Ohio North American ISU, International ISU User manual
Intermittent Suction
Units (ISU)
Service Manual
North American
ISU
International
ISU
User Responsibility
This Product will perform in conformity with the
description thereof contained in this manual and
accompanying labels and/or inserts, when assembled, operated, maintained and repaired in
accordance with the instructions provided. This
Product must be checked periodically. A malfunctioning Product should not be used. Parts that are
broken, missing, plainly worn, destroyed or contaminated, should be replaced immediately. Should
such repair or replacement become necessary,
Ohio Medical recommends that a telephonic or
written request for service advice be made to the
nearest Ohio Medical Service Offi ce. This Product
or any of its parts should not be repaired other than
in accordance with written instructions provided by
Ohio Medical, or altered without the prior written
Technical Competence
The procedures described in this service manual
should be performed by trained and authorized
personnel only. Maintenance should only be undertaken by competent individuals who have a general
knowledge of and experience with devices of this
nature. No repairs should ever be undertaken or attempted by anyone not having such qualifi cations.
approval of Ohio Medical’s Safety Department. The
user of this Product shall have the sole responsibility for any malfunction which results from improper
use, faulty maintenance, improper repair, damage,
or alterations by anyone other than Ohio Medical.
Important: Federal law in the U.S.A. and Canada
restricts this device to sale by or on the order of a
licensed medical practitioner. This device is to be
used only by persons who have been adeuately
instructed in its use.
Important: This document is not to be reproduced
in any manner, nor are the contents herein to be
disclosed to anyone without the express authorization of Ohio Medical Corporation, Gurnee, IL USA.
Genuine replacement parts manufactured or sold
by Ohio Medical must be used for all repairs.
Read completely through each step in every procedure before starting the procedure; any exceptions may result in a failure to properly and safely
complete the attempted procedure.
Abbreviations Used In This Manual
in Hg
in
ISU
kPa
LPM
mm Hg
mm
oz
| (CONT)
|O|O| (INTER)
O (OFF)
P-P
°C
°F
N-m
ft-lb
DISS
OES
NCG
BOC
NPT
NPTF
MPTS
I.D.
gal.
PTFE
NG
Inches of mercury
Inch
Intermittent Suction Unit
Kilo pascals (kPa x 7.50 = mm Hg)
Liters per minute
Millimeters of mercury (mm Hg x .133 = kPa)
Millimeters
Ounces
Continuous (On)
Intermittent
Off
Posi-Pulse
Degrees Celsius
Degrees Fahrenheit
Newton-Meter (N-m x .737 = ft-lb)
Foot-Pound Force (ft-lb x 1.356 = N-m)
Diameter Index Safety System
Oxequip Suction
National Compressed Gases (Chemetron)
British Oxygen Corporation
National Pipe Thread (USA)
National Pipe Thread Female (USA)
Multi-Purpose Therapy Stand
Inner Diameter
gallon
®
Tefl on
Naso - Gastric
Table of Contents
1/Precautions .................................................... 1-1
1.1 Defi nitions ..................................................... 1-1
1.2 Warnings ......................................................1-1
1.3 Cautions .......................................................1-2
2/Scope .............................................................. 2-1
2.1 North American Vacuum Regulators. ........... 2-1
2.2 English Vacuum Regulators .........................2-1
2.3 French Vacuum Regulators .......................... 2-2
2.4 Spanish Vacuum Regulators ........................ 2-2
3/Description and Specifi cations .................... 3-1
3.1 Description ...................................................3-1
3.2 Specifi cations ...............................................3-2
4/Operation........................................................ 4-1
4.1 Equipment Set-up ......................................... 4-1
4.2 Mode Selection ............................................. 4-2
4.3 Setting the Suction Level .............................. 4-2
4.4 Pre-Use Checkout Procedure ...................... 4-3
4.5 Patient Set-up ............................................... 4-6
4.6 Setting the Timing Cycles ............................. 4-7
4.7 Setting the Intermittent Mode Flow
Rate .............................................................. 4-8
5/Cleaning and Sterilization ............................. 5-1
5.1 Cleaning ....................................................... 5-1
5.1.1 Routine Exterior Cleaning .................. 5-1
5.1.2 Internal Component Cleaning.............5-1
5.2 Sterilization ................................................... 5-1
6/Troubleshooting ............................................6-1
7/Service - Disassembly and Assembly ......... 7-1
7.1 Service Tools and Equipment ....................... 7-1
7.2 ISU and Posi-Pulse ISU ...............................7-1
7.2.1 Disassembly ....................................... 7-1
7.2.2 Assembly ............................................ 7-4
7.3 Regulator Module ......................................... 7-5
7.3.1 Disassembly ....................................... 7-5
7.3.2 Assembly ............................................ 7-6
7.4 Timing Valves ............................................... 7-6
7.4.1 Disassembly ....................................... 7-6
7.4.2 Assembly ............................................ 7-6
8/Service Checkout Procedure........................ 8-1
8.1 Set-up ........................................................... 8-1
8.2 Leak Test - Supply Side ................................ 8-1
8.3 Flow Test ...................................................... 8-2
8.3.1 Continuous Mode Flow Test ............... 8-2
8.3.2 Intermittent Mode Flow Test ............... 8-2
8.4 Gauge Test ................................................... 8-3
8.5 Regulation Test ............................................. 8-3
8.6 Timing Cycle Adjustment .............................. 8-3
8.7 Vacuum Build-up/Bleed-down
Test - Intermittent Mode ................................ 8-3
8.8 Posi-Pulse Test ............................................. 8-3
8.9 Bleed Test ..................................................... 8-4
8.10 Leak Test - Patient Side ............................. 8-4
9/Maintenance ................................................... 9-1
9.1 General Maintenance of Suction
Equipment .................................................... 9-1
9.2 Recommended Maintenance Schedule ....... 9-1
9.2.1 Maintenance Schedule ....................... 9-1
9.3 Repair Policy ................................................ 9-2
9.4 Technical Assistance .................................... 9-2
9.5 Return Instructions ....................................... 9-2
10/Ordering Information ................................. 10-1
10.1 Illustrated Parts ........................................ 10-1
10.2 Service Kits .............................................. 10-3
10.3 Fittings and Adapters ............................... 10-4
10.4 North American ........................................ 10-5
10.4.1 Regulator Options ........................ 10-5
10.4.2 Other Options ............................... 10-6
10.5 English Regulator Options .......................10-7
10.6 French Regulator Options ........................ 10-8
10.7 Spanish Regulator Options ...................... 10-9
10.8 English, French and Spanish
Other Options ........................................ 10-10
Appendix ...........................................................A-1
Installation procedure for Adapters/Probes
and Fittings. ........................................................A-1
i
Notes
ii
1/Precautions
1.1 Defi nitions
Note: A Note provides additional information to
clarify a point in the text.
Important: An Important statement is similar to a
note but of greater emphasis.
CAUTION: A CAUTION statement is used when
the possibility of damage to the equipment exists.
WARNING: A WARNING statement is used
when the possibility of injury to the patient or
the operator exists.
1.2 Warnings
The Pre-Use Checkout Procedure must be performed before using this equipment on each
patient. If the regulator fails any part of the Pre-Use
Checkout Procedure, it must be removed from service and repaired by qualifi ed service personnel.
Connect the Vacuum Regulator to the vacuum
source only. Connection to pressure sources even
momentarily could injure the patient or operator
and damage the equipment.
Always connect the regulator to the vacuum source
and check its operation before attaching the patient
connection.
The fi tting port of the regulator must be occluded
when setting the prescribed suction level. This
prevents the patient from receiving higher than
required suction levels.
Do not use this device in the presence of fl amma-
ble anesthetics. Static charges may not dissipate
and possible explosion hazard exists in the presence of these agents.
After patient use, regulators may be contaminated.
Handle in accordance with your hospital’s infection
control policy.
Clean and sterilize all multiple use suction equipment before shipment to ensure transportation personnel and/or service personnel are not exposed to
any hazardous contamination.
Clean and sterilize all multiple use suction equipment if contaminated before disassembly, to ensure
service personnel are not exposed to hazardous
contamination.
Following sterilization with ethylene oxide, parts
should be quarantined in a well ventilated area to
allow dissipation of residual ethylene oxide gas
absorbed by the material. Aerate parts for 8 hours
o
at 130
If the Vacuum Regulator is repaired or disassem-
bled in any manner, the Service Checkout Procedure must be performed before using the equipment on the patient.
The Posi-Pulse ISU must be mounted vertically for
proper operation. The regulator may not operate
correctly in any other position.
For proper Posi-Pulse operation, the Posi-Pulse
ISU’s “On” and “Off” timing cycles must be a minimum of 10 seconds.
If the fl ow control valve is rotated fully clockwise,
the ISU and Posi-Pulse ISU will not cycle in the
intermittent mode. Drainage will cease.
When using the Posi-Pulse ISU with a Posi-Pulse
Device, avoid using suction over 200 mm Hg/26
kPa or Posi-Pulse operation may not allow effective
drainage.
It may be possible to set the vacuum limit to zero.
If there is no suction present, rotate set screw
counterclockwise and/or check Chapter 6/Troubleshooting.
If the screws on the timing valves are turned all the
way clockwise, the ISU and Posi-Pulse ISU will not
cycle.
F (54oC).
1-1 1-1
6700-0082-000 07/2006
1/Precautions
1.3 Cautions
A supply vacuum of less than 15 in Hg/51 kPa (380
mm Hg) may impair Posi-Pulse ISU and Posi-Pulse
Device operation.
Cleaning the gauge may result in damage.
Do not lubricate any internal components of the
regulator module.
Do not over-tighten the timing valve stem. Needle
portion of the valve may be damaged.
Do not steam autoclave or liquid sterilize the ISU or
Posi-Pulse ISU. Severe impairment to the operation of the regulator will result. The only acceptable
method of sterilization is with gas (ethylene oxide).
Do not use any 1Loctite® products to seal the fi tting
and adapter port threads (or products which contain Methacrylate Ester as an active ingredient).
Only competent individuals trained in the repair of
this equipment should attempt to service it.
Sterilization with ethylene oxide mixtures may
cause crazing (minute superfi cial cracking) of some
plastic parts. Crazing will be more pronounced
when mixtures containing 2Freon® are used.
The cap screws can strip the regulator module
housing threads if they are screwed in too tight.
The gauge assembly must be handled with utmost
care to retain its precision. If the lens is removed,
do not rest the gauge on its face.
To help prevent aspirate from entering the regulator, as a result of misuse, an Overfl ow Safety Trap
and suction fi lter, should be attached prior to its
use. Aspirate in the regulator will impair the operation. The use of the Overfl ow Safety Trap and suc-
tion fi lter will help prevent this and extend the life of
the suction equipment.
To prevent stripping the plastic threads, place the
screw in the hole and turn counterclockwise until it
drops into the original threads. Tighten screw.
Use of lubricants other than recommended, may
degrade plastic or rubber components.
Not for Field or Transport Use**
1
Loctite is the registered trademark of the Loctite Corporation.
2
Freon is the registered trademark of the DuPont Co.
**The categories of Field and Transport Use are specifi cally defi ned in
ISO 10079-3 (BS 7259: Part 2). "Field" means use at accidents or
emergencies outside a hospital. "Transport" means use in ambulances, cares and airplanes. These situations may expose the equipment
to uneven support, water, dirt, mechanical shock and temperature
extremes. Ohio Medical suction equipment has not been tested to
1-2 1-2
6700-0082-000 07/2006
2/Scope
This service manual contains service, maintenance
and parts information on four models of the ISU
and four models of the Posi-Pulse ISU.
North American (2)
English (2)
French (2)
Spanish (2)
2.1 North American Vacuum Regulators
Note: Part numbers given are for Vacuum Regulators without fi ttings or adapters.
Posi-Pulse ISU
6700-1252-900
2.2 English Vacuum Regulators
Note: Part numbers given are for Vacuum Regulators without fi ttings or adapters.
ISU
6700-1251-900
Posi-Pulse ISU
6700-1256-900
2-1 2-1
6700-0082-000 07/2006
ISU
6700-1253-900
2/Scope
2.3 French Vacuum Regulators
Note: Part numbers given are for Vacuum Regulators without fi ttings or adapters.
Posi-Pulse ISU
6700-1257-900
2.4 Spanish Vacuum Regulators
Note: Part numbers given are for Vacuum Regulators without fi ttings or adapters.
ISU
6700-1254-900
Posi-Pulse ISU
6700-1258-900
2-2 2-2
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ISU
6700-1255-900
3/Description and Specifications
3.1 Description
WARNING: Do not use this device in the presence of fl ammable anesthetics. Static charges
may not dissipate and possible explosion hazard exists in the presence of these agents.
The Intermittent Suction Unit (ISU) and Posi-Pulse
Intermittent Suction Unit (Posi-Pulse ISU) are dual
purpose Vacuum Regulators which provide either
intermittent or continuous suction. They can be
used for N.G. (intermittent) or pharyngeal/tracheal
(continuous) suctioning throughout the hospital.
On the Pediatric ISU, the maximum vacuum limit
is factory present to 135 mm Hg and the limit may
be adjusted between 80 and 150 mm Hg. It also
has a positive pressure relief. The low gauge and
the baby icon on the cover distinguish it from the
standard ISU.
Each unit contains a regulator module to regulate
and adjust suction, a vacuum gauge which indicates suction supplied, a patented Unilogic Module to silently and reliably switch suction on and
off, and timing valves which select and adjust the
length of the on and off cycles.
The Posi-Pulse ISU also contains a pause module
and Posi-Pulse attachment port. It can be used
with or without a disposable Posi-Pulse Drainage
Assist Device®.
In use, the vacuum source is connected through
the regulator module which functions as an automatic valve. Rotating the suction control knob
adjusts the position of the regulator module and
selects a predetermined level of suction.
During use, as the fl ow requirement increases, the
valve automatically opens to maintain suction at
the preset level. Conversely, when the fl ow require-
ment decreases, the valve automatically closes
to maintain suction at the preset level. The same
mechanism compensates for changes in supply
vacuum to automatically maintain the pre-set suction level.
Note: Posi-Pulse Drainage Assist Device
istered trademark of The BOC Group, Inc.
1. Suction Control Knob - Allows easy adjustment
of suction to the patient.
2. Mode Selector Knob - Allows quick and easy
mode changes.
Note: In the text of this manual, the international
graphic symbol for the intermittent mode normally written as:
will be written as |O|O|.
®
is a reg-
|
O
|
O
|
Pause
Module
Cover *
Vacuum
Gauge
Adapter
Mode
Selector
Knob
Fitting Port
Suction
Control Knob
* Note: Posi-Pulse ISU ONLY.
Port
Posi-Pulse
Attachment Port *
Front and Side View
3-1 3-1
6700-0082-000 07/2006
3/Description and Specifications
a. IOIOI (INTER) or IOIOI P-P (INTER) - Suc-
tion is intermittent (cycles on and off) and the
suction level can be adjusted with the suction
control knob. This is the selection used for
Posi-Pulse N.G. Drainage System operation.
When used as an Intermittent Suction Unit,
both the “On” and “Off” timing cycles are independently adjustable within a range of 3 to
30 seconds. These are pre-set at the factory
at a supply vacuum of 450 mm Hg/60 kPa to
provide approximately 15 seconds “On” and
8 seconds “Off” for the ISU and 15 seconds
“On” and 15 seconds “Off” for the Posi-Pulse
ISU. If the supply vacuum is different, the
timing cycles will vary. Adjustment procedures
are outlined in the Operations Section of this
manual under the heading “Setting the Timing
Cycles”.
b. O (OFF) - No suction is supplied to the pa-
tient.
c. I (CONT) - Suction is continuous and can be
adjusted with the suction control knob.
3. Vacuum Gauge - The suction level to the patient
is displayed during use.
3.2 Specifi cations
Gauge: Accuracy: ±5% of full scale defl ection
Flow Rates: | (CONT) Mode - 0 - 80 LPM without fi ttings at full
increase setting depending on supply vacuum and open
air fl ow
|O|O| (INTER)/|O|O| P-P (INTER) Mode - 8 LPM with the
suction control knob set to 120 mm Hg/16 kPa
Regulated Suction Range: 0 to 200 mm Hg/0 to 26 kPa
Pediatric ISU: 0 to 150 mmHg/0 to 20 kPa
Pre-Set Timing Cycles: ISU
(Intermittent Mode ONLY) On time cycle-15 seconds ± 3 seconds
Note: The Pre-set timing cycles Off time cycle-8 seconds ± 3 seconds
are set at a supply vacuum of
450 mm Hg/60 kPa. Posi-Pulse ISU
On time cycle-15 seconds ± 3 seconds
Off time cycle-15 seconds ± 3 seconds
Posi-Pulse Signal Line Pause: 6 seconds ± 4 seconds from the start of the OFF time
cycle
Weight: (Less Fittings) ISU - 28 oz/794 grams
Posi-Pulse ISU - 31 oz/879 grams
Pediatric ISU: 28 oz/794 grams
Dimensions: (Less Fittings) Height: 6.6 inches/168 mm
Width: 3.5 inches/89 mm
Depth: 4.8 inches/121 mm
Latex tubing, 0.25 in (6.4 mm) I.D. X 0 to full vacuum
12 in (30 cm) supplied: Flow dependent on source and setup
Disposable tubing (Available 0 to full vacuum
separately in some markets; Flow dependent on source and setup
6 mm I.D. X 450 mm, 750 mm
and 2 M) to connect regulator
and collection bottle
Disposable Suction Filter: 0 to full vacuum
0 to 100 Lpm @ 650 mmHg (-87 kPa)
Environmental Specifi cations
Operating Temperature Range: 40oF (4oC) to 120oF (49oC)
Storage Temperature Range: 0oF (-18oC) to 160oF (71oC)
Operating and Storage Relative Humidity: 5 to 95%
3-2 3-2
6700-0082-000 07/2006
4/Operation
4.1 Equipment Set-up
WARNING: Connect the Vacuum Regulator to
the vacuum source only. Connection to pressure sources even momentarily could injure the
patient or operator and damage the equipment.
WARNING: Always connect the regulator to
the vacuum source and check its operation
before attaching the patient connection.
WARNING: The Posi-Pulse ISU must be
mounted vertically for proper operation. The
regulator may not operate correctly in any other
position.
CAUTION: To help prevent aspirate from enter-
ing the regulator, an Overfl ow Safety Trap and
suction fi lter should be attached prior to its use.
Aspirate in the regulator will impair the operation.
The use of the Overfl ow Safety Trap and suciton
fi lter will help prevent this and extend the life of the
suction equipment.
If the regulator is equipped with an adapter for wall
outlets, insert the adapter into the vacuum wall
outlet. If the regulator is mounted elsewhere, connect a vacuum supply hose between the regulator’s
adapter port and the wall outlet. Connect the
Collection Bottle’s vacuum port to the regulator’s
fi tting or Overfl ow Safety Trap with the appropriate
vacuum tubing.
Note: For proper installation of Adapters/Probes
and Fittings see Appendix.
For standard ISU operation, mount the Collection
Bottle above the patient.
For optimal Posi-Pulse system operation, mount
the Collection Bottle at or below patient level.
Connect the collection bottle's vacuum port to the
regulator's fi tting port or Overfl ow Safety Trap with
the appropriate suction fi lter and vacuum tubing.
Hospital-supplied suction tubing must be used
between the catheter and the collection bottle.
Recommended minimum inside diameter is 0.25 in
(6 mm).
An Ohio Medical High Flow Disposable Filter
should be used between the Collection Bottle and
the Vacuum Regulator to prevent contamination of
the regulator.
ISO 10079-3 (BS 7259: Part 2) states that "the usable volume of the collection container shall be not
less than 500 ml (section 5.1.2).
Suction Filters - Hydroiphilic
Pkg of 20 .........................................6730-0350-800
Pkg of 200 .......................................6730-0351-800
Suction Filters - Hydrophobic Filter
Tubing x 1/8" NPT x
tubing nipple tubing nipple
Pkg of 3 6730-0570-800 6730-0580-800
Pkg of 10 6730-0571-800 6730-0581-800
Pkg of 100 6730-0572-800 6730-0582-800
Vacuum
Regulator
Disposable
Suction Filter
Overfl ow
Safety Trap
Vacuum
Port
Connective Tubing
Patient
Port
Collection Bottle
Equipment Set-up
4-1 4-1
6700-0082-000 07/2006
4/Operation
4.1.1 Attaching the Safety Trap
CAUTION To help prevent aspirate from entering the regulator, wall outlet and pipeline system as a result of
Standard fi tting
1. Raise the sleeve and insert the trap into the regulator fi tting.
2. Turn the trap clockwise about one and a half turns to engage the threads. The trap does not need to be screwed
tight; an O-ring in the regulator fi tting provides a vacuum seal. The trap should rotate freely to allow the desired
tubing positioning.
3. Lower sleeve to lock trap in position.
misuse, an Overfl ow Safety Trap should be attached prior to its use. Aspirate in the regulator, wall
outlet and pipeline system may impair their operation. The use of the Overfl ow Safety Trap and suc-
tion fi lter will help prevent this and extend the life of suction equipment.
Regulator
Sleeve
DISS fi tting
1. Insert trap into the regulator fi tting. Situate the tubing in the desired position.
2. Turn the DISS wing nut clockwise to engage threads and tighten (there is no O-ring, so the vacuum seal depends
on a tight connection).
Regulator
Wing nut
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6700-0082-000 07/2006
4/Operation
4.2 Mode Selection
|O|O| (INTER) or |O|O| P-P (INTER) - Suction is
intermittent (cycles on and off) and the suction level
can be adjusted with the suction control knob. This
is the selection used for Posi-Pulse system operation.
O (OFF) - No suction is supplied to the patient.
IOIOI (INTER) or IOIOI P-P (INTER)
O (OFF)
| (CONT) - Suction is continuous and can be adjusted with the suction control knob.
4.3 Setting the Suction Level
WARNING: The fi tting port of the regulator
must be occluded when setting the prescribed
suction level. This prevents the patient from
receiving higher than required suction levels.
WARNING: When using the Posi-Pulse ISU
with a Posi-Pulse Device, avoid using suction
over 200 mm Hg/26 kPa or Posi-Pulse operation
may not allow effective drainage.
CAUTION: A supply vacuum of less than 15 in
Hg/51 kPa (380 mm Hg) may impair Posi-Pulse
ISU and Posi-Pulse Device operation.
1. Turn the mode selector knob to | (CONT).
2. Clamp the connective tubing to occlude the fi t-
ting port.
3. Rotate the suction control knob until the vacuum
gauge indicates the required setting.
I (CONT)
I
(CONT)
Clamp
Setting the Suction Level
4-3 4-3
6700-0082-000 07/2006
4/Operation
4.4 Pre-Use Checkout Procedure
WARNING: The Pre-Use Checkout Procedure
must be performed before using this equipment
on each patient. If the regulator fails any part
of the Pre-Use Checkout Procedure, it must be
removed from service and repaired by qualifi ed
service personnel.
WARNING: Always connect the regulator to
the vacuum source and check its operation
before attaching the patient connection.
Before the vacuum regulator is used, it must be
tested for correct operation as outlined below.
All tests must be performed with the regulator in
its normal (vertical) operating position and with a
minimum supply vacuum of 19.7 in Hg/67 kPa (500
mm Hg).
1. Turn the mode selector knob to O (OFF). Rotate
the suction control knob one full turn clockwise
(increase). Clamp the connective tubing to occlude the fi tting port. The gauge needle should
not move.
O
(OFF)
Clamp
2. Turn the mode selector knob to | (CONT). Rotate
the suction control knob fully counterclockwise
(decrease). Clamp the connective tubing. The
gauge needle should not move.
Step 1
I
(CONT)
Clamp
Step 2
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6700-0082-000 07/2006
4/Operation
3. Clamp Tubing
REGULATOR SETTING
Pediatric ISU Low: Increase the suction
to 60 mmHg/8kPa
Pediatric ISU Only: Clamp tubing and rotate suction control knob fully clockwise (increase). Check
that vacuum reading on gauge is no higher than
160 mmHg/21 kPa to verify this is a limited unit.
Slowly open and close the clamped tubing to create various fl ow rates through the regulator. Check
that the suction level is maintained when the tubing
is clamped.
Clamp
Release
Clamp
4. Turn the mode selector knob to |O|O| (INTER) or
|O|O| P-P (INTER). Clamp the connective tubing.
For the ISU, ensure that the timing cycles are
approximately 15 seconds “On” and 8 seconds
“Off” by observing the gauge needle.
For the Posi-Pulse ISU, ensure that the timing
cycles are approximately 15 seconds “On” and
15 seconds “Off” by observing the gauge needle.
I
O
I
(INTER)
O
I
Step 3
Clamp
Step 4
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6700-0082-000 07/2006
4/Operation
5. For Posi-Pulse ISU ONLY with a Posi-Pulse
Device
a. Connect the Posi-Pulse signal line (blue tub-
ing) to the attachment port.
b. Turn the mode selector knob to |O|O| P-P
(INTER).
c. Clamp the connective tubing.
I
PP
O
(INTER)
I
O
I
d. During the “On” cycle, ensure that the pistons
lift inside the Posi-Pulse Device’s clear chamber.
e. When the “Off” cycle begins, ensure that
there is a delay of 2 to 10 seconds before the
pistons drop.
ON
Cycle
Posi-Pulse Device
OFF
Cycle
Clamp
6. Reduce the suction level to zero and turn the
mode selector knob to O (OFF).
Step 5
O
(OFF)
Step 6
4-6 4-6
6700-0082-000 07/2006
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