Englo designs

and manufactures fine mechanical and electronics measuring devices

Englo designs

and manufactures fine mechanical and electronics measuring devices

Blasting machine with one point line tester BART-1

Blasting machine with one point line tester BART-1

BART-1 is a medium energy blasting machine that comes with a built-in digital line tester or digital ohmmeter.  It uses a hand generator and the operator does not need an external power supply or batteries. The blasting machine is portable, compact and lightweight, and can easily be operated by a single person.

The integrated line tester verifies 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 1mA.

BART-1 includes output pulse tail cutting to limit the impulse to 4ms 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 aluminum case that includes ON-OFF/L-test switch, terminal for connection of electric detonator lines, digital LED for line testing and a crank handle for capacitor loading. Both sides of the panel include READY LEDs to indicate the capacitor charge.

The blasting machines are rated IP65 under the international IEC 60529 standard and are splash and dust proof.

Maximum permitted line resistance 
Ω
700 
Capacity (in 2Ω caps approximately) caps 350
Firing energy  J 9.3
Firing voltage V
940
Power supply   hand cranked
Capacitor charging turns
10 - 12 crank turns
Capacitor capacity μF 23
Blasting pulse length ms 4
Line resistance testing   digital LED
Line resistance control point Ω 700 +/- 5
Maximum line testing current mA 1
Operating ambient temperature range
at 100% relative humidity
°C
-20 to +55 
(-4 °F to 131 °F)
Protection level
(per IEC 60529)
  IP65
Weight kg
1.3 
(12 lbs 14 oz)
Dimensions mm
200 x 143 x 55
(7¾"x5¾"x2¼")