Model No.
STW298
Max. Operation Range (N-m)
200
Square Drive (inches)
1/2
Alarm Setting Range (N-m)
10~200
Length (mm)
500
Accuracy *1
CN
CW±3% CCW±4%
Pre-setting No.
1 set
Bright LED
12 LED / 4Red + 8Green
Operation Mode
Peak-hold/Track
Unit Selection
N-m, in-lb, ft-lb,kg-cm
Head Type
Round Head Ratchet
Gear Teeth
52
Button
4
Battery
AA X 2
Battery Life *2
(Continuous operation)
110 hrs.
Battery Life *2
(Standby)
1 year
Operating Temperature
-10°C~60°C
Storage Temperature
-20°C~70°C
Humidity
up to 90% non-condensing
Drop Test
1m
Vibration Test *3
10G
Life time *4
10000 cycle
Environmental test *5
Pass
Electromagnetic
compatibility test *6
Pass
3.1
BEFORE USING THE WRENCH
3.1.1 Remove the battery cover.
3.1.2 Insert two AA batteries matching the -/+ polarities of the battery
to the battery compartment.
3.1.3 Put on the battery cover, aligning the arrows on the cover and
end of wrench as shown in fig.1, turn the cover clockwise to
align the second arrow.
3. OPERATION
* See Note:
1.
The accuracy of the readout is guaranteed from 20% to 100% of
maximum range + /- 1 increment. The torque accuracy is a
typical value. Calibration point is at the middle line of black circle
area on the rubber grip. The torque wrench must be calibrated
annually.
2. use two AA batteries.
3.
Horizontal and vertical test.
4.
One cycle means swing the torque wrench from 0 N-m to maximum
range and back to 0 N-m.
5.
Environmental test:
a. Dry heat
b. Cold
c. Damp heat
d. Change of temperature
e. Impact (shock)
f. Vibration
g. Drop
6.
Electromagnetic compatibility test:
a. Electrostatic discharge immunity (ESD)
b. Radiated susceptibility
c. Radiated emission
2.3
SPECIFICATIONS
3.5
UNIT SELECTION
Unit Selection: kg-cm
Unit Selection: ft-lb
Unit Selection: in-lb
Press
Pre-setting Unit: Nm
Press
Press
Note: The “Unit Selection” is in sequential order.
STW298 Issue No: 1 - 02/06/09
3.1.4 Press to power on the digital torque wrench.
3.1.5 Press to reset the digital torque wrench before using it.
q
WARNING!
If an external force is applied to the torque wrench
during power-on/reset or wake up period, an initial torque offset
will be recorded in the memory.
3.2
Activation during sleep mode
The wrench will auto sleep after 5 minutes idle for power
saving.
Press to wake up the wrench from sleep mode.
Note:
The sleep function is disabled while the unit is being calibrated
and it is set in the communication mode.
3.3
If the wrench does not function normally, press
together to reset the wrench.
3.4
W B
If the battery voltage is under 2.3 volts, the wrench will display
a battery symbol and then turn off after a short period.
LECTION
fig.1
