EKA D series are microprocessor driven blasting machines, primarily intended for use in construction, mining and quarrying.
Description
The EKA D series are digital, electronic blasting machines, driven by military approved microprocessor for ultimate level of safety, battery saving and simplicity of use.
Firing ability
Depending of the needs and the requirements of the end–user, standard EKA D 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 body of the machine is screwed with special tamper–resistant screws, ensuring that it will be closed trough all the operation period.
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.
Mechanical protection
The machine case is extremely tough and is made from 2 mm stainless steel, which makes the electronic circuitry: water, vapor, dust and tamper resistant, and gives an extremely high level of mechanical protection. The electronic components are casted in a monolithic block using a special compound, resistant to water, moisture, lyes, acids and all types of chemicals.
General purpose
Construction blasting
Surface and underground mining
Blasting in quarries
Tunneling
Technical Characteristics
Number of series | Single line of EBCs | Two parallel series of EBCs |
---|---|---|
Operating voltage | 650 – 680 V | 650 – 680 V |
Firing energy | >4.96 J | >4.96 J |
Capacity | 23.5 uF | 23.5 uF |
Inner resistance | 10 Ω | 10 Ω |
Nominal limit network resistance (Class I EBC) | 440 Ω | 170 Ω |
Current at limit network resistance (Class I EBC) | >1.20 A | >2.40 A |
Firing ability (Class I EBC) | 225 EBCs | 338 EBCs |
Nominal limit network resistance (Class II EBC) | 170 Ω | N/A |
Current at limit network resistance (Class II EBC) | >2.5 A | N/A |
Firing ability (Class II EBC) | 179 EBCs | N/A |
Power source | 9 V | |
Charging time | <10 s | |
Size | 217 x 80 x 46 mm | |
Weight | 1,7 kg | |
Operation temperature | -20 °C to +55 °C | |
Storage temperature | -40 °C to +70 °C | |
Ingress protection level | IP54 |
Number of series | Single line of EBCs | Two parallel series of EBCs | Three parallel series of EBCs |
---|---|---|---|
Operating voltage | 650 – 680 V | 650 – 680 V | 650 – 680 V |
Firing energy | > 10.56 J | > 10.56 J | > 10.56 J |
Capacity | 50.0 uF | 50.0 uF | 50.0 uF |
Inner resistance | 10 Ω | 10 Ω | 10 Ω |
Nominal limit resistance (Class I EBC) | 460 Ω | 195 Ω | 110 Ω |
Current at limit resistance (Class I EBC) | >1.2 A | >2.4 A | >3.6 A |
Firing ability (Class I EBC) | 238 EBCs | 391 EBCs | 466 EBCs |
Nominal limit resistance (Class II EBC) | 200 Ω | 72Ω | N/A |
Current at limit resistance (Class II EBC) | >2.5 A | >5.0 A | N/A |
Firing ability (Class II EBC) | 213 EBCs | 278 EBCs | N/A |
Power source | 9 V | 9 V | |
Charging time | <10 s | <10 s | |
Size | 115 x 67 x 32 mm | ||
Weight | 1,5 kg | ||
Operation temperature | -20 °C to +55 °C | ||
Storage temperature | -40 °C to +70 °C | ||
Ex protection | I M2 e ib mb Ex Mb | ||
Ingress protection level | IP54 |