Description

The EKA MD series are Ex-proof electronic blasting machines, driven by military approved microprocessor for ultimate level of safety, battery saving and simplicity of use. The primary purpose of EKA MD blasting machines is blasting in underground coal mines and tunneling.

Firing ability

Depending of the needs and the requirements of the end–user, EKA MD blasting machines can be produced to fire up to 230 electric blasting caps (EBC) type A (Class I), or up to 215 EBCs type U.
The pack of standard, fresh alkaline batteries provides up to 2000 charging cycles.

Safety

A self–test feature makes costly testing equipment and time consuming inspection procedures unnecessary.
Charging and firing is done by magnetic sensors without any mechanical or moving parts, thus enabling a reliable and long-lasting operating age. The device will not fire until fully charged to the designated voltage. The firing impulse cut–off time is less than 4 ms and can be pre-programmed in steps of 1 us.
The body of the machine is screwed with special tamper–resistant screws, ensuring that it will be closed trough all the operation period and that the battery changes can take place only in the service area.
The operating parameters of the blasting machine are continuously monitored through operating cycle by microprocessor. If any parameter is found to misbehave during the operating cycle, the blasting machine will automatically de-energize and shut down, signaling the malfunction. Furthermore, if the magnetic key is accidentally left in the “Charge” slot for more than 30 s or if the voltage drop is more than 50 V after the charging, the blasting machine will automatically de-energize and shut down. Otherwise, it will automatically recharge itself to the desired voltage immediately before firing.
The built-in “Battery low” indication ensures that the batteries are replaced in timely manner (before entering the pit).