Specifications – CDI Torque DIGITAL TORQUE TESTER (DTT) User Manual
Page 5

SPEcIFIcATIONS
RATCHET HEAD - Square drive, 36 teeth, sealed flex
DISPLAY - 4-digit LCD, torque units, CCW and battery
condition flags
SEALED KEY PAD
POWER - ON/OFF - auto self check - torque zero -
angle reset
UP - increments torque and angle setting
DOWN - decrements torque and angle setting
UNITS - unit mode select (ft-lb, in-Ib, Nm, °)
FUNCTIONS
SET - torque and angle - adjustable - audible and
tactile alert
TRACK - accumulated angular rotation with real
time update
PEAK HOLD - 10 sec. flashing at torque release
ACCURACY (72° F)
ANGLE: +/-1% of reading +/-1° angular velocity >
10°/sec < 180°/sec
TORQUE:
CW
CCW
+/-2% +/-3% of reading, 20% to 100% of full scale
+/-4% +/-6% of reading, 10% to 19% of full scale
+/-8% +/-10% of reading, 5% to 9% of full scale
PRESET RANGE
ANGLE: 5 to 360° CW or CCW (Display Resolution 10)
TORQUE: (Display Resolution as shown below)
overload
Model
ft-lb
Nm
in-lb
(ft-lb)
1002TAA 5.0-100.0 6.8-135.6 60-1200 125
2503TAA 12.5-250.0 16.9-338.9 150-3000 312
OPERATING TEMPERATURE: 55° to 95° F (13° to 35° C)
STORAGE TEMPERATURE: -1° to 122° F (-20° to 50° C)
MEASUREMENT DRIFT
ANGLE: -0.12 Angular Degrees per Degree C
TORQUE: +0.01% of reading per Degree C
HUMIDITY - up to 90% non-condensing
SPEcIFIcATIONS
DIMENSIONS
PART NUMBER
DRIVE
LENGTH
WEIGHT
1002TAA
3/8”
17 in.
2.2 lbs.
2503TAA
1/2”
27 in.
3.5 lbs.
BATTERY - Two (2) “CR123” Lithium cells, over 80
hours continuous operation.
AUTO SHUT-OFF - Auto power OFF will occur after 2
minutes of non-usage to conserve battery power.
PLEASE NOTE
1.
EQUIPMENT REQUIRED - Precision test bars and
certified calibration weights or another torque
source, accurate to 0.5% of reading.
2.
NOTES
- If the display shows “
Err0” at power on, the
wrench is damaged and must be returned to CDI
Torque Products for repair.
- If the display shows “
ErrA” in the angle mode,
fastener rotation speed has exceeded the capacity
of the wrench.
- The wrench must be held still during angle mode
reset. Motion is indicated by alternating outside
center segments of the display “
- -”
- Remove battery when stored for extended periods.
3.
BATTERY REPLACEMENT - Replace with two (2)
“CR123” Lithium cells only (available anywhere).
To replace battery, remove cover on underside of
handle (opposite display).
100%
30%
5%
REPLACE BATTERY
BATTERY
CONDITION
AUDIBLE
ALERT
TORQUE AND/OR
ANGLE DISPLAY
DECREMENT
KEY
ON/OFF
KEY
BAR
GRAPH
TORQUE
UNITS
INCREMENT
KEY
UNIT
KEY
TORQUE
Squar
e
Drive
For
ce
Torque Settings/Reading = Force x Distance
Torque Wrench Square Drive Distance = A
Set Torque = Fastener Torque
Set Torque =
x A
Fastener Torque
Torque Wrench Square Drive Distance = A
Fastener
Distance = B
A + B
90˚
90˚
Fastener
Distance = B
Set Torque =
x A
Fastener Torque
Torque Wrench Square Drive Distance = A
For Angles Less Than 15 Degrees
Set Torque = Fastener Torque (approximately)
DO NOT EXCEED 15 DEGREES
A + B
15˚
15˚
100%
30%
5%
REPLACE BATTERY
BATTERY
CONDITION
AUDIBLE
ALERT
TORQUE AND/OR
ANGLE DISPLAY
DECREMENT
KEY
ON/OFF
KEY
BAR
GRAPH
TORQUE
UNITS
INCREMENT
KEY
UNIT
KEY
TORQUE
Squar
e
Drive
For
ce
Torque Settings/Reading = Force x Distance
Torque Wrench Square Drive Distance = A
Set Torque = Fastener Torque
Set Torque =
x A
Fastener Torque
Torque Wrench Square Drive Distance = A
Fastener
Distance = B
A + B
90˚
90˚
Fastener
Distance = B
Set Torque =
x A
Fastener Torque
Torque Wrench Square Drive Distance = A
For Angles Less Than 15 Degrees
Set Torque = Fastener Torque (approximately)
DO NOT EXCEED 15 DEGREES
A + B
15˚
15˚
100%
30%
5%
REPLACE BATTERY
BATTERY
CONDITION
AUDIBLE
ALERT
TORQUE AND/OR
ANGLE DISPLAY
DECREMENT
KEY
ON/OFF
KEY
BAR
GRAPH
TORQUE
UNITS
INCREMENT
KEY
UNIT
KEY
TORQUE
Squar
e
Drive
For
ce
Torque Settings/Reading = Force x Distance
Torque Wrench Square Drive Distance = A
Set Torque = Fastener Torque
Set Torque =
x A
Fastener Torque
Torque Wrench Square Drive Distance = A
Fastener
Distance = B
A + B
90˚
90˚
Fastener
Distance = B
Set Torque =
x A
Fastener Torque
Torque Wrench Square Drive Distance = A
For Angles Less Than 15 Degrees
Set Torque = Fastener Torque (approximately)
DO NOT EXCEED 15 DEGREES
A + B
15˚
15˚