Important Notes
Note: The keyswitch should be placed in the OFF position for a minimum of 10 seconds before placing the PL522/523
disconnect switch in the OFF position. Failure to place key in OFF position for a minimum of 10 seconds may cause
current parameters of Service Meter Hours (SMH) and location to be lost and/or corrupted.
Note: When the PL522/523 disconnect switch is in the OFF position, no communication between the machine and
back office will take place.
Note: While the blast zone switch is in the OFF position, the PL522/523 will not track SMH hours. An SMH
adjustment will be required after power is restored to PL522/523 .