EN-9
Fan Screen and Ventilation
CAUTION
:
Unplug the Controller and remove the battery pack (see Section VI) before fan screen maintenance.
It is very important that the fan screen be cleaned as required to ensure continued trouble-free operation. The Controller should never be run without
the fan screen in place. To clean the fan screen, follow the instructions later in this manual in the “Fan and Screen (Removal/Installation)” Section to
first remove the fan screen. Brush any loose dirt and lint from the surface of the screen. Reinstall the fan and screen, making sure the gasket material is
oriented so as to prevent the screen from touching the fan directly.
During system use, obstruction of the fan cover and vents should be avoided. Free flow of air is necessary to prevent overheating and premature
component failure.
Fuses
CAUTION:
Unplug the Controller and remove the battery pack (see Section VI) before replacing the fuse(s).
Blown fuses should only be replaced by those indicated on the power supply board near the location of the fuses at the AC inlet. Use only 1.6 A,
250 VAC, 5x20mm Slo Blo fuses. The use of fuses that have the Semko and/or VDE marking is preferred. If a fuse blows a second time, it should be
presumed that the Controller is defective and requires further service. Please contact your service center. Fuses are not accessible from the outside of the
controller. Refer to the Disassembly/Reassembly procedures later in the manual. The fuses are located on the power supply board as part of the power
inlet module under the fuse cover.
Electrical Safety
CAUTION:
Be sure the Controller is disconnected from the power source (AC line power and DC battery power) before any disassembly. A potential
SHOCK HAZARD exists when the front cover is removed even with the unit turned off.
NOTE:
The power supply cord/plug serves as the electrical supply mains disconnect device.
The system should be periodically inspected to ensure its electrical safety. Check the resistance of the power cord ground from the plug to the IEC
60320 connector. This resistance should not exceed 0.1 ohm. If ground resistance exceeds this value or the insulation integrity of the unit has been
compromised through mechanical damage, the Controller should be returned to a service center for testing and repair.
compromised through mechanical damage, the Controller should be returned to a service center for testing and repair
compromised through mechanical damage, the Controller should be returned to a service center for testing and repair
* The SCD EXPRESS was designed to provide sufficient isolation inside the controller between all exposed metal components and the electrical
supply mains. As a result there is no externally accessible ground on the device. The recommended electrical safely test for proper grounding is a
resistance check of the power cord ground.
After Any Repair
Once Per Year
After Any Repair
Once Per Year
Inspect and Clean Fan Screen
As Required
Verify Transducer Calibration (Test Modes 03 and 04)
X
X
X
X
Electrical Safety Tests
X
X
Leak Test (Test Mode 06)
X
Leak Test (Test Mode 06)
X
General Function Test (Test Mode 07)
X
Suggested Preventative Maintenance Schedule
Outside U.S. and Canada
Tyco Healthcare Group LP
20 Garryduff Road
Ballymoney, BT53 7AP
00-44-(0)-2827-661719 Service Center.
00-44-(0)-1329-224226 Customer Care
CANADA
Tyco Healthcare Group Canada
7300 Trans Canada Highway
Pointe-Claire, Qc H9R 1C7
877-664-TYCO (8926)
UNITED STATES
Tyco Healthcare Group LP
98.6 Faichney Drive
Watertown, NY 13601
(800) 448-0190 or (315) 788-5246
