MARS
The blasting device MARS is specifically designed for use in the mining. The device enables to explode the electric detonators in successive switch with the total line resistance of up to 380 Ω. It also has a numerical ohmmeter for safe control of the line maintenance of the electric detonators.
The electric part and the maintenance free accumulator are placed into the plastic body. On the front panel of the device there are the membrane switches, signal lamps, terminal for quick connection of the lines of the electric detonators to the blasting device and the display of the ohmmeter. Every MARS has also the individual switch key to turn on and off the device.
| Ohmmeter range | 1 - 1999 Ω |
| Blasting line control current | 1 mA |
| Max resistance of a blasting line | 380 Ω |
| Measuring accuracy | +/- 0.5 % |
| Operating voltage | 9 V battery (PP3 size) |
| Working temperatures | -15 °C to +40 °C at 100 % relative humidity |
| Working voltage | 320 - 360 V |
| Length of the impulse | 2 - 4 ms |
| Capacitor | 68 μF |
| Protection level of the blasting device body | IP65 |
| Weight | 0.40 kg |
| Dimensions | 220 x 100 x 50 mm |