Tube Set Cleaning; Electrical/Electronics Description; Pneumatic Operation Description; Section Vi - Test Methods And Calibration - Covidien Kendall SCD 700 Bedienungs Und Servicehandbuch

TUBE SET CLEANING

The tube sets can be cleaned with a soft cloth dampened
with water or a mild detergent. Do not immerse. The table
at right provides optional cleaners and their chemical
components.

Electrical/Electronics Description

Line voltage is fed into the controller through the power
cord to the power supply mounted in the rear case of the
controller. It is important to disconnect the power cord at the
outlet before opening the controller case. Exposure to high voltage on the Power Supply PC Board is likely to occur if it
is electrically live.
The power supply converts AC line voltage, 100 to 240 VAC, to DC voltage to power the controller components,
including the main controller PC Board that is mounted onto the front case. Alternately, the main controller PC Board
may be directly powered by the battery pack. The controller PC Board controls all functionality of the system and
includes the transducer and buzzer. It does not contain any high voltage. The buttons and indicator LED's on the
membrane panel connect to the controller PC Board.
Covidien does not recommend any attempt to repair printed circuit boards. In manufacturing, extensive testing is
performed that cannot be duplicated in the field without specialized equipment. Improper repair could result in
patient or user hazards.

Pneumatic Operation Description

When the controller is turned on, the compressor operates and the valves are cycled to verify the garment type
selected by the user. After garment selection and verification has completed, an inflation cycle is initiated, releasing
air through the set of valves, mounted to a manifold. A transducer monitors the pressure in the garments. The reading
from the transducer assists the controller in adjusting the pump's motor speed to deliver the proper pressure to the
garments in the appropriate amount of time.

Section VI - Test Methods and Calibration

The Kendall SCD™ 700 series compression system
has various test modes that can be accessed by
the service technician. They are intended for use
by qualified personnel. To activate the test modes
follow these steps for entering "Test Access Mode."
FIGURE 12 shows the user interface features used
in Test Access Mode.
1. Plug the controller into an outlet supplying
the appropriate line voltage.
Note: Do not activate the test modes while
operating on battery power.
2. While turning the controller on, press and hold the B button. Hold the B button for a moment until Test Mode
Access can be confirmed visually.
3. "Test Mode T1" is signified by the unit sounding a beep, the screen illuminating, and the screen displaying "T1"
underscored.
4. The user can cycle through the test modes by pressing the Right Arrow button. Each test mode is indicated by the
slider under it and the selected test mode is shown at the bottom of the screen for clarity. Pressing the right
arrow button with the last test mode number illuminated will cycle the test mode back to Test Mode T1.
5. After selecting the desired test mode, press the B button to initiate the test.
6. If test access is entered but no test mode is selected within two minutes, it is assumed that the test access mode
was entered inadvertently and a Low Pressure error is triggered.
Kendall SCD™ 700 Series
TUBE SET CLEANERS
Chemical component (with approximate
concentrations)
0.5% bleach solution
70% Isopropanol alcohol
7.35% Hydrogen Peroxide, .023% Peracetic Acid
Dodecylbenzene Sulfonate, Coconut Diethanolamide
diluted per instructions
T2 T3 T4 T5 T6 T7 T8
T5
FIGURE 12 - Test Access Mode
Commercial
Example
Dispatch™*
Generic
Sporgon™*
Manu-klenz™*
EN-20