Specifications

Document No. DER04098 OPERATING INSTRUCTIONS

Page 12 of 19 Effective Date 06 Jun 08

INITIAL STARTUP

Perform the initial startup procedure when the centrifuge is being started for the first time following

installation or after the machine has been relocated. Before beginning the procedure, verify the

following:

1. All tools, documents, and shipping components have been removed and there are no

obstructions to operation.

2. All personnel are clear of equipment.

INITIAL STARTUP

Step Procedure

Confirm that all operators and maintenance personnel have read and understand all

operating and safety information in Section 2 - Safety.

2 Check that services and utilities are available at the installation site per DER01321.

Verify that equipment has been installed properly, all shipping brackets have been

removed, and bearing pillow blocks have been tightened to specified torque per

DER03022.

Apply power to centrifuge, and run bowl at 20 RPM with a conveyor differential speed of

5 RPM. Confirm direction of rotation for bowl, conveyor, feed pump, and air conditioner

condenser motors as follows:

• Bowl - Counterclockwise viewed from fan end

• Conveyor - Clockwise viewed from fan end

• Feed pump - Per manufacturer’s data

• Air conditioner condenser - Clockwise viewed from fan end

Correct reverse rotation by shutting down power and switching any two of the three

power leads at the terminal block(s) inside the cabinet (refer to

DER03022 and electrical

schematic diagram in Section 11.

With electric power applied, but without centrifuge running, perform the following safety

checks:

• Operate emergency stop buttons on junction box and control cabinet, and confirm

that Emergency Stop alarm message appears on control panel.

• Tap vibration switch housing horizontally with a rubber or rawhide mallet, and

confirm that High Vibration Fault message appears on control panel.

These tests confirm that connections have been correctly made between control cabinet

and centrifuge.

6 Start centrifuge in accordance with Normal Startup procedure below.