Operation Cautions
A. The Sensor and Meter are a calibrated set. Always
assure the Sensor and Meter serial numbers match.
Caution: using a mismatched sensor and meter will
result in inaccurate measurements.
The serial number is found on the front and back of the
Meter and next to the main label on the Sensor.
B. Be careful not to over stress the cable. Frequent tight
bending of the cable, less than 2 inch radius, may cause
it to fail.
C. Do not hang the meter or sensor from the cable.
D. Keep the sensor away from magnets and strong
magnetic fields. The sensor operates by sensing a
magnetic media within the sensor.
E. Residual magnetism in steel parts can result in a sensor
zero offset.
Note: Ensure the unit reads zero (0) when no load is
applied. If necessary re-zero the unit prior to
measurement.
Offsets of more than 10Lb-Ft (14Nm) are not unusual
when contacting magnetic steel bolts or wrenches. To
assure accurate measurements re-zero the unit without
load and asure a zero value prior to each measurement.
F. When changing torque direction between clockwise and
counter clockwise measurements it is recommended to
make one pre-load torque to the intended target value in
the new direction prior to measurement.
G. The sensor is intended for low RPM hand turning
applications.
H. Hold the sensor housing firmly in hand. Do not clamp or
load the sensor housing. Apply torque in a steadily
increasing manner in the desired direction until the
intended value is reached.
Operation Procedures
Continuous Track Mode
1) Plug sensor into mating socket on right side of meter. The
meter will display “CAL” as part of the normal power-up
calibration sequence.
2) Attach ratchet or flex handle and socket or socket
adapters to sensor.
3) Press the red ON/OFF/RESET button to power-up the
meter.
4) Check display for correct torque units (Lb-Ft or Nm). See
“Changing Units” below for instructions.
5) Place the sensor on the nut or bolt and with no torque
applied press the center red ON/OFF/RESET button to
re-zero the display.
6) For successive measurements Re-zero the unit by
pressing the center red ON/OFF/RESET button before
each measurement.
7) To power the unit off press and hold the center red
ON/OFF/RESET button for approximately 3 seconds.
8) The mode selections will be stored at power off.
Note: Offsets of more than 10 Lb-Ft (14 Nm) can
occur when contacting magnetic steel bolts or
wrenches. To assure accurate measurements Re-zero
the unit without load and assure a Zero value prior to
each measurement.
Peak Mode
The meter can capture and hold the maximum torque readings
displayed. This is especially useful when it’s difficult to hold the
wrench steady while reading the display. The steps to use this
function are:
1) Follow steps 1 through 5 from the CONTINUOUS TRACK
MODE instructions to set up the Sensor System.
2) Enter the PEAK mode by pressing and holding the PEAK
button until the word PEAK appears in the display
(approx. 1 second)
3) Assure no turning load is applied to the sensor and
momentarily press the center red ON/OFF/RESET button
to clear the last Peak value stored. Press a second time
in order to reset to zero.
Note: In PEAK mode a single press of the center red
ON/OFF/RESET button clears the last peak value – a
double press clears and resets the value to zero.
4)
The sensor is ready for use. As torque is applied as an
increasing force, the live torque value will be displayed.
As torque is released, the meter displays the maximum
torque achieved.
5) Clear the stored peak value by momentarily pressing the
center red ON/OFF/RESET button; then the unit is ready
to capture the next PEAK reading.
6) To Re-Zero in PEAK Mode press the center red
ON/OFF/RESET button twice in rapid succession.
7) To exit PEAK mode and return to CONTINUOUS mode
live readings, press and hold the PEAK button until the
word PEAK no longer appears in the display.
Target Mode
This audible alarm function permits the user to tighten a fastener
to a preset value without having to watch the meter display. This
function can be used in conjunction with the PEAK or
CONTINOUS TRACK Mode.
1) Follow steps 1 through 5 from the CONTINUOUS TRACK
MODE instructions to set up the Sensor System.
2) Enter the TARGET mode by pressing and holding the
TARGET button until the word TARGET appears in the
display (approx. 1 second).
3) Momentarily press either the up arrow (r) or down arrow
(s) to display the current TARGET setting.
4) Adjust the TARGET value by pressing either (r) or (s)
until the desired torque value is displayed. The values
may be set from 15 to 111Lb-Ft or 15 to 150 Nm.
5) As load is applied the alarm will begin to beep slowly from
when the torque reaches 50% of the preset TARGET
value. The beep becomes faster as the applied torque
approaches the TARGET setting and becomes
continuous when torque is within +/-5% of the set value.
An error alarm will sound when TARGET torque is
exceeded by more than 5%. The alarm will briefly
continue to sound after releasing the force from the
sensor.
6) To exit TARGET mode and disable the alarm, press and
hold the TARGET button until the word TARGET no
longer appears in the display.
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