Caldwell 720001 User manual

Product #720001 #721122 Instructions #1037402
Care & Usage Instructions
#721122 Premium Kit Contents:
1 - Chronograph
1 - Tripod
2 - Sun Shades
2 - IR LED Strips
1 - Carrying Case
1 - 15’ Audio Jack Cable
1 - Battery pack
1 - LED Strip splitter cable
4 - Rods
#720001 Chronograph Contents:
1 - Chronograph
2 - Sun Shades
1 - Carrying Sack
1 - 15’ Audio Jack Cable
4 - Rods

CHRONOGRAPH CONTENTS:
A - Chronograph
B - Sun Shades
C - Carrying Sack
D - 15’ Audio Jack Cable
E - Rods
PREMIUM KIT CONTENTS:
All Chronograph contents plus:
F - Tripod
G - Battery pack
H - LED Strip splitter cable
I - IR LED strips
J - Carrying Case
K - 110Volt AC Adapter
A.
C.
D.
F.
G.
H.
I.
B. E.
CONTENTS
J.
K.

SAFETY AND WARNINGS
READ THOROUGHLY ALL DIRECTIONS AND SAFETY INSTRUCTIONS
INCLUDED IN THE PACKAGE. FAILURE TO COMPLY MAY RESULT IN AN
UNSAFE FIREARM CONDITION THAT MAY CAUSE PROPERTY DAMAGE,
PERSONAL INJURY OR DEATH.
TARGET MUST HAVE A SAFE BACKSTOP. ALWAYS
FOLLOW ALL APPLICABLE SAFETY RULES WHILE USING THE
CHRONOGRAPH, INCLUDING BUT NOT LIMITEDTO:
1. FIREARM AND SHOOTING SAFETY RULES
2.AIRGUN, PAINTBALL GUN SAFETY RULES
3.AMMUNITION RELOADING SAFETY RULES
4.ARCHERY SAFETY RULES
IF YOU ARE NOT FAMILIAR WITH APPLICABLE RULES FOR YOUR
APPLICATION CONSULT THE MANUFACTURER(S) OF THE FIREARM,
AIRGUN, PAINTBALL GUN, BOW OR RELOADING EQUIPMENT/
COMPONENT…
VELOCITY MEASUREMENTS SHOULD NOT BE USED
TO CALCULATE COMBUSTION PRESSURES IN YOUR CARTRIDGE OR
CHAMBER. AGAIN, DO NOT EXCEED PUBLISHED MAXIMUM POWDER
LEVELS INYOUR AMMUNITION.
DO NOT TRY TO PROTECT YOUR CHRONOGRAPH
WITH ARMOR PLATING. BULLET RICOCHET FROM HITTING THIS
PLATING COULD CAUSE PROPERTY DAMAGE, PERSONAL INJURY OR
DEATH. CHRONOGRAPH COMPONENTS ARE REPLACEABLE.
ALL CHRONOGRAPH UNITS HAVE INHERENT UNCERTAINTY WHEN
RECORDING VELOCITY MEASUREMENTS. SEVERAL UNCONTROLLABLE
VARIABLES CAN AFFECT EACH MEASUREMENT AND CONTRIBUTE TO
THIS UNCERTAINTY, INCLUDING SUNLIGHT INTENSITY, SUNLIGHT
ORIENTATION, CLOUD COVER, WIND, SHADOWS, AND GROUND
REFLECTIVITY OF CEMENT, WATER,OR SNOW,ETC. WHEN COLLECTING
DATA, BE SUSPICIOUS OF ANY DATA POINTSTHAT HAVE GREATERTHAN
4% DIFFERENCE FROMTHAT AMMO’S AVERAGE STRINGVELOCITY.
SPECIAL CARE SHOULD BE TAKEN WHEN SHOOTING CERTAIN TYPES
OF AMMUNITION. GAS CHECKS, WADS, SABOTS, ETC. CAN SEPARATE
AND IMPACTYOUR CHRONOGRAPH CAUSING DAMAGETOTHE DEVICE.
AS WITH ANY ELECTRONIC DEVICE, WATER CAN DAMAGE CERTAIN
COMPONENTS. TO PREVENT DAMAGE, DO NOT USE CHRONOGRAPH
OUTSIDE WHEN IT IS RAINING WITHOUT BEING PROTECTED.

SPECIFICATIONS
• Velocity range 1 to 9000 FPS
• Power requirements: 9v battery (Not Included)
• Operating temperature: 20 – 120 degrees F
• Smart Phone Interface
ASSEMBLY
¼ - 20 threaded insert for tripod mounting
9V battery and spare battery compartment.
(batteries not included)
Rod and Sun Shade
attachment
Sun Shade Rod Pockets
Projectile Sensors
1. Install a 9 volt battery
2. Insert rod ends into Rod Pockets on the Chronograph housing
3. Install Sun Shades on ends of rods, be sure to seat rod ends all the way
into pockets on Sun Shades

OPERATION
MPS< >OFF< >FPS
1. Place Chronograph on stable surface at the appropriate height for ring projectile
through the shooting window.The Chronograph may be mounted on top of a
Tripod using the ¼-20 threaded insert.
2. Position the unit 10 to 15 feet in front of the muzzle of a rearm or
if using with a bow, at least one full arrow length in front
3.Align the Chronograph:
a. Height, so that the projectile travels through the center
of the shooting window
b.Tilt Angle, so projectile travels parallel to the top surface of the housing
c. Left/Right, so that projectile is in line with housing
4.Turn the unit on by selecting feet per second (FPS) or meters per second
(MPS) with the power switch
5. (Optional) Connect to smart phone via included audio cable
6. (Optional) Install Light Kit
a. Remove Sun Shades and place LED Strip Housings on top of Rods
b. Connect LED Strip Splitter Cable to each LED Strip
c. Connect the Splitter Cable to either the Battery Pack or
the 110 Volt AC Adapter
d. Rotate the switch on the Splitter Cable to on, one visible
red LED in each strip will illuminate.
NOTES (Premium kit ONLY):
Infrared (IR) LEDs provide the highest level of performance with the Chronograph sensors,
IR light is not visible to the human eye so one visible red LED is included in each light strip
for easy visual conrmation that the light kit is on and working.
The high output LEDs consume battery power rapidly, use high quality Alkaline or Lithium
batteries. Depending on battery type and environmental conditions a set of batteries will
only provide optimal light output for approximately 2 hours.
As a set of batteries loses power the red LEDs may still be partially visible even though the
IR LEDs are not putting out an optimal level of light. If you notice errors or inconsistent
readings, switch to 110 power or replace the batteries.
Use The 110 Volt AC adapter instead of batteries whenever possible.