SERVICE MANUAL for LABNET SPECTRAFUGE 16M MICROCENTRIFUGE
Contents Section 1 General Description of Operation ............................................................ 1 Specifications ........................................................................................... 2 Section 2 Warranty Information ............................................................................... 3 Section 3 Troubleshooting ....................................................................................... 4 Section 4 Service Instructions ............................
Section 1 General Description of Operation This centrifuge is generally used in biological and biochemical research laboratories where small samples must be subjected to high RCF (g-force) for relatively short time intervals (usually thirty minutes or less).
Section 1 Specifications Maximum speed ............................................................................................... 14,000 rpm ±5% . Maximum RCF .......................................................................................................... 16,000 x g Maximum capacity ....................................................................................... 36 mL (18 x 2.0 mL) Dimensions Width .......................................................................................
Section 2 Warranty Information Limited Warranty This warranty is valid in U.S.A. only Repair or Replacement The manufacturer warrants this equipment to be free of defects in material and workmanship for a period of 12 months from the original date of purchase. This warranty includes labor and parts, and excludes damage caused by abuse or neglect. If defects occur during the warranty period, the manufacturer will, at its option, repair or replace the product. Proof of purchase is required.
Section 3 Troubleshooting Problem Possible cause Solution Lid will not open (with power/rotation light on). Rotor still turning. Wait for rotor to stop. Internal electrical failure. Requires service. No power supply. Check plug connection on back of unit. No power supply. Check/replace fuse. No power supply. Check wall outlet. Internal failure. Requires service. Debris lodged inside rotor. Disassemble and clean out rotor. Rotor improperly loaded. Load symmetrically/balance tubes.
Section 4 Service Instructions MAINTENANCE Beginning after the first 300 hours of use, and periodically thereafter, a qualified electronics technician should inspect the centrifuge. Cleaning & Lubrication CAUTION Removing the rotor The rotor, rotor chamber and centrifuge casing must be kept clean. Using a cloth damp with water or mild detergent, the casing and chamber should be wiped clean and kept in "likenew" condition. Clean all spills immediately, removing the rotor for best results.
Section 4 Rotor screw The rotor screw must be kept tight enough that it cannot be removed by hand. If it has become loose, tighten it firmly, clockwise, by hand and subsequently torque an additional 1/8 turn using a wrench or other appropriate tool. Speed calibration After every 100 hours of use (or more frequently if required by other agencies) the maximum rotor speed should be verified using an external tachometer via the below procedure or another procedure as required by regulatory agencies.
Section 4 9) Adjust the low speed pot (front-most) so that the rotor speed measures 1,000rpm, plus or minus 100rpm on the tachometer. 10) Replace the metal chute The unit is now calibrated. SERVICE PROCEDURES Take care when performing the following service procedures. Always disconnect the unit from power source before attempting any service operations. Removing Upper Casing Shell 1) Remove rotor as outlined in the rotor section.
Section 4 2) Unplug the motor connection from the PCB. 3) Loosen the ground nut and remove the motor ground lead (figure #4, pg 14). 4) Remove the 4 motor nuts on the bottom of the baseplate (figure #5, pg 15). Remove motor assembly and 4 star washers under the isolators from unit, noting the orientation and routing of motor and ground leads. 5) Install new motor assembly (with star washers on isolator studs) in chassis in the same orientation as the old motor.
Section 4 2) From the bottom of the unit, remove the 2 PCB mounting screws and nuts that secure the PCB brackets to the baseplate (see figure #6, pg 16). 3) One at a time, remove each of the 3 plug in connectors from the old PCB and install into the same location on the new PCB. 4) Position the new PCB so that the 2 mounting bracket holes are aligned with the two baseplate holes and reinstall the 2 PCB mounting screws and nuts. 5) Replace the upper casing shell as previously described.
Section 4 After removing, turn the upper casing so that the inside of the front panel is visible (figure #7, pg 17). If power to the solenoid is present, but the solenoid does not move, it should be checked and/or replaced. Other potential latch faults could be the result of poor wiring connections, poor alignment of the lid latch catch, sticking or jamming of the lid latch strike or no contact at the microswitch. If necessary the lid may be opened manually: 1.
Section 5 Illustrations Figure 1 Spectrafuge 16M Tach window Lid Upper casing Lid switch Timer Quick button Speed control Lid lock indicator 11
Figure 2 Position of screws holding upper casing to baseplate (shown from bottom of unit) Casing-baseplate screw Casing-baseplate screw Casing-baseplate screw Casing-baseplate screw 12
Figure 3 Position of metal chute and attachment screws (view from bottom of unit) Metal chute with screws at the 4 corners 13
Figure 4 Location of motor and motor ground nut Motor Motor ground nut 14
Figure 5 Location of nuts holding motor in place (bottom view of unit) Motor nuts 15
Figure 6 Location of PCB and its mounts PCB PCB mounts 16
Figure 7 View of front control panel electronics Underside of front control panel 17
Figure 8 Location of transformer and transformer mounts Transformer mounts Transformer 18
Section 6 Spare Parts Catalog # Description Price C0160-CB Circuit board $270.00 C0160-E Motor, complete C-0160-F Feet, set of 4 C0160-FUSE Fuse, 2.5amp (120V version) 1.75 C0160-FUSE1 Fuse, 1.25amp (230V version) 1.75 C0160-I Isolator 3.00 C0160-LB Centrifuge lid, Blue 80.00 C0160-LG Centrifuge lid, Grey 80.00 C0160-LL Lid latch 48.00 C0160-LP Centrifuge lid, Purple 80.00 C-0160-LR Centrifuge lid, Red 80.00 C0160-LT Centrifuge lid, Teal 80.
Section 7 Schematics and drawings This page intentionally left blank 20
Wiring Diagram - 120V
Wiring Diagram - 230V
Control Board Reference Reference C1, C9, C19, C20 C2, C4, C6, C7, C8, C10, C18 C3, C14, C16, C17 C5 C11 C12 C13 C15 C21 CAP1, CAP2 CLIM1 CR1, CR2, CR3 CR4 CR5, CR6, CR7, CR8, CR9, CR10, CR11, CR12, CR13 D1 F1 IEC INPUT CONN1 L1 LED1 LID SAFTY SW1 LID SW1 MOTOR1, PANEL1, POWER1 PULSE1 Q1 Q2, Q3, Q4, Q5, Q6, Q10 Q7 Q8, Q9 R1, R19, R29 R2 R3, R4, R9, R11 R5 R6 R7, R26, R28 R8 R10 R12 R13 R14, R24 R15 R16, R17 R18 R20, R30 R21 R22 R23 R25 R27 R31 R32 R33 RP1 RP2 RP3 RP4 Part NIC NRSA 100 M 35V 5X11 TR NIC NCM
Control Board Reference - continued Reference SAFTY1 SOLENOID1 SPEED1 T1 TIMER1 U1 U2 U3 U4 U5 U6 U7 U8 U9 WH1, WH2, WH3, WH4 Part HEADER 4 PIN NOT USED LID OPEN SOLENOID 24 VAC FRONT PANEL POT 100K TRANSFORMER FRONT PANEL TIMER SW.
