INSTRUCTION MANUAL FOR BENCH TOP CENTRIFUGE Z 300 Z 400 Labnet International PO Box 841 Woodbridge, NJ 07095 Phone: 732-417-0700 Fax: 732-417-1750 Z 300 / Z 400 / Jan.
INDEX .................................................................................................................................... Page 1. 2. 3. 4. 5. 6. 7. 8. 9. General Information 1.1 Precautions and hazards .............................................................................. 1.2 Description .................................................................................................... 1.3 Safety standards .....................................................................
1. General Information 1.1 Precautions and hazards Before putting the centrifuge into operation, please read this instruction manual carefully. The centrifuge must not be operated by unqualified persons not familar with the correct use and intended purpose of the machine. Please use only the original spare parts.
1.1 Description The model Z 300 and Z 400 are a universal centrifuge which covers many fields of applications by offering a wide range of accessories. The centrifuges are equipped with the Hermle Standart-Control panel. Speed and running time are set with easy to use control knobs. The precise parameters selected are shown on the large digital LED display. 1.3 Safety standards The centrifuge corresponds to the general requirements set by German law for medical apparatus, "MedGV" group 3.
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1.5 Accessories supplied with each centrifuge unit 2 Replacement fuses, 1 Instruction manual, 1 Tool for removing the rotor 1.6 Warranty The centrifuge has been subjected to thorough testing and quality control. In the unlikely event of any manufacturing faults occuring, the centrifuge and rotors are covered by warranty for a period of one year from date of delivery.
2.4 Installation - Check that the power supply corresponds to that on the manufacturer's rating label which is mounted on the rear panel, then connect the power cord to the centrifuge and the socket. - The line voltage circuit breaher is maximum a 16 Amp. type K slow release for commonly used instruments. - That an ermergency switch is installed out side the room to disconnect the power supply in case of a troubled run - The power switch is at the rear side of the unit. Switch it on.
It is also allowed to operate for example a 4-place swing out rotor with 2 loaded and 2 unloaded buckets, but it is important that the loaded buckets are then opposite each other. 3.2 Mounting and securing an angle rotor Clean the motor shaft, as well as the rotor mounting hole with a piece of cloth and place the rotor on the motor shaft ensuring that the pins align correctly with the rotor slots (see page 6 /sktech 1).
When loading the rotor, make sure that the sealing is in good condition. The rubber should not be brittle, dirty or damaged by the capillaries. If necessary replace the sealing (order number of the sealing : 23-5147). To remove or to close the rotor lid press both locking bolts together. 3.4 Overloading of rotor The max. load permitted for a rotor, which is determined by the manufacturer, as well as the max. speed allowed with the rotor (see indications on the rotor itself) must not be exceeded.
4. Operation 4.1 Power switch Connect the cord plug to the appropriate wall socket. After connecting the digital displays will light up. The control panel is equipped with a stand by function 4.2 Lid release When the green control lamp of the key "lid" lights, the rotor stands still and centrifuge lid is ready to open. Press key "lid" (see figure 5) to open the lid. The green control lamp will extinguish as soon as the lid will be opened or the unit started.
4.4 Preselection of speed / RCF You can preset the speed between 250 rpm amd 13500 rpm in steps of 250 rpm 4 1 5 3 2 When the centrifuge lid is open, you can preset the required speed or rcf with the knob(2). If the centrifuge lid is closed and during the run, the speed can be changed as follows: Press key "preset" (5), hold it and at the same time change speed with the knob (2). The preselected speed will be indicated in the speed display (4). The centrifuge will accelerate only to the max.
4.5 Preselection of operating time You can adjust the desired operating time between 1 and 60 minutes or hold. With the centrifuge lid open you can preset the operating time with the knob (3). During the run and with the centrifuge lid closed you have to press additionally key "preset" (1) to change operating time during the run. The preselected running time will be indicated on the time display (5). At the end of a run the preset operating time will be kept for further runs.
5. Temperature Features 5.1 Temperature During centrifugation, heat is generated by air friction between the rapidly spinning rotor and the air inside the rotor camber. The temperature rise depends on the rotor ( swing-out or angle rotor ),bucket type, ambient temperature, running time and the speed of the rotor. The continous air flow through the centrifuge housing is restricting the temperature rise of the samples to the standard value of 40°C with each rotor even at maximum speed. 6.
7. Service and Maintenance 7.1 Service and inspection of the centrifuge Centrifuge service and inspection should be done regularly and only by authorized and qualified personnel. Use only original spare parts! 7.2 Maintenance and cleaning Maintenance The maintenance of the centrifuge confines esentially to keeping clean the rotor chamber, the rotor and the accessories as well as to the regular lubrication at the rotor inserts bolts of the swing out rotor.
7.3 Cleaning of centrifuge after breakage of glass tubes/glass bottles With high g-values, there is a possibility that tube breakage will occur. Should this happen, the centrifuge, rotor, buckets, adapters and the rotor chamber must be thoroughly cleaned and all broken particles removed immediately. If this is not done, they could scratch the protective coating of the rotor.
8.2 Check list / Trouble shooting The error message will be indicated by a certain number on the digital speed display. At the same time "ERROR" appears on the preset display. There is a distinction between two different kinds of errors. The digits on the indication "speed" have the following meaning: Error no. 1 - 49 (Forced stop) If one of those errors occurs, the rotor will be braked from the preset speed to 0.
Error no.: 10 Overtemperature in the rotor chamber (more than + 50 ° C) Reason: Breakdown of the refrigeration system / Electronic failure Action: Call service Reason: Temperature sensor defective / Electronic failure Action: Call service Error no.: 11 Temperature sensor Reason: Short circuit at the temperature sensor or at the sensor cable Action: Call service Reason: Chamber temperature is too low, below - 25°C Action: Solenoid valve is not working. Call service Error no.
Error no.: 22 Rotor is not mentioned in the rotor chart Reason: Rotor is not authorized for this unit Action: Insert only rotors authorized for this unit Error no.: 25 Power failure Reason: Power failure while rotor is in motion Action: Open and reclose the lid, restart the centrifuge Error no.: 30 Radius correction Reason: Radius correction value too big Action: Adjust the radius correction to the correct value Error no.
Error no.: 70 Interface of the frequency converter Reason: Communication of controller, power board, interface cable and frequency converter is not working Action: Call service Error no.: 82-83 Cutoff power board - frequency converter Reason: Overcurrent or undervoltage due to power supply fluctuations Action: Restart the unit, take care that the power supply is stable Error no.
9. Appendix 9.
