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Freezing Point Osmometer

Instructions

K-7400S Semi-Micro Osmometer

Document no. V3700

Summary of Contents for K-7400S

Page 1: ...Freezing Point Osmometer Instructions K 7400S Semi Micro Osmometer Document no V3700...

Page 2: ...CET Fax 49 30 8015010 Email support knauer net KNAUER Wissenschaftliche Ger te GmbH Hegauer Weg 38 14163 Berlin Germany Phone 49 30 809727 0 Fax 49 30 8015010 Internet www knauer net E Mail info knau...

Page 3: ...acking and setup 11 5 1 Location requirements 11 5 2 Unpacking the device 11 5 3 Power supply 12 6 Startup 14 7 Operation 15 7 1 Connecting the measuring head 15 7 2 Standby position of measuring head...

Page 4: ...ple list 32 10 6 Setup 33 10 7 Working parameters 33 10 8 Report Graph 35 10 9 Search function 35 11 Maintenance and care 37 11 1 Cleaning the stirring wire and the thermistor 37 11 2 Function checks...

Page 5: ...Semi Micro Osmometer K 7400S instructions V3700 Table of Contents iv 14 5 Disposal 44 14 6 KNAUER software license agreement 44...

Page 6: ...ally can be equipped with a printer Furthermore the device can be controlled via the EuroOsmo 7400 software 1 2 Intended use Note Only use the device for applications that fall within the range of the...

Page 7: ...Function START STOP Starts a measurement or calibration run If this button has no specific function on the screen it causes to return on the main screen With this button every running measurement can...

Page 8: ...icro Osmometer K 7400S instructions V3700 Product information 6 1 3 3 Rear view Legend 1 RS 232 connector 2 Measuring head con nector 3 Ventilator 4 Power switch 5 Power connector Fig 2 Rear view 5 4...

Page 9: ...KNAUER or a com pany authorized by KNAUER Freezing Point Osmometer K 7400S Power cable RS 232 connection cable Measuring head Pack of sample tubes 400 mOsmol kg calibration solution 850 mOsmol kg cali...

Page 10: ...e companies for laboratory work Power cable Defective power cables are not to be used to connect the device and the power supply system Power strip If several devices are connected to one power strip...

Page 11: ...repair you are required to decontaminate the device in a technically correct manner All contaminated devices must be properly decontaminated by a special ist company or the operating company before t...

Page 12: ...mbol Meaning Warnng Signs Electric shock hazard Electrostatic discharge hazard damages to sys tem device or components can occur Biohazard CE Mark A device or system marked with CE fulfills the produc...

Page 13: ...vice on one side At least 10cm if there are devices set up on both sides At least 15cm to the cooler fan on the rear The device should not be exposed to major temperature fluctuations during measureme...

Page 14: ...hat the specifications stated in Technical Data are met But check beforehand to use power cables admitted for use in your count ry Replace defective power cables only with accessories from KNAUER Deta...

Page 15: ...onnect the power plug The osmometer needs a three core power plug Electric shock Danger of electric shock from damaged cables Make sure that the power cable is not subjected to high forces The power c...

Page 16: ...in injuries Avoid direct contact with the cooling compartment Wear protective gloves Electronic defect Damage to the electronics is possible if the device is switched on when it is connected or discon...

Page 17: ...a stirring wire and the thermistor as temperature sensor The measuring head cable is to be plugged into the connector on the back of the device The sample tube filled with the exact volume of calibrat...

Page 18: ...Note Generally the measuring head should be stored with the attached sample tube While working with the osmometer use the four columns on top of the device for temporarily set down the measuring head...

Page 19: ...ture rea ches the freezing point 0 C in case of pure water Fig 6 Fig 6 Temperature time curve for pure water The freezing point of a solution is below 0 C Fig 7 The freezing point depression T is a me...

Page 20: ...us field As shown in Fig 8 it will take you to the relevant menu points 7 5 Menu guide Starting with the cursor on the rhombus field further menus become accessible in an endless loop by pushing the v...

Page 21: ...e calibration points The first field is fixed at 0000 At least 2 calibration points are necessary for regular mea surements From this screen the calibrat ions will be started see Performing the cali b...

Page 22: ...5 08 24 35 After a calibration run you get the following print Calibrated 1234 mOsmol 23 03 15 07 36 17 If a measurement is canceled due to an error the screen displays the cor responding error messag...

Page 23: ...mple temperature and the elapsed time The run can be interrupted at any time by pressing the STOP button thermistor 9 99 C 00 56 3 After finishing the calibration the screen displays the message CALIB...

Page 24: ...tion point remains active until a new valid value for the selec ted field is created on the CALIBRATE screen If a calibration run is not suc cessfully finished the last calibration value becomes react...

Page 25: ...g the sample volume 7 8 Measuring sample solutions 7 8 1 Performing a sample measurement Prepare a measurement with a sample solution see 7 6 Preparing a mea surement on page 20 1 To perform measureme...

Page 26: ...uid The sample solution should stand upright in the sample tube 4 Handle the thermistor always very carefully Do not use abrasive materi als for cleaning The thermistor should be cleaned occasionally...

Page 27: ...ration of dissolved particles which leads to increase of osmolality of a solution Calibration solu tions should be used not longer than 30 60 min after the tubes were opened We recommend using KNAUER...

Page 28: ...evice The Operation Qualification includes an extensive functionality test accor ding to KNAUER standard OQ documents The Operation Qualifica tion is a standardized document and free of charge It is n...

Page 29: ...measured value is outside the acceptable range Usually a malfunction of the thermistor Contact the Technical Support NOT CALIBRATED No calibration points are available See section Measurement cali br...

Page 30: ...y ultrasound Note Calibration and measurement have to be performed with the same temperature settings and equal volume 9 3 Non freezing of the sample If the sample does not freeze one of the following...

Page 31: ...nstallation of EuroOsmo 7400 The program runs under Windows 7 8 and 10 but also with older operat ing systems back to Windows XP 1 Insert the EuroOsmo 7400 CD into the CD ROM drive 2 Wait for 30 secon...

Page 32: ...ware 30 10 2 Main screen After starting the program you will see the main screen of the software Fig 9 Main screen of EuroOsmo 7400 Software If the osmometer is not connected or switched off you will...

Page 33: ...chosen column After each bar code scan the cursor switches to the next sample line 10 4 Run Settings Command Explanation Select the number of the sample to be mea sured from the sample list Start but...

Page 34: ...bar at the bottom a Comments column becomes accessible for detailed informa tion The samples will be measured in the order of the list and the results are filled in and saved Fig 12 New sample list Do...

Page 35: ...e COM port to which your osmometer is connected 10 7 Working parameters Command Explanation Monitoring view The entered value defines the scale of the moni tor by its final value in minutes The temper...

Page 36: ...units valid for the measurement sequence The choice is mOsmol C F and If F is selected the values of the freezing level and cooling limit are automatically changed to F By clicking on the Apply butto...

Page 37: ...n an explorer win dow appears to edit the subtitles Additionally you can format the subtitles here Graph Settings Area for settings of the graph design A click on one of the four buttons will open the...

Page 38: ...in subfolders Search subjects are the operator the sample name and or the sample code As wildcard characters can be used for single characters and for undefined areas before and or after to the defin...

Page 39: ...n the responsibility of the user 11 2 Function checks of cooling capacity The cooling capacity can be checked by measuring the temperature in the cooling cavity 13 to 16 C during cooling down and 20 C...

Page 40: ...tialized by a start of the stirring wire within 150 seconds If the temperature of 13 C cannot be obtained the device must be returned for repair Note The shape of the stirring wire is essential for a...

Page 41: ...l data 11 4 1 Disconnecting the power supply The device has been switched off Process 1 Pull the power plug out of the socket and afterwards out of the device 2 Pack the power cable together with the...

Page 42: ...mol kg 0 400 mOsmol kg RSD 1 0 400 2000 mOsmol kg Linearity 1 0 1500 mOsmol kg 1 5 0 2000 mOsmol kg Calibration Two point calibration 0 mOsmol kg and one free selectable osmolality optional Three poin...

Page 43: ...structions V3700 12 3 General Feature Specifications Power supply 100 240 V 50 60 Hz 70 W Dimensions 160 x 182 x 340 mm Weight 5 3 kg device measuring head Ambient conditions Temperature range 10 35 C...

Page 44: ...zing point osmometer K 7400S A0006AC Power cable 230V M1479 RS 232 Connection cable M1702 Plain printer A3711 K 7400S Instructions V3700 Measuring head for plastic sample tubes A0840 2 Pack of 100 pla...

Page 45: ...y for the device is stipulated by contract During the warranty period any components with material or design related defects will be replaced or repaired by the manufacturer free of charge Please conn...

Page 46: ...roperly According to the German Abfallverzeichnisverordnung AVV January 2001 old devices manufactured by KNAUER are marked as waste electri cal and electronic equipment 160214 KNAUER as a company is r...

Page 47: ...OR ANY DERIVATIVE WORKS BASED UPON THE SOFTWARE OR ANY PART THEREOF The Licensee must not remove from the program firm names trademarks logos copy right notices and other markings or devices which ser...

Page 48: ...special incidental or consequential damages so the above limitation or exclusion may not apply to the Licensee Any liability is in any case limited to the license fee 8 Limitation of Remedies KNAUER s...

Page 49: ...00 For all controversies out of this Agreement the District Court Berlin shall have exclusive jurisdiction The applicable law shall be that of the Federal Republic of Germany German Civil Code excludi...

Page 50: ...UER instructions online www knauer net library KNAUER Wissenschaftliche Ger te GmbH Hegauer Weg 38 14163 Berlin Phone Fax E Mail Internet 49 30 809727 0 49 30 8015010 info knauer net www knauer net KN...

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