IMPORTANT: This device is used for inspecting the movement of rotating and
vibrating objects. It may only be used in accordance with these instructions. The
device must not be opened. Modications to the device are not permitted. The
manufacturer shall not be liable for damage resulting from incorrect use or use
contrary to the intended use. Warranty claims will also be invalidated in this event.
– 1 –
1.0 INTRODUCTION
The Check-Line QB-LED is a hand-held, battery-powered stroboscope featuring
extremely bright LEDs for the highest light output in its class. Designed for machinery
observation, visual inspection and motion analysis, its robust design is suitable for use in
the toughest industrial environments.
1.1 Scope of Delivery
Check that you have received all of the following:
• Stroboscope: QB-LED design (40 LEDs, no laser)
or QBS-LED design (118 LEDs, with laser)
• Operating instructions
• Calibration certicate
• Charger with connector set
• Trigger plug
• Reective tapes (QBS-LED only)
• Handle
• Foam-tted, plastic carrying case
Note: This device is suitable for use in residential, commercial and industrial area.
1.2 Precautions when using
Risk of injury! Laser class 2: The stroboscope QBS-LED is tted with a
class 2 laser. This is located at the front of the device. The laser beam can damage
eyes. For this reason, do not stare directly at the laser beam and never direct it at
people or animals. Wavelength: 650 nm, output: 1 mW.
Risk of Injury! Flashing lights can cause retina damage: The
stroboscope QB-LED and QBS-LED versions are tted with 40/118 LEDs
respectively. These produce potentially dangerous optical radiation, which can
cause retina damage. Do not stare directly at the light and never direct it at people
or animals.
Risk of injury! Moving objects appear still or in slow motion in stroboscopic
light. Do not touch such objects under any circumstance.
Risk of injury! The device may not be used in potentially explosive areas.
Risk of injury! Stroboscopic light can trigger epileptic seizures in
persons at risk.
– 2 –
2.0 OVERVIEW
2.1 Connections, controls and settings (QB-LED QBS-LED)
(A) CHARGE = charging socket
(B) INPUT = input for external trigger /24 V power supply for sensors
(C) Display
(D) Rotary/push knob
(E) Selector switch: OFF, FREQUENCY, BRIGHT, MENU, LASER*
*NOTE: LASER Mode only available on QBS-LED model.
OFF
FREQUENCY
BRIGHT
INPUT
(B)
(C)
MENU
LASE R
(E)
(A)
Reset 5 sec.CHARGE
Fig.1 - Stroboscope QB-LED and QBS-LED
– 3 –
(D)
PRESS: FLASH ON /OFF
2.2 Display
(1) Brightness in μs and/or degrees (BRIGHT)
(2) Delay in ms and/or degrees (DELAY)
(3) Phase shift (PHASE)
(4) Unit of frequency in rpm, Hz and/or FPM
(5) Value
(6) Multiplier (MULT.)
(7) Trigger divider (DIV.)
(8) Slow motion (SLOW)
(9) Trigger signal edge (TRIG.)
(10) Internal/external trigger (INT / EXT)
(11) Store / read parameters (MEMORY IN / MEMORY OUT)
(12) Pro mode (P)
(13) Battery status – full, half full or low
(1)
(2)(3)
(4)
(5)
(6) (7)
(8) (9)
(10) (11)
(12) (13)
Fig. 2 - Display
– 4 –
3.0 SETUP
(EN 60130-9)
5
3.1 Connectors (see Fig. 1)
No.MarkingTermDescription
(A)CHARGECharging SocketDevice is charged using a charger
(B)INPUTInput socketInput for external tripper/24 V
3.2 Set-up steps
Please follow the steps below when setting up the device:
1. Charge the device by plugginh the charger into the CHARGE (A) socket to the
rear of the device (see Fig. 1)
2. Direct the device at a moving object and switch it on. Turn the selector switch (E)
one notch to the left to “FREQUENCY.”
The device will start to ash immediately. For this reason, do not
direct it at people or animals.
NOTE: The device will ash at the frequency that was set most recently. The display
shows the selected ash frequency in the unit that was set most recently (rpm, Hz or
FPM). If the ash frequency coincides with the frequency of the motion, a static
image appears.
3.3 Connect the trigger
power supply
The device has the option of being externally triggered.
DO NOT trigger the device with signals in excess or 300,000 FPM.
Material damage may occur.
NOTE: Use only original material from the manufacturer to connect the trigger signal.
The trigger input is isolated and is suitable for PNP
and NPN signals. A trigger plug suitable for this
input socket is included with the device.
1. Plug the trigger plug into the input socket
2 nc
3 GND
1
INPUT (B).
2. Screw in trigger plug.
3. Assign the connection socket as per Fig. 3.
NOTE: The device must be manually switched
between external and internal trigger signals (see
How select an internal/external trigger, page 9).
5 -Trigger
Fig. 3 - Assignment of the
connection socket.
– 5 –
3
4.0 OPERATION
Note: This device comes in two versions.
• QB-LED (40 LEDs, no laser)
• QBS-LED (118 LEDs, with laser)
Both versions are available in Standard and Pro modes (see section 4.3, Standard mode
and section 4.4, Pro mode).
4.1 Controls
No. TermDescription
(DRotary/Push Knob
(E)Selector SwitchChoose between OFF, FREQUENCY, BRIGHT, MENU and LASER
4.2 Display
Note: Preset values are retained in each mode (Standard or Pro mode)
Position of
the selector
switch (E)
OFF—
FREQUENCYFPM
BRIGHTBRIGHT deg•
MENUPHASE deg•••
INT/EXT••••
Following functions are only available in the PRO mode
1/min/Hz/FPM•••
MULT.••
BRIGHT deg/µs•••
DELAY ms•••
DIV••
SLOW••
TRIG.••
MEM IN•••
MEM OUT•••
• Tur n the knob to select the value and push to conrm. The
adjustment increment depends upon the rotational speed.
• Turning the knob while simultaneously pushing it, effects the
adjustment increment in steps of 100.
• The ash can be turned off by pushing the knob once and
turned on again by pushing the knob once again.
(QBS-LED version) by turning the switch to the desired position
OVERVIEW OF ADJUSTABLE PARAMETERS
DisplayAvailable withFunctions of the rotary/push knob (D)
Internal
trigger
External
trigger
Set valueSelect parameter
– 6 –
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