Stryker PneumoSure, Service Manual, Page: 13 / 76

Maintenance and Service Tasks
11
EN
4 Maintenance and Service Tasks
Two-year maintenance interval An 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 inspection Maintenance 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
Certificate Issue 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 M
Ω
. 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.