Stryker PneumoSure User manual

EN
DE
2007/09 www.stryker.com 1000-xxx-xxx Rev. A
Service Manual
Service Handbuch
Insufflator for Laparoscopy and Vessel Harvesting
PRELIMINARY COPY

EN
DE
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subject to trademark protection.
Users of this product should not hesitate to point out to us any errors and uncla-
rities in this manual.
Copyright © STRYKER ENDOSCOPY
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© STRYKER ENDOSCOPY
EC REP
Model/Baureihe:
F114/1200630/10000004431 00/0907/fdu
Stryker Endoscopy
5900 Optical Court, San Jose
CA 95138 (USA)
[phone] [phone]
www.stryker.com
Stryker European Rep-
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CE marking according to directive 93/42/EEC
CE Kennzeichnung gemäß Richtlinie 93/42/CEE

Table of Contents
EN
1 Safety Instructions . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3
1.1 Liability . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3
1.2 Certification/Seal . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3
2 Before Commencing Work . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4
2.1 Technical/Professional Requirements . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4
2.2 Tools and Test Equipment . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4
2.3 Supplemental Resources . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5
3 Device Setup . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6
3.1 Pneumo Sure Function Diagram . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6
3.2 Mechanical Construction of the Pneumo Sure . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7
3.3 Pneumo Sure Wiring Diagram . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8
3.4 Device Front . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 9
3.5 Device Rear. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 9
3.6 Opening the Device . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .10
4 Maintenance and Service Tasks . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .11
4.1 Safety Test . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .11
4.2 Condition of Front Panel and Case . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .11
4.3 Condition of Cables . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .11
4.4 Condition of Tubes. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .12
4.5 Condition of Electronics Boards . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .12
4.6 Checking the High Pressure Unit HPU . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .12
4.6.1 Checking Gas Supply Connection/Gas Inlet Filter . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .12
4.6.2 Checking the High Pressure Sensor. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .13
4.6.3 Checking High Pressure Regulator at the HPU . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .14
4.6.4 Checking High Pressure Unit HPU for Leaks. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .15
4.6.5 Checking the High Pressure Heating Unit. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .15
4.6.6 Checking High Pressure Safety Valve HSV at the HPU . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .16
4.7 Mounting the Calibration Adapter . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .17
4.8 Testing the Low Pressure Unit LPU for Leaks . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .18
4.9 Testing the Venting System and Overpressure Alarm . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .20
4.10 Testing the Occlusion Warning . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .21
4.11 Fluid Sensor Test. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .22
5 Service Menu. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .23
5.1 Service Menu Access . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .24
5.2 Service Menu Overview . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .25
5.3 Touch Display Calibration . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .26
5.4 Offset Calibration. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .27
5.5 LOW Pressure Calibration . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .28
5.6 HIGH Pressure Calibration. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .29
5.7 LPR Calibration . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .30
5.8 Flow Calibration . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .31
5.9 LSV Calibration . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .32
5.10 12-hr Test . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .33
5.11 Resetting to Factory Defaults . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .34
5.12 Viewing Program Version . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .35
5.13 Viewing Customer Version . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .36
5.14 Deleting Contamination. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .37
6 Replacing Components and Modules . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 39
6.1 Uninstalling/Installing Gas Supply Connection . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .40
6.2 Uninstalling/Installing High Pressure Unit HPU . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .41
6.2.1 Replacing the Heater/Temperature Sensor . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .42
6.3 Uninstalling/Installing Low Pressure Unit LPU . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .43
6.4 Uninstalling/Installing PPV Valve . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .44
6.5 Uninstalling/Installing Power Supply Unit . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .46
6.6 Uninstalling/Installing Mains Socket with Fuse Holder . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .47
6.7 Uninstalling/Installing Potential equalization MC-Plug. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .48
6.8 Uninstalling/Installing MIO/Board MIO LCD . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .49
6.9 Uninstalling/Installing BAM Board . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .51
6.10 Uninstalling/Installing NET Board/Power Switch. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .52
6.11 Uninstalling/Installing IFM Board/ SIDNE Interface . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .54
6.12 Uninstalling/Installing HPL Board . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .56
6.13 Uninstalling/Installing Fluid Sensor . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .57
6.14 Uninstalling/Installing Device Front. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .58

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Table of Contents
6.15 Uninstalling/Installing Tube Connection . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .59
6.16 Uninstalling/Installing Tube Detection . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .61
6.17 Uninstalling/Installing Snap Lock . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .62
6.18 Uninstalling/Installing Touch Display . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .64
7 Spare Parts List . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 67
8 Error and Warning Messages . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 68
9 Technical Data . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 70
10 Abbreviations . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 71
11 Appendix . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 72
11.1 Service and Checklist . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .72

Safety Instructions
3
EN
1SafetyInstructions
DANGER!
Before opening the device, disconnect device from power supply by pulling the
power cable.
1.1 Liability
Device and accessories have been carefully inspected at the factory before ship-
ping. However, the manufacturer is only liable for safety and reliability as well as
functionality if all inspections and repairs have been performed by authorized
technicians and if the device and the accessories are used only as intended.
WARNING!
All maintenance and repair tasks as well as any modifications are to be per-
formed only by personnel or technicians authorized by the manufacturer. The
power supply has to be installed in compliance with DIN/IEC.
An authorized service technician has to inspect and service the device to ensure
the safety and functionality of the device every two years. If the service interval
is not maintained, the manufacturer does not assume any liability for the func-
tional safety of the device. Authorized service technicians are trained and certi-
fied only by the manufacturer. The manufacturer is not liable for direct or
consequential damages, and the warranty becomes null and void if:
• the device or the accessories are used improperly;
• the instructions and rules in the manual are not adhered to;
• the device or the accessories are improperly prepared or maintained;
• unauthorized persons perform repairs, adjustments, or alterations on the de-
vice or accessories;
• the prescribed inspection and maintenance schedules are not adhered to.
The service and maintenance of the device and its accessories has to be carried
out as per instructions to ensure the safe operation of the device. Check function
and completeness of the device after every service or maintenance activity to en-
sure the safety of the patient and user/operator are not affected or diminished
in any way. Factory-new and repaired products must be prepared and tested ac-
cording to the manual prior to use.
1.2 Certification/Seal
The operator of the device has to receive a certificate from the service technician
stating the type and scope of the performed service or maintenance tasks. This
certificate must list the date of the service or maintenance task as well as the
company and signature. Please use the maintenance and checklist enclosed in
back of the service manual. After the repair work is concluded, a service seal will
be attached to the device by the authorized service technician.

4
EN
Before Commencing Work
2 Before Commencing Work
Environmental conditions Please familiarize yourself with the safety notes listed in the enclosed device
manual as well as local safety rules and regulations before commencing any
work.
• The ambient temperature must be between 10 °C and 40 °C.
• The relative humidity must be between 30% and 75%.
• Place the device on a level surface in a dry environment.
• Before operating the device, make sure the installation area is free of materials
subject to or the cause of electrostatic electricity, e.g., floor coverings.
2.1 Technical/Professional Requirements
All service tasks such as safety inspections (SI), maintenance, and repair work
must be performed by personnel trained and authorized by Stryker. The follow-
ing is required:
• Knowledge of all safety-relevant rules and regulations necessary to operate in-
sufflation devices.
• Knowledge of the current technical developments and the software status.
• Knowledge of electro technical and electronic devices and processes.
• Knowledge about the use of electrical test and measurement equipment.
• Good mechanical skills.
• Stryker service technician certificate
2.2 Tools and Test Equipment
Make sure the measuring instruments are calibrated and in perfect working or-
der before starting any maintenance tasks. The following tools and measuring in-
struments must be kept readily available:
• Multimeter: Voltage up to 1000 V AC/DC, electric current 10 A, with ohmmeter
and continuity tester
• ESD protective mat, antistatic wristband, cable
• Serial 9-pin 1:1 PC cable
• Manometer measurement range 0-100 mm Hg, measurement class 1.0
• Manometer measurement range 0-7 bar, measurement class 1.6
• Manometer measurement range 0-100 bar, measurement class 1.6
• Flow column range 0-50 l/min CO2, calibrated in slpm (standard liter per
minute) 24 °C/1013 mbar, max. pressure drop at 9l/min < 10 mbar
• Safety test measuring instruments/tools
• Screwdrivers: 2x Phillips (medium), 2x slotted (medium)
• Socket wrench SW5, SW5, 5, SW7, SW10
• Gas bottle (pressure >50 bar)
• Jaw wrench: SW5, 5, SW7, SW24
• Allen wrench: SW2, SW4
• Box wrench for M18x1
• Side nippers: Small
• Assembly wrench for tube connection
• Tweezers or pointed pliers
• Calibration adapter
• Device manual
• Service manual
• Windows 9x or later, Windows NT4 with Service Pack 2 or later
• IBM PC or compatible with CD drive
• Device software (CD)
• Internet access
• Medical Product Brochure (MPB)*
*localized

Before Commencing Work
5
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2.3 Supplemental Resources
Supplemental resourcesThe following supplemental tools, test resources, and measurement instruments
are required to perform the service and maintenance routines described in this
manual.
• Calibration adapter
• T-adapter 6x6x6 mm with venting valve
• Internet access for software update via GlobalServices.net www.womser-
vice.com

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Device Setup
3DeviceSetup
3.1 Pneumo Sure Function Diagram
(1) Gas supply (17) Flow sensor (DPS)
(2) Gas bottle connection (18) Pressure sensor II (PMS)
(3) High pressure unit (HPU) (19) Output line valve (OLV)
(4) Gas inlet filter (20) Temperature sensor (STS)
(5) High pressure sensor 60 bar (HPS) (21) Pressure sensor III (PWS)
(6) High pressure regulator 2 bar (HPR) (22) Low pressure safety valve 80 mm Hg (LSV)
(7) High pressure temperature sensor (HTS) (23) Fluid sensor (FLS)
(8) High pressure safety valve 3.5 bar (24) Connection for RTP system
(9) Gas heating for high pressure unit (HPH) (25) Insufflation tube connection
(10) Low pressure unit (LPU) (26) Heater coil for gas heating
(11) Low pressure regulator 120 mm Hg (LPR) (27) Temperature sensor for gas heating
(12) Patient pressure valve (PPV) (28) Loudspeaker
(13) Median pressure safety valve 500 mm Hg (MSV) (29) Display touch panel (LCD)
(14) Proportional valve (PRV) (30) SIDNE interface
(15) Pressure sensor I (PMS) (31) Service interface (SRV)
(16) Venting valve (VEV)

Device Setup
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3.2 Mechanical Construction of the Pneumo Sure
(1)
(2)
(3)
(4)
(5)
(6)
(7)
(8)
(9)
(10)
(19)
(18)
(17)
(16)
(15)
(14)
(13)
(12)
(11)
(1) Case lid (11) Tube connection
(2) Cover plate for power supply unit (12) ON/OFF power switch
(3) Power supply controller board (13) Display touch panel
(4) Fuse holder (14) Faceplate
(5) Mains socket (15) Con-rods
(6) SIDNE interface (optional) (16) NET board (power switch)
(7) Potential equalization MC-plug, USA (17) Low pressure unit (LPU)
(8) Gas connection US (18) BAM board
(9) Lower part of case (19) IFM board (optional)
(10) High pressure unit HPU

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Device Setup
3.3 Pneumo Sure Wiring Diagram

Device Setup
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3.4 Device Front
3.5 Device Rear
Fig. 3-1 Front view of the device
(1) ON/OFF power switch
(2) Display touch panel (LCD)
(3) Tube connection
(4) Case lid
(1) (2) (3) (4)
Fig. 3-2 Rear view of the device
(1) Type plate
(2) Device data plate
(3) SIDNE interface
(4) Service interface
(5) Potential equalization plug
(6) Mains socket
(7) Fuse holder
(8) Gas supply connection, US
(9) Service seal
CO2
(9) (8) (7) (6)
(1) (2) (3) (4) (5)

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Device Setup
3.6 Opening the Device
DANGER!
Disconnect device from power supply.
You need a crosstip (Phillips) screwdriver size 2 to open the device. Follow the
steps depicted in Fig. 3-3:
a. Turn the four Phillips screws (2) counterclockwise to remove them from the
rear of the device.
b. Slightly lift the case lid (1) and pull off approx. 3 cm towards rear.
c. Remove case lid (1) completely by lifting up.
Follow these steps in reverse for assembly.
Fig. 3-3 Opening the device
(1) Case lid
(2) 4x Phillips screws
(1)
(2) a
bb
c
ð

Maintenance and Service Tasks
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4 Maintenance and Service Tasks
Two-year maintenance intervalAn authorized service technician has to inspect and service the device at appro-
priate intervals to ensure the safety and functionality of the unit. The minimum
service interval is two years, depending on frequency and duration of use. If the
service interval is not maintained, the manufacturer does not assume any liabil-
ity for the functional safety of the device. A sticker located on the rear panel of
the device will remind you of the latest date for the next service or maintenance
check.
Annual inspectionMaintenance and service include the tasks associated with the annual inspection
(see device manual). The annual inspection thus includes the following tests and
checks described in detail in chapter 13 of the device manual:
• Safety Test
• Basic function test
• Pressure sensor test
• Pressure monitoring test
• Venting valve test
• Max. device pressure test
• Gas flow rate test
CertificateIssue a certificate after inspecting the unit or performing any service tasks. This
certificate lists the type and scope of the service as well as the date and name of
the servicing company together wit the signature of the service technician.
4.1 Safety Test
A safety test has to be carried out by a trained technician within the scope of the
annual inspection.
A visual inspection must be performed. Of particular importance is that
• the fuse corresponds with the specifications indicated by the manufacturer,
• labels and stickers on device are legible,
• the mechanical condition of the device allows for its safe use,
• the device is clean to ensure proper and safe functionality.
Measure leakage currents according to DIN EN 60601-1/IEC 60601-1.
Measure protective conductor resistance according to DIN EN 60601-1. The pro-
tective conductor resistance is measured while device is connected to the power
supply. The max. value is 0.2 Ω. Measure the insulation resistance with 500-700
V DC. The min. value is 50 MΩ. The measurement of voltage stability should not
be performed using high voltage. As an alternative, perform safety test according
to DIN VDE 0751 Section 1.
4.2 Condition of Front Panel and Case
Check front plate and housing for any damage. Check for function and safety im-
pairments. Check control panel, display, and LEDs for proper function.
4.3 Condition of Cables
Check all cables for damage and proper fit. Any cables suspected of being dam-
aged and/or flawed in any way (e.g., insufficient insulation, breaks, malfunction-
ing contacts, etc.) must be replaced.

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Maintenance and Service Tasks
4.4 Condition of Tubes
Check all tubes for damage and proper fit. Replace any tube(s) suspected of leak-
ing, brittleness, or other damages.
4.5 Condition of Electronics Boards
To preserve the safety of the device, replace any boards showing corrosion or oth-
er damage at contact or soldering points.
4.6 Checking the High Pressure Unit HPU
High pressure unit The high pressure unit includes:
• Gas inlet filter
• High pressure sensor HPS
• High-pressure regulator HPR
• High pressure gas heating HPH
• High pressure safety valve HSV
4.6.1 Checking Gas Supply Connection/Gas Inlet Filter
Soiling The gas inlet filter (3) may be plugged or soiled due to unclean gas or gas supply
residues (see Fig. 4-1 Gas supply connection). This type of soiling, however, can-
not be detected externally. Heavy soiling is especially noticeable during higher
flow rates and results in the actual gas flow falling short of the nominal gas flow
during active insufflation. If cleaning the surface of the gas inlet filter does not
yield any improvement, the gas supply connection (1) must be replaced in its en-
tirety (see chapter 6.1 Uninstalling/Installing Gas Supply Connection).
WARNING!
Make sure to exchange the gas supply connection US with a gas supply connec-
tion for house gas when connection to a house gas supply. Otherwise, the device
exhibits the behavior described above.
Fig. 4-1 Gas supply connection
(1) Gas connection US
(2) Wrench flat WS24
(3) Gas inlet filter
(1)
(3)
(2)

Maintenance and Service Tasks
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Gas connection sealThe gas supply connection has to be removed in order to be able to check the seal
(5) (see chapter 6.1 Uninstalling/Installing Gas Supply Connection). When in-
serting the new gas supply connection, make sure to insert the anti-twist stop
(4) properly.
4.6.2 Checking the High Pressure Sensor
Follow these steps to check the function of the high pressure sensor (1) (see Fig.
4-3 Position of high pressure sensor):
1. The device is open and switched on. A gas bottle (pressure >50 bar) is con-
nected and open.
2. The gas supply display depicts the maximum supply pressure.
3. While device is switched on and the gas bottle is connected and opened, pull
plug ST3/cable (3) of the high pressure sensor off the PCU board (4).
4. In the display, the error message Check gas supply must be depicted. The gas
supply display depicts a pressure of < 15 bar. Reconnect plug connector (3)
with PCU board (4).
5. The test of the high pressure sensor has been completed successfully.
Corrective measure• If the error message and pressure reading Pressure <15 bar are not displayed,
the high pressure unit HPU or LPU must be replaced.
Fig. 4-2 Disassembled gas supply con-
nection
(4) Anti-twist stop
(5) O-ring (seal)
(4)
(5)
Fig. 4-3 Position of high pressure sen-
sor
(1) High pressure sensor HPS
(2) High pressure unit HPU
(3) Plug ST3/cable leading to pressure
sensor HPS
(4) PCU board
(1)
(2)
(3)
(4)

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Maintenance and Service Tasks
4.6.3 Checking High Pressure Regulator at the HPU
WARNING!
Discharge the pressure before removing a tube from the HPU.
1. Remove the high pressure tube (2) from the HPU outlet (see Fig. 4-5 High
pressure unit HPU, press down the plastic ring and pull out tube) and connect
a T-adapter with venting valve and 0-7 bar manometer.
2. Connect the device to a gas bottle (pressure > 50 bar) and open the bottle.
3. Relieve pressure of tube at the additionally connected outlet valve.
A stable end value of 1.5 to 2.5 bar must be reached.
NOTE!
The output value drops with an increasing temperature (e.g. long operation
time) and has to be adjusted if necessary.
Remove the test equipment and reinsert the high pressure tube (2) or continue
with chapter 4.6.4 Checking High Pressure Unit HPU for Leaks .
Corrective measure • Use the adjustment screw (3) at the high pressure regulator in case values de-
viate from the tolerance range. If this is not possible, the high pressure unit
HPU must be replaced.
Fig. 4-4 Position of adjustment screw
at HPU
(1) High pressure unit HPU
(2) High pressure tube HPT
(3) Adjustment screw
(3)
(2)
(1)

Maintenance and Service Tasks
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4.6.4 Checking High Pressure Unit HPU for Leaks
1. Connect a gas bottle with 0-100 bar manometer to gas supply connection at
rear of device.
2. Remove the high pressure tube (3) from the HPU outlet (1) (pinch plastic
ring (2) and pull out tube (3)).
3. Connect a T-adapter with venting valve and 0-7 bar manometer.
4. Briefly open and then re-close the gas bottle.
After 10 minutes, the pressure at the 0-7 bar manometer should not have
dropped more than 5 bar.
Corrective measure• Checking gas supply connection (O-ring).
• Replacing the high pressure unit HPU.
4.6.5 Checking the High Pressure Heating Unit
Fig. 4-5 High pressure unit HPU
(1) High pressure unit HPU
(2) Plastic ring
(3) High pressure tube HPT
(1) (2)
(3)
press
pull
Fig. 4-6 Position of high pressure heat-
ing unit HPH
(1) High pressure unit HPU
(2) High pressure sensor HPS
(3) Heater/temperature sensor
(4) Fastening screw with insulating
bush
(5) Insulation/heat conducting foil
(6) Adapter 01 for HPU (metal block)
(1)
(2)
(3)
(4)
(5)
(6)

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Maintenance and Service Tasks
The high pressure heater is not monitored by the software. Leave the device
switched on for approx. 15 minutes. Use your fingers to feel whether the metal
block (6) (adapter 01 for HPM) has become slightly warm. Fig. 4-6 Position of
high pressure heating unit HPH). If the metal block is not warm, check the SMD
fuse (9) on the PCU board (7). The fuse can be removed with a pointed pair of
pliers or a pair of tweezers.
DANGER!
Disconnect device from power supply.
Corrective Measure If the fuse is intact and the block is still not warm to the touch, the heater (3)
and/or the LPU have to be replaced (see chapter 6.2.1 Replacing the Heater/Tem-
perature Sensor and chapter 6.3 Uninstalling/Installing Low Pressure Unit LPU).
When installing the heater (3), make sure it is placed completely on the insulat-
ing foil (5). Attach heater (3) with the fastening screw (4) and a plastic insulat-
ing bush.
4.6.6 Checking High Pressure Safety Valve HSV at the HPU
Replace the HPU when hearing a continuous hissing sound emitted by the HSV
when checking the high pressure regulator (HPR). A short hissing sound after the
gas supply is opened for the first time is acceptable.
Fig. 4-7 High pressure gas heater con-
nections
(7) PCU board
(8) Connection of heater/temperature
sensor
(7)
(8)
Fig. 4-8 Position of SMD fuse
(9) SMD super-fast-acting fuse 2A
(10) PCU board
(9)
(10)

Maintenance and Service Tasks
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1. While pressurized, use the venting ring (3) to remove the venting pin (2) in
axial direction up to the stop. A clear hissing sound must be heard.
2. Let the venting pin (2) drop back to its original position. The hissing sound
must stop immediately. The movement of the sealing plunger plug of the
high pressure fuse (1) is clearly visible through the holes (4) in the spanner
flats of the high pressure valve.
Corrective measure• Replacing the HPU.
4.7 Mounting the Calibration Adapter
The calibrations and tests indicated in the service manual require mounting of a
calibration adapter. This adapter consists of a calibration tube with connection
plug, a T-adapter with 3-port valve and 2 emerging tubes.
1. Slide plug of the calibration tube into tube connection of the device until
locked into place.
2. Turn the Allen screw clockwise using a size 4 Allen wrench up to the stop.
3. Connect the corresponding supplementary equipment to the two emerging
tubes in accordance with the respective illustration. Make sure the emerging
tube with the larger inner diameter is connected to a flowmeter while the
smaller tube is to be connected to a manometer.
Fig. 4-9 Checking high pressure safety
valve HSV at the HPU
(1) High pressure safety valve
(2) Venting pin
(3) Venting ring
(4) Drilled holes
(1)
(2)
(3)
(4)

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Maintenance and Service Tasks
4.8 Testing the Low Pressure Unit LPU for Leaks
1. Switch device off.
2. Attach the calibration adapter (5) to the device as described in chapter 4.7
Mounting the Calibration Adapter and turn the 3-port valve (5) to the depict-
ed position.
3. Connect a manometer (3) and an air-filled syringe (1) to the calibration
adapter (6).
4. Use the syringe to generate a pressure of 50 mm Hg.
5. Clamp off tube (2) at 50 mm Hg using a tube clamp. It is also possible to turn
the 3-port valve to the right by 90° instead.
The pressure at the manometer should not have dropped more 2 mm Hg within
30 seconds.
Corrective measure • Check the calibration adapter for leaks by clamping off the tube leading to the
tube connection at the LPU (7) using a tube clamp and carrying out a leak test
once more. If another leak is detected, check the correct fit of the connection
adapter seal and check all tube connections of the adapter including those of
the 3-port valve. Replace the LPU if the calibration adapter does not have any
leaks. Then repeat the leak test.
• Check the tube at the fluid sensor (6) and the low pressure unit LPU (7) and
replace if necessary (see Fig. 4-11 Position of fluid sensor / low pressure tube
LPT).
• Replacing the LPU.
Fig. 4-10 Testing the low pressure unit
LPU for leaks
(1) Syringe
(2) Tube clamp
(3) Manometer 0-100 mm Hg
(4) Tube, small diameter
(5) Three-port valve
(6) Calibration adapter
mm Hg
(1) (2) (3) (6)(5)(4)