950-0073-00 B SM, English, Arthrex Synergy UHD4 System 56 of 74
4.5 Recommended Annual Camera Control Unit Maintenance Requirements
Recommended Annual Camera Control Unit Maintenance Requirements
ZG < 100 mOhm from the ground pin on the power inlet module to
the Camera Control Unit’s exposed metal parts. *
Test Chassis Leakage Currents
IL < 100 uA in NORMAL Condition.
IL < 500 uA in Single Fault Conditions [300 uA US deviation] *
Test Earth Leakage Currents
IL < 5 mA NORMAL Condition
IL < 10 mA Single Fault Condition *
Test Dielectric Withstand
Test Line and Neutral to Ground @ V = 1500 V~, no breakdown *
* See IEC 60601-1 for test methods.
4.6 Replacement of the Lithium Battery
The Camera Control Unit [CCU] main circuit board contains a Lithium Battery for use in the Real Time
Clock Circuit. This battery should have a service life of 8 years.
1. If you need to replace the Lithium Battery.
(a) Use any UL recognized CR2032 Lithium Coin Cell [Eveready CR2032 for example].
(b) Remove the old Lithium Battery from its holder on the main circuit board.
(c) Replace with a new Lithium Battery.
NOTE: The Lithium Battery holder is polarized and indicates the polarity of the battery.
It will not allow for incorrect insertion of the Battery into the holder.
(d) Recycle the used battery.
Warning; Replacement of battery by inadequately trained personnel could result in a Hazard such
as Excessive Temperatures or Fire.
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