Polar Electro 7614-0020 User manual

DEAR USER
Thank you for purchasing this mini digital torque
wrench. This manual will help you to use the many
features of your new digital torque wrench.
Before operating the torque wrench, please read
this manual completely, and keep it nearby for
future reference.
INSTRUCTION MANUAL
MODEL
7614-0020
7638-0085
PRODUCT TYPE
DIGITAL TORQUE MINI WRENCH
MAIN FEATURES
■Digital torque value readout.
■+/- 3% for torque accuracy.
■CW and CCW operation.
■Peak and/or hold track mode selectable.
■Buzzer and LED indicator for the pre-settable
target torques.
■Engineering units (Nm, ft-lb, in-lb, kg-cm)
selectable.
■Auto sleep after about 5 minutes idle.
■Rechargeable batteries are compatible.

2
NAMES AND FUNCTIONS OF PARTS
MODEL
Direction lever
LCD readout Anti-slip handle
Communication port
7614-0020
MODEL
Reversible
ratchet head
Reversible
ratchet head
Direction lever
Torque value
Torque value
Units
Peak mode
Units
Peak / Track mode
LED indicator
LED indicator
Bit holder
Ratchet driver
Buttons
Buttons
LCD readout Anti-slip handle
Calibration mark
Calibration mark
Buzzer
Battery cover
Battery cover
Communication port
7638-0085

3
SELECTION GUIDE
Torque accuracy Communication
MODEL
SQUARE
DRIVE
”
BIT END
FITTING “
MAX. OPERATION TORQUE
Nm ft-lb in-lb kg-cm
7614-0020 – 1/4 20 14.75 177 204.1
7638-0085 3/8 – 85 62.7 752 867
■3%- CW / 4%-CCW ■No
SPECIFICATIONS
MODEL
NO.
RESO-
LUTION
GEAR
TEETH
MEASURED
TORQUE
(Nm)
LENGTH
(MM)
7614-0020 0.01 – 1~20 207
7638-0085 0.1 48 4.2~85 239
ALL MODELS
Torque accuracy *1 CW: ±3% CCW: ±4%
PC connectivity No
Pre-setting no. 1 set (only 7638-0085)
Operation mode Peak Hold / Track (only 7638-0085)
Bright LED 2 LED (1 red + 1 green)
Unit selection Nm, ft-lb, in-lb, kg-cm
Head type Bits (7614-0020)
Lever type ratchet (7638-0085)
Button 2 (7614-0020) / 4 (7638-0085)
Battery *2 AAA x 1
Operating temperature -10°C ~ 60°C
Storage temperature -20°C ~ 70°C
Humidity Up to 90% non-condensing
Drop test 1 m
Vibration test *3 10 G
Life time *4 10.000 cycle
Environmental test *5 Pass
Electromagnetic
compatibility test *6 Pass
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 on the rubber grip.
For keeping the accuracy, calibrate the
wrench for a constant period time (1 year).
*2: One AAA battery (Toshiba carbon-zinc
battery)
*3: Horizontal and vertical test.
*4: One cycle means swing the torque
wrench from 0 Nm to maximum range
and back to 0 Nm.
*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

4
BEFORE USING THE WRENCH
Battery Installation
Attention
Cautions
■Remove the battery cap.
■Insert one AAA battery matching the -/+
polarities of the battery to the battery compartment.
■Replace the battery cap and fasten it tightly
according to the following figures.
If an external force is applied to the torque wrench
during power-on period, an initial torque offset
will be recorded in the memory.
During communication period (Send appears), the
auto power off function is disabled.
■Press to power on the digital torque wrench.
■Usually press to reset the digital torque
wrench before using it.
Resetting the wrench
Auto power off
If the wrench does not function normally, loosen
the battery cap then tighten it to re-start.
The wrench will auto power off after about 5
minutes idle for power saving. Press to power
on the wrench again.
MODEL
MODEL
7614-0020
7638-0085
SETUP
Adjust torque value up
Adjust torque value down
Power on/clear
Power on/clear
Unit selection/setting
Unit selection/setting
Pre.setting unit: Nm
Unit selection: in-lb
Unit selection: ft-lb
Unit selection: kg-cm
PressPress
Press
Press
UNIT SELECTION
Note:
The “Unit Selection” is cyclic.
Power on and resetting the wrench

5
■Press to power on the wrench and the max
torque value will be shown on screen.
■Swing the wrench and the current torque will be
updated on screen.
■Release wrench and the peak torque value will
be flashed on screen. The peak torque is the
maximum torque during the wrench pulling.
■P r e s s to clear current peak value or directly swing
wrench again to get another peak torque value.
■Usually press to reset wrench before any new
measurement. Notice to keep the wrench horizon-
tal and rest during reset process.
Max torque (85 Nm for example)
Update current torque
Communication
Communication
Pre.setting torque value
Increase torque value
Decrease torque value
Press
Press
SET TARGET TORQUEOPERATION
CALIBRATION
Only 7638-0085:Only 7614-0020:
Track mode
Set peak / track mode
Set peak / track mode
Peak hold mode
Communication
Communication
Long press
Press
Press
Press
(Exit)
for selection
PEAK HOLD/TRACK MODE SELECTION
Note: (Both 7614-0020 and 7638-0085)
Communication is for calibration of torque wrench.
Please contact your local dealer for information.


START
START
(Power ON)
(Power ON)
Long press
Press
Apply force
Press to restart



Release force
Show peak torque (flashing)
Press to
clear peak value
Apply torque
Press




6
(System indicate)
Setting target torque
Apply torque
Apply torque
Current torque value
(Peak hold)
Released
Flashing
Buzzer
Buzzer
Green LED
Reached 90% of target torque
Red LED
Approaching target torque
Reached 90% of target torque
Reached target torque
START
PEAK HOLD MODE OPERATION
(((((((( )))))))) ((((((( )))))))
((…((… …))…)) ((…((… …)) …))
*Note 1
*Note 2
*Note 3
Note:
1. If appears, it means the wrench is
overloaded. Overload = 110% of max. torque.
Please contact your local dealer for recalibration.
2. When 90% of the target torque is reached,
the green LED will begin to flash and the
alarm tone will beep intermittently.
3. When 99.5% of the target torque has been
reached, the alarm will change to a steady
tone and the green LED will stop flashing
and stay on. The red LED will also illuminate.
TRACK MODE OPERATION
(((((((( )))))))) ((((((( )))))))
((…((… …))…)) ((…((… …)) …))
START
*Note 1
*Note 2
*Note 3
(System initial)
Setting target torque
Current torque value
Current torque value
Green LED
Reach 90% of target torque
Red LED
Approached target torque
Buzzer
Buzzer
Reach 90% of target torque
Reach target torque
Apply torque
Note:
1. If appears, it means the wrench is
overloaded. Overload = 110% of max. torque.
Please contact your local dealer for recalibration.
2. When 90% of the target torque is reached,
the green LED will begin to flash and the
alarm tone will beep intermittently.
3. When 99.5% of the target torque has been
reached, the alarm will change to a steady
tone and the green LED will stop flashing and
stay on. The red LED will also illuminate.
Only 7638-0085: Only 7638-0085:

7
MAINTENANCE AND STORAGE
BATTERY MAINTENANCE
■When the wrench is not going to be used for an
extended period of time, remove the battery.
■Keep a spare battery on hand when going on a
long trip or to cold areas.
■Sweat, oil and water can prevent a battery’s
terminal from making electrical contact.
To avoid this, wipe both terminals before loading a
battery.
■Dispose of batteries in a designated disposal
area. Do not throw batteries into a fire.
Caution:
1. Over-torquing (110% of Max. torque range)
could cause breakage or lose of accuracy.
2. Do not shake violently or drop wrench.
3. Do not use this wrench as a hammer.
4. Do not leave this wrench in any place
exposed to excessive heat, humidity, or
direct sunlight.
5. Do not use this apparatus in water (it is not
waterproof).
6. If the wrench gets wet, wipe it with a dry
towel as soon as possible. The salt in
seawater can be especially damaging.
7. Do not use organic solvents, such as
alcohol or paint thinner when cleaning
the wrench.
8. Keep this wrench away from magnets.
9. Do not expose this wrench to dust or sand
as this could cause serious damage.
10. Do not apply excessive force to the LCD
panel.
11. Apply torque slowly and grasp the center
of the handle. Do not apply load to the
end of the handle.
12. When checking the accuracy or calibration,
please use the bit head packed inside the
blow mold case. (only 7614-0020)
Attention!
One-year periodic recalibration is necessary to maintain
accuracy. Please contact your local dealer for calibrations.

POLAR TOOLS A/S
SOLDALEN 9 . 7100 VEJLE . DENMARK . [e-mail] . WWW.POLARTOOLS.COM