OHAUS FC5714 Service Manual
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OHAUS FC5714 Service Manual

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Summary of Contents for OHAUS FC5714

  • Page 1 Service Manual FC5714...
  • Page 2 GETTING STARTED...

  • Page 3: Table Of Contents

    1.6.1 Transport .......................... 8 1.6.2 Packing ..........................8 1.7 TECHNICAL DATA ......................... 8 1.7.1 Acceleration times FC5714 (120 V / 230 V) in min/sec ..........8 1.7.2 Deceleration times FC5714(120 V / 230 V) in min/sec..........9 1.7.3 Imbalance shut off data FC5714(120 V / 230 V) ............9 1.7.4 Specifications ........................
  • Page 4 GETTING STARTED 3.6 Replacing the hinges ......................30 3.7 Replacing the aerial (rotor sensor) ..................30 3.8 Replacing the motor resp. the motor bearings ..............31 3.9 Replacing the power board ....................32 3.10 Replacing the frequency converter ..................33 3.11 Checkup the imbalance sensor ...................

  • Page 5: Getting Started

    1 GETTING STARTED 1.1 INTRODUCTION This service manual contains the information needed to perform routine maintenance and service on the Ohaus centrifuge model FC5714. Before servicing the equipment, you should be familiar with the Instruction Manual which is packed with every equipment.

  • Page 6: Safety Precautions

    1.3.2 Rotor and Accessories Only OHAUS original rotors and accessories shall be used. Any other use or intended use is considered improper. OHAUS is not liable for damage resulting from improper use.

  • Page 7: Exclude The Following Environmental Influences

    EN 61010-2-020. • FC5714 is not explosion-proof and must therefore not be operated in explosion-endangered areas or locations. Centrifugation of flammable, explosive, radioactive, or such substances, which chemically react with high energy, is strictly prohibited. The final decision on the risks associated with the use of such substances is the responsibility of the user of the centrifuge.

  • Page 8: Service Facilities

    • Use a transport aid for transporting over longer distances. 1.6.2 Packing Pack the centrifuge in reverse order using the equipment original packing. 1.7 TECHNICAL DATA 1.7.1 Acceleration times FC5714 (120 V / 230 V) in min/sec Rotor-Number 1:40 0:52...

  • Page 9: Deceleration Times Fc5714(120 V / 230 V) In Min/Sec

    GETTING STARTED 1.7.2 Deceleration times FC5714(120 V / 230 V) in min/sec Rotor-Number 1:40 0:55 0:34 0:30 0:25 0:22 0:19 0:17 0:18 0:16 30314823 3:25 0:40 0:27 0:22 0:19 0:17 0:15 0:14 0:12 0:11 30314834 3:25 0:39 0:27 0:22 0:19...

  • Page 10: Specifications

    GETTING STARTED 1.7.4 Specifications Model FC5714 Speed Range 200 rpm -14000 rpm;10 rpm/set Maximum RCF 18624 x g;10 x g/set Maximum Capacity(Rotor) 4x100ml Temperature range(N/A) Air cool Running Time 10 sec to 99 hr 59 min 59 sec or continuous ≤...

  • Page 11: Service Instructions

    The actuation is a three phase asynchronous motor which is controlled by a frequency converter. Model FC5714 has an independent error detection program, displaying possible errors and therefore supporting the trouble shooting process. This unit is equipped with several safety features: •...

  • Page 12: Control Panel

    GETTING STARTED 1.8.2.3 Control panel The control panel consists of one LCD-display, one incremental shaft encoder, the upper front housing and the foil keyboard. These parts can be exchanged separate. The incremental shaft encoder regulates all parameters which are adjustable by pressing a key and which are indicated in the LCD-display.

  • Page 13: Rotor Recognition And Over Speed Protection

    GETTING STARTED 1.8.2.5 Rotor recognition and over speed protection The centrifuge will recognize the inputted rotor through the rotor identification transponder and the aerial belonging to it right after the insert automatically. As soon as the lid gets closed the rotor number will be indicated in the speed display. If the pre-selected rpm is higher as the permitted rpm of the rotor, the speed indication in the display will be regulated to the max.speed permitted for this rotor.

  • Page 14: Lid Contact

    GETTING STARTED 1.8.2.7 Lid contact The micro switch in the mechanism of the lid lock controls the correct closing of the centrifuge lid. The switch may never be bypassed. The lid lock is unlatched by an electro motor, receiving its signal from the control board.

  • Page 15: Service Menu

    Part 1 is accessible for the USER and different points can be read respectively settled. This is also described in the instruction manual. Part 2 is for internal use respectively for OHAUS trained service personnel only. 2.1 Activation of the operation menu The menu can be started as follows: •...

  • Page 16: Submenu Motor Starts

    SERVICE MENU 2.1.1 Submenu Motor starts Here you can read off the number of motor starts. • Activate the operation menu as described under „Activation of the operation menu (Part 1)“. • Turn the potentiometer until the special digit „A“ appears in the service display.

  • Page 17: Submenu Software Status

    Here the 99 last occurred error messages can be indicated. • Activate the operation menu as described under „Activation of the operation menu (Part 1)“. • Turn the potentiometer, until the special digit „E“ appears in the service display. Page 17 of 43 SERVICE MANUAL FC5718/R © OHAUS Corporation...

  • Page 18: Submenu Setup Of The Signal Generator

    SERVICE MENU • By pressing the key rpm/rcf the display „rpm/rcf“ is activated and now you can scroll through the error list either with the potentiometer. • Now the 99 last occurred error messages are indicated either by turning the potentiometer, whereas the first two numbers do describe the place number and the last two numbers do describe the occurred error.

  • Page 19: Submenu Setup Of The Keypad Tone

    Here you can setup the volume of the loudspeaker in case the signal generator is activated. • Activate the operation menu as described under „Activation of the operation menu (Part 1)”. Page 19 of 43 SERVICE MANUAL FC5718/R © OHAUS Corporation...

  • Page 20: Submenu Setup Of The Signal Melody

    SERVICE MENU • Turn the potentiometer, until the special digit „u“ appears in the service display. • By pressing the key rpm/rcf the display „rpm/rcf“ is now activated and you can setup the respective option with the potentiometer. • At the end of the run you can now hear the audible sound in the setup volume whereas 0 is the most quiet setup and 9 the loudest one.

  • Page 21: Submenu Check And Calibration Of The Imbalance Sensor

    Otherwise the setups were all for nothing. If the storage has been successful in the display „rpm/rcf“ the value of the imbalance sensor and the word „StorE“ are indicated. Page 21 of 43 SERVICE MANUAL FC5718/R © OHAUS Corporation...

  • Page 22: Submenu Indication Of The Imbalance Value Of The Rotor

    SERVICE MENU 2.1.12 Submenu Indication of the imbalance value of the rotor Here you can read off the imbalance value of the rotor transponder. • Activate the operation menu as described under „Activation of the operation menu (Part 1)”. • Turn the potentiometer, until the special digit „Y“ appears in the service display.

  • Page 23: Activation Of The Service Menu (Part 2)

    (Part 1)”. • Activate the service menu as described under „Activation of the service menu (Part 2)”. • Turn the potentiometer, until the special digit „t“ appears in the service display. Page 23 of 43 SERVICE MANUAL FC5718/R © OHAUS Corporation...

  • Page 24: Submenu Adjustment Of The Operation Mode

    SERVICE MENU • Examples: • By pressing the key rpm/rcf the display „rpm/rcf“ is now activated and you can setup the respective option either with the potentiometer or by pressing the key up/down. Attention: Please do not adjust any other centrifuge types than the mentioned one on the type label of the unit.

  • Page 25: Submenu Adjustment/Correction Of The Imbalance Cut Off Value

    Otherwise the setups were all for nothing. If the storage has been successful in the display „rpm/rcf“ the value of the imbalance sensor and the word „StorE“ are indicated. Page 25 of 43 SERVICE MANUAL FC5718/R © OHAUS Corporation...

  • Page 26: Mounting Support

    MAINTENANCE 3 MOUNTING SUPPORT After performing any kind of assembling work, please make sure all the grounded contacts are connected correctly! 3.1 Replacing the front housing, the incremental shaft encoder and the display Replacing the front housing • Remove the lower covering by turn out the 2 screws (see photo 19). •...
  • Page 27 • Loosen all electrical contacts to the display on the back of the front housing. • Remove the 4 fastening screws of the display and pull away the display upwards. remove Page 27 of 43 SERVICE MANUAL FC5718/R © OHAUS Corporation...

  • Page 28: Replacing The Foil Keyboard

    MAINTENANCE 3.2 Replacing the foil keyboard • Remove the incremental shaft encoder and the display. • Peel off the defective foil keyboard and clean the remaining glued joints. • Glue the new foil keyboard precisely in the recess. Make sure the foil matches precisely and the window of the foil keyboard lies exactly over the display.

  • Page 29: Replacing The Lid Gasket

    Open the lid as wide as possible. Hold the lid with one hand and remove the fixing screws of the hinges. The lid can now be removed completely. fixing screws Page 29 of 43 SERVICE MANUAL FC5718/R © OHAUS Corporation...

  • Page 30: Replacing The Hinges

    MAINTENANCE 3.6 Replacing the hinges Remove the lid as described in chapter 9.4.7. • Lay the lid with the upper side down on a smooth under packing to avoid any scratches. • Loosen the screws of the respective hinges on the inner side of the lid and replace the hinges. remove •...

  • Page 31: Replacing The Motor Resp. The Motor Bearings

    • When tightening the motor mount screws, please pay attention the motor rubber mounts are not being twisted. • When connecting the motor with the electricity, take care of the rotating direction (Direction of arrow). • Re-assemble the unit in reverse order. Page 31 of 43 SERVICE MANUAL FC5718/R © OHAUS Corporation...

  • Page 32: Replacing The Power Board

    MAINTENANCE Replacing the motor rubber bearings • Remove the lower covering of the front housing as described in chapter 3.1 • Remove the motor as described above. • Tilt the unit and remove the screws of the motor rubber mounts. •...

  • Page 33: Replacing The Frequency Converter

    • Lay the motor down on its side and remove the two fixing screws of the green circuit board on the rear side. • Replace the board and re-assemble the unit in reverse order. Page 33 of 43 SERVICE MANUAL FC5718/R © OHAUS Corporation...

  • Page 34: Replacing The Control Panel

    MAINTENANCE 3.12 Replacing the control panel • Remove the lower covering of the front housing as described in chapter 3.1. • Remove all electrical connections on the control panel. • Remove the 4 screws and remove the control panel. remove •...

  • Page 35: Replacing The Signal Generator

    Remove the two fixing screws of the lid lock and put in the new lid lock. remove remove • Keep attention through adjustment of the lid lock, that the lid lies straight and continuous on the lid sealing. After adjustment tighten the screws well. Page 35 of 43 SERVICE MANUAL FC5718/R © OHAUS Corporation...

  • Page 36: Trouble Shooting

    Only through your information we are able to improve and complete this instruction manual. Many thanks in advance for your support. OHAUS Corporation 4.2 Survey of possible error messages and their solutions 4.2.1 Lid release during power failure In case of power failure or malfunction, the lid of the centrifuge can be opened manually in order to protect your samples.

  • Page 37: Description Of The Error Message System

    (Position request not understood at plug is loosen (between control board to the stop) frequency converter), frequency converter is defective, control is defective Page 37 of 43 SERVICE MANUAL FC5718/R © OHAUS Corporation...
  • Page 38 MAINTENANCE Short circuit in the frequency Frequency converter defective, motor converter defective Under voltage frequency converter Brief power failure, At revision no.1 it could be, that the frequency relay is defective, cable break, plug is loosen (between control board to frequency converter) Over voltage frequency converter Break resistant is defective, the rotor is braked to strong...

  • Page 39: Maintenance

    Metal rotors can be autoclaved. Rotor lid and adapters can also be autoclaved (max. 121°C, 20 min). The tube racks are made of PP and can not be autoclaved at 134°C. Page 39 of 43 SERVICE MANUAL FC5718/R © OHAUS Corporation...

  • Page 40: Cleaning And Disinfection Of The Unit

    MAINTENANCE 5.1.2 Cleaning and disinfection of the unit 1. Open the lid before you turn off the unit. Disconnect it from the power supply. 2. Open the rotor nut by turning the rotor key clockwise. 3. Remove the rotor 4. For cleaning and desinfection of the unit and the rotor chamber using the above mentioned cleaner.

  • Page 41: Glass Breakage

    Tube racks, which are used in rotor no. 221.12 V03 have a service life up to 1 year from first use. Condition for the operating life: Proper use, damage-free condition, recommended care. Page 41 of 43 SERVICE MANUAL FC5718/R © OHAUS Corporation...
  • Page 42 MAINTENANCE...
  • Page 43 ™ Registered trademark of Ohaus Corporation. The information contained in this manual is believed to be accurate at the time of publication, but Ohaus Corporation assumes no liability arising from the use or misuse of this material. Reproduction of this material is strictly prohibited.

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