19
3
Design and Function
3 . Function/Signal Levels
• The torque wrench with built-in angle gauge has four
signal levels combining visual, audible and tactile
signals, which correspond to the attainment of set
values.
• The visible signals appear below the matted ring on
the handle, the audible signals are generated by a
buzzer in the housing and the tactile signals are cre-
ated by a vibration motor in the handle.
• The torque wrench with built-in angle gauge has two
operating modes: “Torque” and “Angle gauge” (Nm/°).
• A single flashing yellow light indicates the point when
joint torque is reached, and angle measurement
starts.
• The first signal level, with its yellow flashing light,
audible signal and low-frequency vibration starts
when the applied torque and/or the applied rotation
angle reaches 80% of the target value range. When
the first signal level is reached, you should reduce the
approach speed and pay increased attention to the
force that you are using, as well as the display and
the signals of the torque wrench with built-in angle
gauge. The lower the target value, the faster you will
reach the first signal level.
• The second signal level, with its green flashing lights,
audible signal and medium-frequency vibration, indi-
cates that the applied torque and/or the applied
rotation angle is within the target value range. If the
second signal level is reached, the screwing process
must be stopped in this range. The lower the target
value, the faster you will reach the second signal
level.
• The third signal level, with its red flashing light, audible
signal and high-frequency vibration, indicates that
the applied torque and/or the applied rotation angle
exceed the target value range. If the third signal level
is reached, the applied torque and/or the applied
rotation angle is too high. Stop the screwing process.
Proceed according to the instructions for such screw-
ing incidents: for example, loosen the screw and
tighten it again, or replace it with a new screw.
• The fourth signal level, with its continuous red light,
continuous audible signal and continuous vibration,
indicates that the applied torque exceeds the maxi-
mum permissible torque range of the torque wrench
with built-in angle gauge. If you reach the fourth signal
level, you must interrupt the screwing process imme-
diately. Non-compliance can damage or destroy the
torque wrench with built-in angle gauge.
• If no further torque or rotation angle is applied after
operation, the maximum value for this process will be
displayed on the display alternating with a O.K. - or
N.O.K. - message.
• The torque wrench with built-in angle gauge can be
programmed to operate in a right-handed (+) or left-
handed (-) direction of rotation.
NOTE!
In “torque wrench” mode, the screwing
process is switched off after 2 seconds, pro-
vided that no torque is applied during this time.
In “ rotation angle” mode, the screwing process
is switched off after 4 seconds, provided that no
rotation angle is applied during this time.
NOTE!
When the screwing process is stopped,
the relevant final value (torque /rotation angle) is
displayed alternating with the O.K. or N.O.K.
message.
The next screwing process can only performed
after confirming the screwing process using .
• The orientation of the display can be rotated for easy
reading by pressing a button, regardless of the direc-
tion of operation or handling.
• When the torque wrench with built-in angle gauge
is not in use, the wrench will switch itself off after
5 minutes.
Signals Table:
Signal levels
Torque
Rotation
angle
Level 1 (threshold value)
Yellow flashing light
audible signal and
low-frequency vibration
v
v
Level 2 (within target
value range)
green flashing light,
audible signal and
medium-frequency vibra-
tion
v
v
Level 3 (above target
value range)
red flashing light,
audible signal and
high-frequency vibration
v
v
Level 4 (above maximum
torque)
continuous red light
continuous audible sig-
nal and
continuous vibration
v
v
Single flashing yellow
light
when joint torque is
reached =
Start of angle measure-
ment
v
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