QUICK SET-UP INSTRUCTIONS FOR:
Beta & Gamma Shooting Chrony®s & Beta & Gamma Master Chrony®s

A. FOR OUTDOOR SHOOTING:

Step-1. Take Chrony to the shooting range; ensure a SAFE BACK STOP.

Step-2. Unfold Chrony unit; install a 9-V alkaline battery; mount unit on tripod; or place on table. Make sure that unit is fully open. For Master Chrony: Plug telephone cable into the back of front sensor housing, the other end into the left side of LCD Monitor box. For Chrony with Printer: Plug stereo cable to the left side of Printer, the other end to Chrony before turning on unit, see Fig.10. Distance of Chrony unit from muzzle: Air gun, .22 Rim fire => 3FT; Bow & Arrow =>4FT; Shot gun =>5FT; .30-30=>8FT; Large rifle=>10FT to 15FT; the bigger blast, the longer distance.

Step-3. On hazy, cloudy days install wire-rods only (as aiming guides), see Fig.7 below.

Step-4. On clear, sunny days install wire-rods with white plastic diffusers to simulate clouds. To install wire-rods and diffusers, see Fig.6 below. To set-up for different type of guns, see Fig. 8 & 9 below.

Step-5. Make sure battery is better than 7.5V and there is nothing between Chrony and sky ( no branches, no roof, etc.).

Step-6. Turn on Chrony, “ BE “ (B.E for metric) displays for Beta, Beta Master model; or “ GA “ (G.A for metric) displays for Gamma, Gamma Master Chrony and symbol bar bouncing up & down both sides.

Step-7. Shoot through centre of triangle; 4” above Chrony if open sights; 6” above Chrony if scope sights. Chrony starts to register shots in the first empty string.

Step-8. After each shot, Chrony will show the shot number then the velocity. The velocity will stay till you shoot again.

Features:

  • Beta model has 6 strings with maximum 10 shots each.
  • Gamma model has 50 strings for Velocity-Mode and 50 strings for Timer-Mode with maximum 10 shots each string (Changing string size page #16&17).
  • “ FU “ button: Press & Release to review the statistic velocity as Highest (Hi), Lowest (Lo), Average (Av) velocity, Extremely Spread (ES), Standard Deviation (SD), Total shots ( é ) and individual shots.
  • “FORGET ” button: Press & Release to delete all shots in a working string.
  • “ ST ” button: ¨Press & Release to save shots from working memory to permanent memory and automatically move to next empty string (to delete shots in permanent memory see page # 6). ¨ To review statistic velocity or download data into computer (requires an IBM/PC Interface (Item# 40) and a Chrony Ballistics II Software (Item# 37), not included): For Beta & Gamma Model, press & hold “ST” button while turning On unit to disable the photo sensors, see page # 18. For Beta & Gamma Master Model, just plug the separate battery-cable with jack (included) into LCD monitor box. ¨During reviewing statistic velocity, press & release ST button once will reset to “Ready Symbol -[ ]– “(means ready to shoot again see page# 7) and many press will scroll up string numbers.
  • “FU & ST” button: Press & Hold “FU” button while press & release “ST” button to scroll down string numbers.
  • “TIMER” button (for Gamma & Gamma Master Model only): ¨When Chrony first turn on or during shooting session, press & release to convert from Velocity-Mode to Timer-Mode which measures elapsed-time between shots, see page # 7. To convert back to Velocity-Mode, press and release “ ST “ button to reset to “ Ready Symbol – [ ] – “ then press & hold Timer button for more than 3 sec. ¨ Chrony measures velocity and elapsed-time between shots at the same time; selected mode will be visible while other mode will be invisible.

B. FOR INDOOR SHOOTING:

Repeat Step-1 & Step-2 above.

Step-2a. Assemble the Indoor Light Fixture as Fig.11 below.

Step-2b. Turn Off all halogen, fluorescent lights directly above Chrony.

Repeat Step-6 through Step-8 above.

Figures 6 - 11

Fig. 6:
Wire-Rod and Diffuser Assembly


Fig. 7:
Set-up on cloudy days without diffusers. Use Wire-Rods to line up Chrony with line of fire

Fig. 8:
Set-up on clear, sunny days with 9.25" wire-Rods & 2 end-piece Diffusers for bench-rest Rifle Shooting

Fig. 9:
Set-up on clear, sunny days with extended
Wire Rods & 3-piece Diffusers for Pistol, Archery and Shotgun.

Fig. 10:
Master Chrony with Ballistic Printer

 


Fig. 11: (Assembly)

1) Bolt the Indoor Light Fixture to the Center-Piece of the Plastic Diffuser with the ¼” Screws (8pcs). Making sure that the correct side of the Center-Piece faces up as showing Fig.11

2) Attach both Diffuser End-Pieces to the Center- Piece.

3) Insert the Wire-Rods into the front and rear sensor housings of the Chrony.

4) Mount the Diffusers over the Wire-Rods.

5) Plug into any 115 Volts ( 220 Volts for Europe ) electrical outlet and switch it on

Note: The tubular light bulbs are made by General Electric and available in most hardware stores. When replacing the light bulbs, please make sure that the light bulbs are the same type as the original ( 40-Watts Frosted light bulb).

CAUTION: Do not leave your Shooting Chrony® in a car on a warm to hot day. The liquid in the LCD may change to some degree (because of heat build-up) and fail, showing [8888].

 

If it doesn't unfold, it's not a Chrony®
Copyright © 1997-2009
Last updated: July, 2009
Pricing effective: · E. & O. E.