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Pact MKIV XP User Manual page 8

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General Setup and Tips on the Skyscreen System:
 
1. The closest Skyscreen sensor should be 5-10 ft. downrange from the shooter.  
2. Aim so the bullet passes over the center of each screen at an altitude of between 4 and  
8 inches above the sensor and centered .   
3. Cables should be on the ground as much as possible.  
4. Cables should be separate from each other.   
5. Make sure the unit itself is NOT being hit by Muzzle Blast - Isolate the unit from the  
shockwave  
6. Make sure you are using a newly purchased, fully-charged battery .  
7. Bright overcast days work very well  
8. On VERY bright blue sky days , try canting the sensors over 60 to 90 degrees either left  
or right. That will likely increase the contrast of the bullet to the diffuser improving the  
ability to detect the bullet.  
9. If shooting indoors , you will have to rig an incandescent light over each screen, or get  
our M7 IR Skyscreen Upgrade Kit.   
 
Connect the SkyScreens to the MKIV XP
 
Plug the first screen into the START plug located on the back of your timer, and the second  
screen into the STOP plug. Switch the timer on, from " TIMER COMMAND " push the CHRN button.  
The timer will switch to " CHRONO COMMAND " and display the current screen separation on the  
bottom line of the display. If you need to adjust the screen separation, you can do so now. The  
default is 18" which is what our new M7 Skyscreen System is set to.   
 
NOTE : Older PACT screens will have 24" separation. To set a different screen separation, just push  
the SET key and enter your separation in inches then press SET again.  
 
Record Shots
 
 
Push the GO button, the timer will display " Chronograph mode running ". Fire a round over your  
Skyscreens. The display should say something like this:   
 
 
 
8  

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