User guide

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Operator’s Manual

Model 642VFD 230V • Laboratory Centrifuge

Rev. A

Programmable

Run Time is Factory

Preset to

MINUTES

See Page 5

Replacement Parts:

Part No. Description

7724037 Foot, rubber

7751068 Switch, lid safety

7786021 Rotor, six-place, horizontal

7735014 Motor, 1/30 H.P., 230 V.A.C. Permanent Split Capacitor

7729006 Capacitor, 4uF, 250V A.C.

7717037 Electronic timing and locking board

7751043 Circuit Breaker

7760005 Power Cord

7714101 Pawl, latch, lid

7714103 Knob, latch, lid

7712316 Lid

7724071 Hinge, friction

7732018 Seal, lid gasket

7713031 Red Tube Holder, for 17mm x 100mm tubes

7713033 Green Tube Holder, for 17mm x 75mm tubes

Available Accessories:

1” Tube Cushion

p/n 1525

WARRANTY:

The Drucker Company warranties that this centrifuge is free from

defects in workmanship and parts for 12 months.

Shield Caps

p/n 7713011

Tel: 814-342-6205 Fax: 814-342-6211

www.druckerco.com email: sales@druckerco.com

200 Shady Lane

Philipsburg, Pa 16866, USA

P/N 7711047

p/n 9150

0.25” Tube

Cushion

Protected by U.S. patent # 6,811,531

Summary of content (7 pages)

PAGE 1
P/N 7711047 Replacement Parts: Part No. Description 7724037 7751068 7786021 7735014 7729006 7717037 7751043 7760005 7714101 7714103 7712316 7724071 7732018 7713031 7713033 Foot, rubber Switch, lid safety Rotor, six-place, horizontal Motor, 1/30 H.P., 230 V.A.C. Permanent Split Capacitor Capacitor, 4uF, 250V A.C.
PAGE 2
Table of Contents Model Description Supplied Equipment Features Specifications Setup Location and Procedure Front Panel Controls Operation Rotor Removal and Installation Tube Holder Configurations Care and Maintenance Troubleshooting Safety, Emergency Lid Removal Calibration and Ground Testing Replacement Parts Available Accessories pg. 2 pg. 2 pg. 3 pg. 3 pg. 4 pg. 5 pg. 6 pg. 7 pg. 7,8 pg. 9 pg. 10 pg. 11 pg. 11 pg. 12 pg.
PAGE 3
NOTE: The lid latch must be turned completely clockwise to its stop position in order for the centrifuge to operate. Troubleshooting: 1. 2. 3. 4. 5. 6. Problem: The rotor does not spin freely. Solutions: – Make sure nothing has fallen into the rotor chamber. – If there is nothing obstructing the rotor, contact The Drucker Company for further assistance. Problem: Excessive noise when the machine is running. Solutions: – Check to see that the load is balanced.
PAGE 4
Setup Location: 1. Unpack the centrifuge and verify that all of the supplied equipment is present. 2. Choose a setup location which meets the following criteria: a) A bench top clearance height of 20” is required in order to open the lid. b) The clearance envelope is the space around the centrifuge which is required for safety. Choose a setup location which will allow for a clearance envelope of at least 24” x 24”, (with the centrifuge at the center).
PAGE 5
Tube Holder Configurations: The 642VFD 230V is capable of spinning test tubes up to 17mm x 100mm with its horizontal rotor. Use the following chart and drawing to determine which tube holder and cushion combination should be used with your application. DIRECTIONS: 1. 2. 3. Compare the tube to be spun with the three boxes shown below. Find the box that most closely matches the tube’s length.
PAGE 6
To change the preset run time, RPM and brake settings: 1. Plug in the line cord. 2. Press the OPEN button to unlock the lid. 3. Open the lid. 4. Press and hold a START button along with the STOP/OPEN button until the latched light begins to flash (approximately 1 second on, 1 second off), then release. 5. Press the same START button once for each minute of run time desired. The time may be set from 1 to 30 minutes. 6. Press the STOP/OPEN button to assign the settings.
PAGE 7
Rotor Removal and Installation: To remove the rotor: 1. Unlock the centrifuge by pushing the ‘OPEN / STOP’ button and unlatch and open the lid. CAUTION: Unplug the centrifuge from the electrical outlet at this time to eliminate the possibility of electrical shock or other injury. 2. Remove the test tube holders. 3. Remove the nut in the center of the rotor by turning it counterclockwise, (a .5” nut driver may be required). 4. The rotor is sitting on a cone-shaped adapter.