Using the IZO-DM/DFM torque wrench
Apply torque slowly until audible alert is heard and vibration alert is felt
in the handle.
The display will track applied torque until torque is released.
On release the PEAK value will be displayed, flashing, for 10 seconds
or until torque is re-applied.
To STORE the PEAK reading, momentarily push the
MEMORY key
while the PEAK display is flashing.
The torque wrench will alert the user with a
1
⁄
2
-second tone and
continuous vibration at preset torque value minus tolerance percent.
Vibration stops when torque is released.
A three tone sound will indicate that the applied torque exceeds the
preset value plus tolerance percent.
Example
A torque wrench is preset to 80 Nm.
If the tolerance is set to ± 10 % then the lower
alert occurs at 72 Nm and the over torque alert
will occur at 88 Nm.
A rapidly pulsing tone indicates that the
torque wrench full-scale capacity is exceeded
and the user must stop increasing torque.
At 125 % of F.S. the display locks up and shows
“----” indicating overload of the torque wrench.
Self-test
With no torque applied, push
ON/ZERO key
to initiate self-test. If the torque wrench has been
damaged, the display will read “Err” indicating
that repair is necessary.
Preset and Tolerance Range
*IZO-DM/DFM 135 = 5 %
1
Battery
Indicator
2
Tolerance
setup flag
3
Torque
reading
4
Units of
measure
5
CCW
indicator
6
Data in
memory
7
RS232 serial
output jack
8
ON/ZERO
enter key
9
Units select
key
10
Increment
scroll key
11
Decrement
scroll key
12
Memory store
recall/clear key
13
Print RS232
setup key
14
Audible Alert
7
6
Nm
%
Nm
%
Nm
%
Nm
%
+ %
PRESET
– %
The BAHCO IZO-DM/DFM torque wrench is a robust replacement for the
traditional “click” wrench, providing better accuracy, easy preset
adjustments, tolerance adjustments and improved user friendly design.
Power On
Push
“ON/ZERO” key – the torque wrench will
self-test, show the torque preset value for two seconds
and then show “0.0”.
Units Select
Push
“UNITS” key – to select “Nm”, “ft lb” or “in lb”.
Preset Adjust
While holding down the
(UP) key momentarily push
ON/ZERO key
until display flashes preset value.
Use
(UP) or
(DOWN) keys to change the preset value.
(Display will roll-over at each end). Torque preset is adjustable between
10 % and 100 % of torque wrench full-scale.
Push
ON/ZERO key to enter new preset value and you will
automatically return to measurement mode.
Tolerance Adjust
While holding down the
(DOWN) key momentarily push
ON/ZERO
key until display flashes tolerance percent.
Use
(UP) or
(DOWN) keys to change the tolerance value between 1 %
and 16 %. Push
ON/ZERO key to enter new tolerance value and you will
automatically return to measurement mode.
BAHCO IZO-DM/DFM USER GUIDE
Nm
14
1
2
3
4
8
10
9
11
6
5
7
12
13
GB
MAX TORQUE 125 %
MAX PRESET 100 %
TOL %
PRESET VALUE
TOLERANCE – %
*MIN PRESET 10 %
ZERO TORQUE
Wrench shutdown
Over capacity alert rapid
pulsing tone
Over torque alert triple tone
Preset alert single tone
and vibrations
Zero torque
OK-area
applied
torque
MS7054_UserGuide_IZO-DM.qxd 26.02.2004 16:34 Uhr Seite 6
