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3.5 Recommended Annual Camera Control Unit Maintenance Requirements
Table 2: 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 < 500 uA NORMAL Condition [300 uA US deviation]
IL < 1 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.
3.6 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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