kENDALL SCD SEQUEL tyco Healthcare 6325 Installation and operating instructions

Operation &
Service Manual
MODEL 6325
COMPRESSION SYSTEM
#YCO / Healthcare
KENDALL

Parts Listing SCD Sequel Model 6325
To order repair parts listed here, call Kendall/Tyco Healthcare at [phone]. Contact Customer
Service for availability of parts not listed below.
Description Order Part Number
POWER SUPPLY PC BOARD 7774006780
CPU PC BOARD 7774006840
TRANSDUCER - PRESSURE 7774020504
COMPRESSOR (THOMAS, GAST) 7774010283
COMPRESSOR FILTER 7774031569
COMPRESSOR MUFFLER 7774031575
COMPRESSOR CABLE 7774090530
VALVE ASSEMBLY (KIP, SKINNER) 7774010300
TRANSFORMER 7774010301
FRONT ENCLOSURE ASSEMBLY (CASE, FOAM, LABELS) 7774109780
FRONT ENCLOSURE 7774031601
REAR ENCLOSURE ASSEMBLY (CASE, FOAM, LABELS) 7774109790
REAR ENCLOSURE 7774031600
NYLON HOOK PAD 7774170580
FAN GUARD 7774031602
FAN FILTER 7774031572
HOOK (BED) 7774031567
CASE RUBBER FEET 7774031570
ROCKER SWITCH 7774070156
BOARD TO BOARD CABLE 7774080385
POWER CORD ASSEMBLY 7774090529
STRAIN RELIEF 7774131980
TUBING, TRANSDUCER (1/8 X 1/4) 7774090551
TUBING,5/32 X 9/32 7774090579
TUBING,(COMP- MUFFLER), 5.50" 7774090540
FUSEHOLDER 7774010289
FUSE, .75 AMP 7774010290
SHRINK TUBING (FUSEHOLDER) 7774090533
FAN ASSEMBLY 7774109190
MEMBRANE SWITCH 7774070163
CAUTION LABEL 7774181923
GROUNDING LABEL 7774181924
OPERATING INSTRUCTIONS LABEL 7774181947
QUIET FOAM, LOWER FRONT 7774031576
QUIET FOAM, MIDDLE FRONT 7774031577
QUIET FOAM, UPPER FRONT 7774031578
QUIET FOAM, BOTTOM 7774031579
QUIET FOAM, CHASSIS 7774031580
QUIET FOAM, END 7774031599
F181957

Operation & Service Manual
MODEL 6325
Table of Contents
M GENERAL OPERATING INSTRUCTIONS
e Pre-Operation Check ....................................... 1
* Use of Bed Hook............................................ 1
+ Operation ....................................,..,.,,,,,4. 1
e Cycle Monitor ..........................,,.................. 1
© Comfort Cooling ...................................,........ 1
+ Power Cord Storage ........................................ 1
+ Sleeve Compatibility ........................................ 1
M FAULT CONDITIONS
e Fault Messages .................................,..,..,.. 24
ㆍ Watchdog Circuit .........................................1 4
M CONTRAINDICATIONS ...........................,............. 5
M CAUTIONS .............................,.,....,..........,.,. 5
E SERVICE AND MAINTENANCE
slntroduction............................. eee 6
e Warranty and Factory Service ............................... 6
+ Maintenance .........................................,.... 6-7
e Ventilation ................................................. 7
efFuses................................. eee 7
+ Electrical Safety ............................................ 7
e Cleaning .................................,............... 7
* Electrical/Electronics Description ........................... 7
e Pneumatic Description ...............................: Fer 8
e Portidentity ............................................ 8
» System Start-Up Routine .................................... 8
+ Pressure Monitoring ........................................ 8
(Continued on next page}

Operation & Service Manual
MODEL 6325
Table of Contents
(CONTINUED)
M CALIBRATION/TEST METHODS
.latroduction.............................. 1... eee 9
* Calibration Verification Procedure ........................... 9
.CalibrationProcedure..................................... 9-10
e General Function Test ...................................... 10
+ Procedure .....................,.......................... 10
Ш DISASSEMBLY/REASSEMBLY
»eCaseRemoval ............................................. 1
eCircuitBoardRemoval...................................... 1
+ Circuit Board Installation ................................... 1
+ Compressor..........................................,..... 1
+ Solenoid Valves ...................,...,.,.......,.......... 12
« Case Reassembly .......................................... 12
画 SPEEIFICATIONS ων νε νο ων κκ νε κκ 18
HE QUALITY SPECIFICATIONS .................................. 、.4
E FIGURE 1: Diagram of Bed Hook Use ........................... 15
@ FIGURE 2: System — View of Controls & Indicators ............. 16
@ FIGURE 3: Diagram of Power Cord Storage ..................... 7
M FIGURE 4: Pneumatics Schematic ............................. 18
E FIGURE 5: System — Exploded View ........................... 19
Ш FIGURE 6: Pneumatics & Electrical Circuits .................... 20
BB FIGURE 7: Electrical Schematic ............................... 2

General Operating Instructions
The SCD SEQUEL Compression System Model 6325 is designed to apply sequential gradient compression to the lower
limbs to prevent deep vein thrombosis in patients at risk.
M PRE-OPERATION CHECK
Before using the SCD SEQUEL Compression System on the
patient, verify that:
© The Tubing Set is properly connected to the System and
the Sleeves. Both Sleeves must be connected. If the
System can only be used on one leg (e.g., amputee),
connect the second sleeve but leave it packaged in its
plastic bag.
© There are no kinks or sharp bends in the Tubing Set.
© The left and right sides of the System are unobstructed
for free air flow.
© The System power cord is plugged into a grounded AC
receptacle of the correct voltage.
© No flammable anesthetic gases are present.
Ш USE OF BED HOOK
The SCD SEQUEL Compression System features a bed
hook.
This feature may be used by placing the System on
the footboard of the hospital bed with the System facing
away from the patient (see Figure 1).
NOTE: After placing the System on the footboard, confirm
that the System is securely held by the footboard, and does
not interfere with patient care.
E OPERATION
Turn the power switch on (located on the lower right side of
the System). The System performs a self-diagnosis and LED
check upon start-up. The LED segments illuminate, starting
at the top of the display panel. The System then begins
normal operation with ankle inflation. See Figure 2 for the
location of each control and indicator.
NOTE: When the System is turned on, the Sleeve Cooling
will be off. To activate Cooling, press the Cooling Button
while the machine is operating. The Cooling LED will
illuminate when the option is on.
In the case of a fault condition, the alarm will sound. The
appropriate fault code will be displayed and the System
will shut down.
M CYCLE MONITOR
The SCD SEQUEL Compression System has a Cycle
Monitor, which continuously displays the status of the
System’s compression sequence. The Monitor consists of
two back-lit panels which, when illuminated, read
INFLATE and VENT. These represent the two major divi-
sions of one complete cycle. During operation, the
INFLATE and VENT lights will illuminate to indicate which
part of the cycle the system is in. If the Sleeve Cooling is
off, the compressor will shut off during the Vent Cycle.
AUTOMATIC PRESSURE ADJUSTMENT
The SCD SEQUEL Compression System features micro-
processor controlled automatic pressure adjustment. This
feature automatically sets the pressure to 45mmHg and
maintains this set pressure even when the patient moves or
changes position.
After the start-up sequence, the System will set itself and
display 45mmHg. During the first few inflation cycles the
Controller will adjust itself to meet the 45mmHg. During
the initial setting period the decimal points on each side of
the 45 will display “.45.”
Within five cycles the System will stabilize between 43
and 47mmHg and the decimal points will turn off, leaving
“45”
displayed.
NOTE: Even after the initial 45mmHg pressure is reached,
the System will continue to make small adjustments in
order to maintain the 45mmHg.
MW POWER CORD STORAGE
Power cord storage for the SCD SEQUEL Compression
System is provided by wrapping the power cord around
the bed hook. This is shown in Figure 3.
E SLEEVE COMPATIBILITY
The SCD SEQUEL Compression System is designed for use
with SCD Sleeve Reorder #5330, 5329, 5480, 5345, and
5336.

Fault Conditions
Model 6325
Fault Messages ”
CODE FAULT TYPE
DESCRIPTION
SL System Low
There is less than 8mmHg pressure at the end of the first inflation cycle or at
the end of two consecutive cycles thereafter.
POTENTIAL CAUSES
* Tubing Set is not properly connected.
* There is a leak inside the System.
CORRECTIVE ACTIONS
© Ensure proper Tubing connections.
* Turn the System off and restart. If the System displays the same fault,
the unit requires servicing.
Lo
Low
The System is unable to bring the pressure up above 43mmHg for five consecu-
tive cycles. The pressure in the Sleeves is consistently below the set pressure.
POTENTIAL CAUSES
* Tubing is not properly connected.
* Sleeves are too loose.
CORRECTIVE ACTIONS
Ensure proper Tubing connections.
* Apply Sleeves so that only two fingers fit snugly between each Sleeve and
the patients leg.
* Turn the System off and restart. If the System displays the same fault,
the unit requires servicing.
SH
System High
Pressure has exceeded 90mmHg after 1.2 seconds of thigh cycle:
* On first cycle, System will switch to vent mode and adjust flow control
appropriately.
* On subsequent cycles, Systern will switch to the fault mode and
display this code.
(Continued on next page)
(1) When the microprocessor detects a fault condition, it interrupts the normal operation of the controller,
deactivates all valves, displays a fault code, and sounds an audible alarm. This alarm will remain
active until the System power switch is turned off.

Segue
Fault Conditions comwe
CODE FAULT TYPE DESCRIPTION
SH
System High
(continued)
POTENTIAL CAUSES
© Tubing Set is kinked.
© Sleeves are too tight.
CORRECTIVE ACTIONS
* Straighten out kinked Tubing Set.
+ Apply the Sleeves so that two fingers can fit snugly between each Sleeve and
the patients leg.
e Tum the System off and restart. If the System displays the same fault,
the unit requires servicing.
HI
High
The System is unable to bring the pressure down below 47mmH for five
consecutive cycles. The pressure in the Sleeves is consistently above the
set pressure.
POTENTIAL CAUSES
* Sleeves are too tight.
CORRECTIVE ACTIONS |
+ Apply the Sleeves so that two fingers can fit snugly between each Sleeve and
the patients leg.
* Turn the System off and restart. If the System displays the same fault,
the unit reguires servicing.
SP System Pressure
The System has not controlled to 35 - 55mmHg for 12 consecutive cycles.
POTENTIAL CAUSES
+ Sleeves are too tight.
CORRECTIVE ACTIONS
+ Apply the Sleeves so that two fingers can fit snugly between each Sleeve and
the patients leg.
e Turn the System off and restart. If the System displays the same fault,
the unit reguires servicing.
di internal
Diagnostic One
If the solenoid valve stays open, the microprocessor will detect this
condition, shut the System off, and display this code.
The System should be returned to the manufacturer for repair.

Model 6325
Fault Conditions commun
CODE FAULT TYPE DESCRIPTION
d2 Internal Upon start-up, the microprocessor performs diagnostic tests. If the System fails
Diagnostic Two to pass all of these tests, it will not start and this fault code will be displayed.
The System should be returned to the manufacturer for repair.
d3, d4 Internal These faults are indicated only during special test conditions and should not
Diagnostic Three, occur during normal operation.
Four
The System should be returned to the manufacturer for repair.
ds Internal This fault is indicated if the pump speed is not what is expected.
Diagnostic Five
The Compressor Outlet Filter should be replaced or the Muffler should be
cleaned. If fault reoccurs after replacement, the System should be returned to
the manufacturer for repair.
de internal This fault is detected if the pressure exceeds 25 mmHg after 54 seconds
Diagnostic Six of the vent cycle.
The System should be returned to the manufacturer for repair.
d7 - d9 Internal These codes have not been implemented.
Diagnostic Seven, They have been reserved for future use.
Eight, Nine
WATCHDOG
CIRCUIT
If the Microprocessor cannot continue normal function, the watchdog
circuit will trip. This causes the System to go into reset and restart normal
operation.
If the cause of the disruption is still present, the unit will continue to
attempt to reset, which will cause the alarm to sound once every second.
If the cause of the disruption was transient, such as a high energy RF
pulse, the System will restart with the COOLING OFF.

SCD
9
の
Contraindications
The SCD SEQUEL Compression System may not be
recommended for patients with the following:
1.
Any local leg condition in which sleeves would
interfere such as:
a. Dermatitis
b. Vein ligation (immediate postoperative)
c. Gangrene
d. Recent skin graft
Severe arteriosclerosis or other ischemic vascular
disease.
Massive edema of legs or pulmonary edema from
congestive heart failure.
Extreme deformity of leg.
Suspected existing deep venous thrombosis.
Cautions
1.
2.
3.
WARNING: Do not attempt to repair or replace broken tubing connectors as hazardous inflation
When this device is used in the Operating Room, keep Comfort Cooling OFF to maintain air quiescence.
Federal (U.S.A.) law restricts this device to sale by or on the order of a physician.
Explosion Hazard. Do not use in the presence of flammable anesthetics.
of the sleeves may occur.
This product is a component of Kendall’s SCD System that is covered by various U.S. Patents. The
use of non-Kendall components in place of and/or in combination with this Kendall component may
constitute infringement of Kendall U.S. Patent(s). Kendall expressly states that no implied license with
respect to use of non-Kendall components is granted by the sale or lease of this component.
Other Patents Applied For

Service and Maintenance
Model 6325
M INTRODUCTION
The service technician should be familiar with the oper-
ator's portion of this manual and the operating principles of
the SCD SEQUEL Compression System. The fault codes dis-
played by the System are useful in diagnosing service prob-
lems. If a System is to be returned for service, a description
of the operating conditions and the fault code displayed
should accompany the unit.
This manual describes service procedures to the board
level, with an exploded view of the System shown in Figure
5. If a component failure on a circuit board is suspected, the
unit should be returned for service. It is recommended that
the instrument be returned with the circuit board in place,
as removal of the board(s) involves additional risk of
mechanical damage and damage from electrostatic dis-
charge (ESD).
E WARRANTY AND FACTORY SERVICE
The Kendall Healthcare Products Company warrants that
your SCD SEOUEL Compression System is free from defec-
tive material and workmanship. Our obligation under this
warranty is limited to the repair of Controllers returned to
the service address indicated at right, transportation charges
prepaid, within one year of delivery to the original pur-
chaser. Specifically, we agree to service and/or adjust any
Controller as reguired if returned for that purpose, and to
replace and repair any part which, upon our examination,
is proven to have been defective. This warranty does not
apply to the Tubing Set or the individual disposable leg
Sleeves, or to eguipment damaged through shipping , tam-
pering, negligence, or misuse, including liquid immersion,
autoclaving, or ETO sterilization.
This limited warranty does not cover, and is intended to
exclude, any and alt liability on the part of the Company,
whether this limited warranty or any warranty implied by
law, for any indirect or consequential damages for breach
hereaf or thereof. Except as expressly provided above in the
limited warranty, the Company hereby negates and disclaims
all express and implied warranties, including the warranties
or merchantability and fitness for a particular purpose.
Some states do not allow the exclusion or limitation of inci-
dental or consequential damages, so the foregoing limita-
tion or exclusion regarding damages may not apply. Also,
this Limited Warranty gives you specific legal rights, and
you may also have other rights which may vary from state
to state.
This service manual is intended for use as a guide to
technically-qualified personnel when evaluating instrument
malfunctions. It is not to be construed as authorization to
perform warranty repairs. Unauthorized service will void the
warranty.
Controllers requiring warranty repairs must be shipped, pre-
paid and insured, to the Service Center. The Kendall Health-
care Products Company maintains service facilities with the
capability to promptly repair the SCD SEQUEL
Compression System. In the event of any service mainte-
nance problem, contact Customer Service. The toll-free
number is [phone]. If the instrument is to be
returned for service, please call the above number to obtain
an authorization return number and send it prepaid and
insured, in the original carton, to:
TYCO HEALTHCARE GROUP LP
98.6 Faichney Drive
Watertown, NY 13601
E MAINTENANCE
CAUTION:
Unplug the System before filter maintenance.
There are two filters used in the SCD SEOUEL Compression
System — a fan filter and a compressor outlet filter.
It is very important that the fan filter be cleaned frequently
to ensure continued trouble-free operation. The Controller
should never be run without the fan filter in place. To clean
the fan filter, gently pry the fan cover off the left side of the
System. Carefully remove the filter from the fan cover and
brush loose dust and lint from the surface. Wash the filter in
a mild detergent solution, dry thoroughly, and reinstall.
(Continued on page 7)