Weller WTT 5 Manual De Uso página 4

English
1. Applications
Recommended for all hand screwdrivers, wrenches, or
power tools.
2. Features
1. Torque range: 0,25- 5 Nm
2. Accuracy: ± 2 cNm
- Built-in transducer to measure on joint simulator.
- Three units of torque measurements: (Nm, Kgf.cm, lbf.in).
- Manual and auto reset functions to clear displayed values.
- Certificate of calibration.
- Battery powered (9 V) or AC adapter cord (option at extra
cost). 9 V batteries provide 20 hours of continuous
operation.
- Automatic shut down.
3. Description
1. Mounting holes
2. Display 4 digit / 8 lines
3. "ON/OFF" key: press for 3 seconds to switch tester
ON or OFF
4. "CLEAR" key: press to reset the displayed value
5. "UNIT" key: press to select the unit of torque
measurements
6. Internal transducer
4. Mounting
It is strongly recommended securing the tester through slots
"1" to a workbench before operating. Immobilizing the tester
when checking torque values over 1 Nm is critical for the
safety the operator as well as for the accuracy of torque
measurements during operation.
5. Joint simulator
The Joint Simulator (JS), which can be supplied on request,
consists of a screw compressing a series of washers.
The way the washers are mounted can simulate soft or hard
joint. The screw comes with a ¼" hex male head for proper
fit to any ¼" hex female screwdriver drive. Hardened thread
components increase accuracy and life. Since a joint
simulator cannot duplicate actual joints, the torque values
3
displayed on the miniK may vary from the actual torque that
a screwdriver will apply to the actual assembly. When critical
applications are involved, we recommend to verify the torque
output of the power tool being used on the actual assembly
through an external transducer.
NB. we recommend to grease the JS each 1000 cycles.
6. Starting and operating the tester
1. Immobilize the tester when checking torque values over
1 Nm. This is critical for the safety the operator as well as
for the accuracy of torque measurements during
operation.
2. Switch the tester on pushing the "ON/OFF"(3) key. If the
tester does not switch on or the display is not clear
enough, please replace the battery. When using the AC
adapter, this will disable the battery. The battery is not
rechargeable. The display will show the main screen.
3. Insert the joint simulator into its 13 mm hex seat and make
sure the screw is in its upper position (if not run the driver
anticlockwise to unscrew it). The tester is ready for a
measuring cycle.
4. Press the "ON/OFF" (3) key for 3 seconds to switch the
tester off. The Tester features a built-in auto shut off mode
function to save power when not in use. If there is no
activity for 3 minutes, such as key press or no torque
input, the tester will shut down. To restore power press the
"ON/OFF" (3) key for 3 seconds
NB. Upon starting, always check and clear the zero
(see the menu).
7. Selecting the unit
MEASURING UNIT: Nm, kgf.cm and lbf. in
To change unit: press UNIT (5) key until the desired unit has
been selected. Each unit is indicated by a LED of different
colour, red for Nm, green for kgf.cm and yellow for lbf.in.
8. Selecting Auto Reset or Manual Reset
The flow chart below shows how to select Auto Reset ("ON")
or Manual Reset ("OFF").
When you select Auto Reset "ON", any new measure will
replace the previous one without resetting the value to zero.
When you select Manual Reset "OFF", you need to push
"CLEAR" (4) to remove readings from the display and reset
all values to zero.