LABEC Z-L-450 - Manual (Page 6)

2 nd Introduction of Low-speed centrifuge
2.1 Overview
Low-speed table-top centrifuge can be widely used in fields of clinical medical, biology, chemistry,
genetic engineering, and immunology and so on. It is the conventional device for centrifugation and
sedimentation in the laboratory.
2.2 Profile of the structure of the device
This equipment is consisting of portal system, chamber system, drive system, rotor system, engine bed,
power supply system, control systems, display systems and alarm systems.
2.2.1 Portal system includes Door cover, door hinge, air spring, door lock, door alarm, Cord for emergency
locks etc. The door hinge is behind the rack. The door lock is in front of rack and only in the case of that the
door lock is locked tighten, you can start the centrifuge, or the door alarm system will work (BUZZ Sounds)
and the machine don't work.
If you want to open the door cover, just press “DOOR/STOP” key on the control panel. When the door
cover opens to certain height, gas spring can support the door cover.
If the power fails or the “DOOR/STOP” key doesn't work, but the samples should be removed in time,
then you need special tools to get the cord pry with which connects a rope to car lock. Pull it manually please
and then you can open the door cover.
When the rotors of the device is turning or the power
supply is on, Don't open the door cover manually !
2.2.2 Cavity system can provide a stable working environment.
2.2.3 This equipment is using DC direct brushless motor which can drive rotor of sample with load. Driving
system adopts cone-connection to make high quality of fit between rotor and rotor shaft and runs smoothly.
2.2.4 Rotor system consists of Angle rotors and Swing-out Rotor (Check "types of rotors and technical
parameters") and centrifuge test-tube. The role of rotor is to load the sample and rotate with certain speed to
make a relative centrifugal force field, and to achieve the purpose of separation of the samples. As the
centrifuge which is caused by the high-speed of the rotor is thousands of times more than the Earth's
gravitational accelerationg, it's important to use the machine safety and do the maintenance carefully.
2.2.5 Engine bed consists of rack, protective steel ring, backplane, fuselage shell and rubber support-leg,
2.2.6 Power Supply System includes power outlet and switch, and it's responsible for the supply of Utility
Power required by the machine.
2.2.7 Control System includes the setting of the speed, centrifugal force, operation time, the choice of lifting
speed, display system of complete machine, control or alarm system and so on. In order to ensure the
normal operation of the machine and the operator's safety, please do not open front electrical enclosures of
the device.
2.2.8 Display System consists of display panel and PVC keyboard panel ( control panel ). It's medium of
human-computer dialogue. It can display the parameters of settings simultaneously, trace and display actual
changes in the parameters. In addition, it can show various of failures and alarm.
2.2.9 Alarm system includes over speed alarm and alarm of fault of door cover. when the machine is over
speed, or there is problem with opening the door cover, the system will give an alarm, at this time, the red
light of the control panel will flash and buzzer will buzz, the machine can't start (not allow to start ). And the
running machine will stop working automatically and it can't restart until troubleshooting.
P.S: If you want to erasure the sound of the buzzer, please press ENTER key of the control panel.
2.3 Security structure
● The rack and protective steel ring are made of steel plates. The internal cavity is made of stainless steel
inner container. Front frame is made of plastic.
● The structure of the door cover is explosion-proof, and there is viewing port in the middle of the top of door
cover, and there is locking mechanism in the front of the door cover. Until the centrifuge is electrified and
the rotor stops, you can press “DOOR/STOP” key of the control panel to open the door of the centrifuge.
Only in the case of that the door cover of the centrifuge is locked, you can start the machine！