BK Precision BK8510B - Reverse Voltage Protection (LRV)

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8 Reverse Voltage Protection (LRV)
This feature protects the DC load in case the DC input terminals are connected to a power source with reversed polarity.
If a reverse voltage condition is detected, the buzzer will sound and will be displayed on the VFD.
Operations to Clear the Reverse Voltage State
Check whether the connection is reversed; if so disconnect the power source.