System Description

UTM-00355 | Rev 2

Page 214 of 261

27. Scan Key

 Scan the RED BlastCard at the back of the DigiShot

Ranger

 Enter the corresponding PIN

 Press to continue

 Press and Hold the NEXT button on the front of the

DigiShot

Ranger for 2 seconds

 The DigiShot

Ranger will initiate arming and a 30-second high-voltage charging

period followed by the 90-second blast window.

28. To disarm the blast

 From the Base Ranger press the button



Once all the applicable Bench Rangers are Armed and no fault has been detected then

user can proceed with Synchronized blasting of all Bench Rangers from Base. It is

important that the user ensures good RF communication level between the Base and all

Rangers.

Synchronized blast is performed in instances where the same bench is blasted with 2

Bench Rangers or when delays of adjacent benches will affect each other if the order of

blasting is altered. Also useful when there is a possibility of the rock from one bench

possibly cutting off the harness wire to the other bench during blasting.