Micropump DB-380.B - Manual (Page 11)

11 of 20 MODEL 380 MOTOR INSTALLATION AND OPERATION MANUAL IOM # 7820
REV A
(10/99)
MICROPUMP, INC.
A Unit of IDEX Corporation
PO Box 8975, Vancouver, WA 98668-8975, USA
Phone: (360) 253-2008
Fax: (360) 253-2401
email: [email protected]
Website: www.micropump.com
MICROPUMP LIMITED
A Subsidiary of Micropump, Inc.
Howard Road, Eaton Socon
St. Neots, Cambs. PE19 3ET England
Phone: (44) (0) 1480-356900
Fax: (44) (0) 1480-356920
Website:
www.micropump.com
NOT indicate a pump failure. Decoupling should only occur when the
magnet decoupling torque has been exceeded. Decoupling can be a
safety feature, preventing inadvertent pump/motor overloads.
Causes of Magnet Decoupling. Magnetically driven pumps can operate very quietly. It is not always possible to detect, without
disassembly of the pump, when the magnet coupling and pumping parts are operating incorrectly. It is therefore important to be able
to recognize possible causes of magnet de-coupling:
•
Blockage or restriction in the discharge side of the system
•
Discharge pressure exceeds decouple point
•
Fluid viscosity too high
•
Foreign particles jamming pumping parts
•
Binding or stuck pumping parts - this may occur between pumping cycles as a result of dried residue of the fluid being
pumped. Drain and flush the pump to remove the residue.
•
Sudden changes in pump load (including water -hammer or fluid-line pressure surges)
Magnet Recoupling. Before recoupling ensure that the cause of the decoupling has been identified and rectified. To recouple the
magnets, the motor must be stopped (to allow the magnets to re-align) and then restarted.
MAINTENANCE, SERVICING AND FAULT ISOLATION
Maintenance
The Model 380 motor is designed to be maintenance free.
Servicing
The Model 380 motor requires no service for the life of the drive.
Troubleshooting
If the pump does not meet its design performance or fails to operate correctly refer to the following tables for assistance in
identifying the cause and remedy:
A program which includes periodic monitoring of your Micropump
pump, is recommended in order to provide timely detection and
assessment of any problems.
NOTE