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MARS-2

Blasting Machine with Digital Line Tester

MARS-2 is a medium energy blasting machine that comes with a built-in digital line tester. The blasting machine is portable, compact and lightweight, and can easily be operated by a single person.

The integrated line tester measures the detonator line resistance to identify short circuits, breaks in the blasting line or circuits with excessive resistance prior to the blast. For safety reasons, the line tester current is limited to 1 mA.

MARS-2 includes output pulse tail cutting to limit the output pulse to 4 ms and quench the remaining capacitor charge. These safety features are necessary to eliminate potential secondary explosions of the flammable dust generated during the blast.

The device comes in an ABS enclosure and includes pushbutton switches, terminals for connecting electric detonator line, digital LCD screen for line testing and LEDs showing the state of the capacitor charge and the battery level.

For safety reasons there are two FIRE buttons. The operator has to push both buttons simultaneously for detonation.

Features and Benefits

  • Medium energy blasting machine

  • Built-in line tester with digital 0-1999 Ω reader

  • Battery level indicator LED

  • Short 4 ms output pulse

Technical Specifications

Metric

Units

Value

Permitted line resistance

Ω

380 (for Class 1 detonators)

Firing voltage

V

435

Firing energy

J

6.5

Capacitor nominal value

µF

68

Capacitor loading time

s

4 - 8

Blasts per battery charge

500 - 1000, depending on battery quality

Capacity (2 Ω, Class 1 detonators)

caps

180

Line resistance range

Ω

1 - 1999

Power supply

V

2x 9V batteries

Protection level

IP65

Operating temperature

°C

–20 to +50, 100% relative humidity

Weight

kg

0.36

Dimensions

mm

220 x 100 x 50

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