Holes are primed and charged normally. Logging of detonator connectors can commence at any time and detonators to not need to be connected to the surface lines before logging commences.
Logging of connectors is usually done in a sequential order to take advantage of the Logger’s auto-increment capability and to make sure all detonators are logged. Log order numbers are used for rapid identification of problem detonators. The logging is safe, as only the connector is interrogated, not the detonator.
Before programming, testing of the network is done to detect leakage, damaged connectors or detonators and detonators that have not been connected into the surface cable. This is done with the AXXISTM Tester and should be done before programming starts; thus faults can be identified before the blast, reducing the risk of misfires.
Once logging and testing is complete, the data from the logger is transferred to the blasting box for programming and firing of the detonators via USB.
There is full two-way communication between the blasting box and the detonators. Each detonator is programmed after which a status check is done and information is returned to the blasting box about the status of each detonator. This includes the condition of the fusehead, capacitor and detonator programmed state.