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INTROdUcTION
The Computorq 3 Electronic Torque Wrench digitally
displays fastener torque specification settings, torque
readings and peak hold measurements.
DISPLAY - The wrench features a custom LCD display,
use keypad to select torque units, readout in ft.lb.,
in.Ib., Nm, and kg.cm. Display also includes a 10
segment bar graph.
SETTING - Determine torque specification for fastener.
Next, use the UP or DOWN arrow keys to scroll to the
desired target torque value. NOTE: The target torque
value is adjustable between 10% and 100% of full
scale. The scrolling display rolls over at both ends for
quick and convenient adjustment of setting.
TRACKING - While torque is applied, the display
switches from preset value to actual applied value
with a 0.20 second update rate.
AUDIBLE TONES AND LED'S - When the applied torque
value equals -10% of the target torque value, a
YELLOW LED illuminates. When the target torque value
is reached, the wrench outputs a 0.50 (1/2) second
audible tone and the GREEN LED illuminates. At +10%
of target torque the RED LED illuminates.
PEAK HOLD - When torque is released the display
holds and flashes the peak torque reading for 10
seconds or until next torque is applied.
OVERLOAD - If the wrench is used beyond 100% of full
scale the audible tone will pulse rapidly to warn the
operator to stop. At 125% of full scale the display will
lock and read "- - - -".
ZERO - Wrench will automatically perform self
calibration check and re-zero when powered ON. When
powered ON, the wrench can be re-zeroed at any time
by depressing the ON/ZERO key.
SETUP MEMORY - When powered ON, the wrench
returns to the last unit and torque setting selected.
BATTERY - The Computorq 3 uses two (2) standard
replaceable "CR123" lithium cells which provide more
than 80 hours of continuous operation. The current
battery level can be determined by viewing the battery
indicator icon in the upper left corner of the LCD
display. A flashing 'bAtt" display means the wrench is
no longer accurate and the battery must be replaced
before continuing usage of wrench.
POWER ON - Depress and hold the ON/ZERO key until
display illuminates.
POWER OFF - Depress the ON/ZERO key and hold for
5 seconds.
AUTO POWER OFF - Auto power OFF will occur after
2 minutes of nonusage to conserve battery power.
The yellow LED illuminates when the applied torque value equals -10% of the target
torque value.
The green LED illuminates when the target torque value is reached and the wrench
outputs a 0,50 (1/2) second audible tone.
The red LED illuminates at +10% of target torque, indicating fastener was overtorqued.
Rapid "alarm" buzzer sounds.
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