure benzene and a standard point with a benzene solution of 200 mmol.
• An additional third point i.e. 400 mmol solution can be used to calibrate, whereby the linearity is raised by higher concentrations above 300 mmol
• Additionally, it is possible to modify the 2nd and 3rd calibration point to wide limits.

Password protection

• 1-12 digit password set-up.
• Admistration rights access.
• Basic level access.
• 16 user passwords
• Password protection can be enabled/disabled.

Extra Accessories:

• Analogue output for X-Y plotter.
• Thermistor
• Freezing Needle
• Thermal printer paper.