CHECK•LINE
®
BY ELECTROMATIC
QB-LED & QBS-LED
STROBOSCOPES
Operating Manual
TABLE OF CONTENTS
1.0 Introduction ………………………………………………………..… ................... 02
1.1 Scope of delivery
1.2 Precautions when using
2.0 Overview ................................................................................................................. 03
2.1 Connections, controls and settings
2.2 Display
3.0 Set-Up ................................................................................................................. 05
3.1 Connections
3.2 Set-up steps
3.3 Connect the trigger
4.0 Operation ................................................................................................................. 06
4.1 Controls
4.2 Display
4.3 Standard mode
4.4 Pro mode
4.5 QBS-LED
4.6 Operating modes
5.0 Determining An Object’s Actual Rotational Speeds ............................................ 15
6.0 Technical Data and Accessories ............................................................................. 17
7.0 Faactory Reset ....................................................................................................... 18
8.0 Warranty ................................................................................................................. 19
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 –
– 2 –
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.
– 3 –
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
MENU
LASER
PRESS: FLASH ON/OFF
Reset 5 sec.CHARGE
INPUT
(A)
(E)
(D)
(B)
(C)
Fig.1 - Stroboscope QB-LED and QBS-LED
– 4 –
(1)
(2) (3)
(4)
(5)
(6) (7)
(8) (9)
(10) (11)
(12) (13)
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
Fig. 2 - Display
– 5 –
3.0 SETUP
3.1 Connectors (see Fig. 1)
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
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
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).
(EN 60130-9)
1
5
3
2 nc
3 GND
5 -Trigger
Fig. 3 - Assignment of the
connection socket.
No. Marking Term Description
(A) CHARGE Charging Socket Device is charged using a charger
(B) INPUT Input socket Input for external tripper/24 V
power supply
– 6 –
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. Term Description
(D Rotary/Push Knob
• Turn 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.
(E) Selector Switch Choose between OFF, FREQUENCY, BRIGHT, MENU and LASER
(QBS-LED version) by turning the switch to the desired position
4.2 Display
Note: Preset values are retained in each mode (Standard or Pro mode)
OVERVIEW OF ADJUSTABLE PARAMETERS
Position of
the selector
switch (E)
Display Available with Functions of the rotary/push knob (D)
Internal
trigger
External
trigger
Set value Select parameter
OFF —
FREQUENCY FPM
BRIGHT BRIGHT deg •
MENU PHASE 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 • • •
(4) FREQUENCY FPM Frequency selection; FPM: ashes per
minute
- Turning the knob while pushing
it simultaneously, the adjustment
increment is effected 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.
How to select FREQUENCY
1. Turn the selector switch (E) to the FREQUENCY position. All settings, will appear in the display for a few
seconds, followed by S
2. Select the desired frequency by turning the rotary/push knob (D).
– 7 –
4.3 Standard Mode
NOTE: Not all of the setting shown in Fig 2 are available in Standard Mode.
No. Position of the
Selector Switch
(E)
Adjustable
Parameters
Description
(4) OFF — Device is switched off
(1) BRIGHT BRIGHT deg Selection of brightness
(in 1/1,000 degrees)
Brightness (BRIGHT in deg)
Flash duration: This function allows the ash duration to be adjusted, which inuences the brightness
and focus of the object being viewed. In the Standard mode, this setting can only be made in relative form
(degrees), whereas the Pro mode also features the additional setting of measuring brightness in absolute
form (microseconds).
– 8 –
No. Position of the
Selector Switch
(E)
Adjustable
Parameters
Description Display
(3) MENU PHASE deg:
0…359
Delay setting between the trigger signal
and ash (in degrees relative to the
frequency
Phase sift (PHASE in deg)
Phase shift setting (in degrees, relative to the frequency) between the trigger signal and ash. This value
allows a xed angle to be set between the trigger signal and ash.
• Example without external connection: The viewing position can be extremely precisely adjusted without
changing the ash frequency. You can shift the viewing position within a movement cycle.
• Example with external connection: The external trigger signal is triggered before the desired observation
point (= ash position of the stroboscope). This would mean that the connected stroboscope would
regularly ash too early. The PHASE deg setting adjusts the delay, altering the ash position of the
stroboscope by a set angle. This setting is not affected by the current rotational speed, which means that
the stroboscope will ash at the desired position even during rotational speed uctuations or during the
start-up period.
How to select in the MENU
1. Turn the selector switch (E) to the MENU position.
2. Select which parameter (e.g. PHASE deg) you want to change by turning the rotary/push knob (D).
3. Push the rotary/push knob (D) to conrm a parameter selection. The number shown in the display will
begin to ash.
4. Select the desired value by turning the rotary/push knob (D.)
5. Conrm and exit selection by pushing the rotary/push knob (D).
The setting is now active.
NOTE: The display and adjustable value can be changed by turning the rotary/push knob (D).
– 9 –
No. Position of the
Selector Switch
(E)
Adjustable
Parameters
Description Display
(10) MENU INT /EXT Internal /external trigger
How to select an internal / external trigger
1. Turn the selector switch (E) to the MENU position.
2. Select the INT / EXT parameter by turning the rotary/push knob (D).
3. Push the rotary/push knob (D) to conrm the parameter selection. The display will now show the
selection of INT and EXT parameters, the active setting will begin ashing.
4. Select the desired parameter by turning the rotary/push knob (D).
5. Conrm and exit selection by pushing the rotary/push knob (D).
The setting is now active.
– 10 –
4.4 Pro Mode
Follow the steps below to access the pro mode:
1. Turn the selector switch (E) from OFF to the required position while
simultaneously holding the rotary/push knob (D) until the PRO notication
appears in the display.
2. When the Pro mode is activated, a P appears in the bottom right area of the display
NOTE: If you have selected settings in Pro Mode and then switch the device off, these
settings will ONLY be active when the device is switch back on if pro mode is activated.
Otherwise, only the standard mode settings will be active.
No. Position of the
Selector Switch
(E)
Adjustable
Parameters
Description Display
(4) FREQUENCY FPM Description: Frequency selection; FPM:
ashes per minute
- Turning the knob while pushing
it simultaneously, the adjustment
increment is effected 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.
(1) BRIGHT BRIGHT deg Selection of brightness
(in 1/1,000 degrees)
(3) MENU PHASE deg:
0…359
Delay setting between the trigger signal
and ash (in degrees relative to the
frequency
(10) MENU INT /EXT Internal /external trigger
NOTE: See also section 4.3 Standard Mode for examples and explanation regarding the above mentioned
display messages.
–11–
(6) MENU MULT:
x1, x2,
x3…/ +1,
+2, +3, …
respectively.
The selected
ash
frequency is
immediately
multiplied/
divided by
1, 2, 3 …
Multiplier:
This function is only possible when the
internal trigger is selected
Multiplier (MULT)
At this function the adjusted frequency can be divided or multiplied with integer values to check the
harmonic multiple images (see section XX Determining the actual rotational speed of an object).
No. Position of the
Selector Switch
(E)
Adjustable
Parameters
Description Display
(4) MENU rpm / Hz /
FPM
Unit of frequency selection:
- rpm: unit for measuring rotational
speed
- Hz: ash frequency per second
- FPM: ashes per minute
(1) MENU BRIGHT:
PULSE deg
PULSE µs
Selection of brightness unit (in degrees
or micro-seconds)
Brightness (BRIGHT in deg / BRIGHT in µs
At this function the adjusted frequency can be divided or multiplied with integer values to check the
harmonic multiple images (see section 5.0, Determining the actual rotational speed of an object).
(2) MENU DELAY ms:
0.0…2.000
Delay time setting (in milliseconds)
between the trigger signal and ash.
–12–
No. Position of the
Selector Switch
(E)
Adjustable
Parameters
Description Display
(7) MENU DIV:
1…2550
Pulse divider, max value 255.
This function is only possible when the
external trigger is selected
Pulse divider (DIV)
The pulse divider can be used to set a value x, by which the external trigger signal is then divided.
Example: when scanning a cog wheel, an external trigger (e.g. rotational speed sensor) sends our a signal
for each cog scanned. With a DIV value of 10, it will only ash once every 10 signals.
(8) MENU SLOW:
0…600
The ash frequency exceeds the trigger
frequency by the value selected.
This function is only possible when the
external trigger is selected
SLOW (slow motion)
The SLOW function allows the viewer to view movement in slow motion. The speed of the slow motion
depends on the ash frequency and corresponds to the value selected.
(10) MENU TRIG:
0 / 1
Selection of trigger signal edge
(increasing 0, decreasing 1.
This function is only possible when the
external trigger is selected
(11) MENU MEM IN:
1 … 5
Selected settings can be backed up in
ve separate storage locations.
(11) MENU MEM OUT:
1 … 5
It is possible to read backed-up
settings.
–13 –
No. Position of the
Selector Switch
(E)
Adjustable
Parameters
Description Display
(11) MENU MEM OUT:
1 … 5
It is possible to read backed-up
settings.
(11) MENU MEM OUT:
1 … 5
It is possible to read backed-up
settings.
(11) MENU MEM OUT:
1 … 5
It is possible to read backed-up
settings.
4.5 Stroboscope QBS-LED
NOTE: The model QBS-LED features both a higher number of LEDs (118) as well as a
Laser for automatic rotational speed measurement and “Auto-Synching” with target.
Risk of injury. The model QBS-LED is tted with a class 2 laser. The laser beam
can damage eyes. For this reason, do not stare directly at the laser beam and
never direct it a people or animals.
To use the laser, you must rst afx a reective marking onto the object to be measured.
Direct the stroboscope at the rotation object. The laser will recognize the marking and
measure the rotations.
–14 –
4.6 Operating Modes
The following operating modes may be displayed:
No. Position of the
Selector Switch
(E)
Adjustable
Parameters
Description Display
Battery Status Fully charged.
Battery Status Half charged.
Battery Status Low (symbol will ash).
LASER / EXT /
SLOW
The trigger frequency is below the
measurement range
LASER / EXT /
SLOW
The trigger frequency is above the
measurement range
NOTE: The symbol of a parameter that differs from the factory settings will ash
during operation. The stroboscope will be automatically switched off after 15 minutes of
running on battery power.
–15 –
5.0 DETERMINING THE ROTATIONAL SPEED OF OBJECTS
The stroboscope can be used as a digital revolution indicator to determine an object’s
actual rotational speed and/or the frequency of cyclical movements. The stroboscope
does this by visually “freezing” the object’s movement and then taking a reading of the
rotational speed or frequency from the LCD display. As is the case with all stroboscopes,
it is vital to ensure that this “frozen” image is not a harmonic of the object’s actual
rotational speed.
Useful information:
• It’s helpful to have a rough idea of the object’s rotational speed beforehand.
• Regular shaped objects, e.g. a fan with several vanes or a motor shaft, must be afxed
with an identication marking (using color or a reective strip etc.) in order to be able
to differentiate its orientation of movement.
• A still image always appears exactly at integer division of the speed of the object’s
actual rotational speed!
Example 1 (marking required)
e example shows the importance of using identication markings. Say you
want to determine the actual rotational speed of this ventilator.
e only thing you know is that its rotational speed is less than 3,500 rpm. e
following “frozen” images will appear if you reduce the ashing rate based on
3,500 FPM (ashes per minute):
What is the actual rotational speed of the fan? Images 1, 3, 5, 6 and 8 correspond to the
original one, which means the rotational speed could be 3300, 1650, 1100, 825 or 550 rpm.
– 16 –
Which is correct?
Example 2 (no marking required)
To determine the fan’s actual rotational speed, one of the ventilator vanes is
attached with a marking and the test is repeated.
is example shows how the actual rotational speed of an object can be determined
without using an orientation marking. is is only possible for suitably shaped objects.
Let’s assume the only thing we know about this cam is that it rotates at
less than 7,000 rpm. Its clear shape eliminates the need for an orientation
marking. e following “frozen” images will appear if the ashing rate of
7,000 is reduced:
e images showing 6,000 and 4,000 rpm are double or multiple images rather than single
images. Still images appear at 3,000 and again at 1,500 rpm. 1,500 is half of 3,000. is
means that the actual rotational speed is 3,000 rpm.
e orientation marking conrms that the images at 3,300, 1,650 and 825 rpm are harmonic
multiple images. ree identication marks appear in each of these images.
Still images appear at 1,100 rpm and again 550 rpm, each displaying just one mark. Remember that a still image always appears exactly at integer division of the speed of the actual
rotational speed of an object. 550 is half of 1,100. is means that the rotational speed of the
ventilator must be 1,100 rpm
Image No. 1 2 3 4
Flashing rate 6.000 4.000 3.000 1.500
– 17 –
6.0 TECHNICAL DATA
NOTE: Warranty void! The device may only be repaired by the manufacturer or the supplier.
NOTE: Correct disposal! The electronic components in the device contain environmentally
harmful substances. They must be disposed of in accordance with the environmental
regulations in the country of use.
General Parameters QB-LED Both QBS-LED
Number of LEDs 40 118
Frequency Range 30–300,000 flashed per minute
Display LCD, multiline
Accuracy ±0.02% (±1 digit/±0.025 µs)
Resolution ± 0.1 (30.0 ... 999.9 FPM)
± 1 (1,000 ... 9,999 FPM)
± 10 (10,000 ... 300,000 FPM)
External Trigger Input 3 - 30 V / max. 5 mA
(isolated optocoupler)
DIN 41524 5-pin standard connector
Uout = 24 VDC, 60 mA
Certifications EMV / EMC 2004/108/EG; 2006/95 EG; DIN EN 61010-1:2011;
DIN EN 62471:2009; CE; DIN EN 60825-1:2008 (Version QBS-LED)
Flash Parameters QB-LED Both QBS-LED
Light Duration Adjustable
Light intensity approx.. 1,750 Lux @ 1° approx 1,750 Lux @ 1°
Flash Color approx. 5,000 – 8,000 K
Power Supply
Power Supply QB-LED QBS-LED
Continuous Use Time approx. 7:00 h @ 0.500° (~875 Lux) approx. 2:30 h @ 0.500° (~4,000 Lux)
approx. 4:00 h @ 2,000 Lux (1.140°) approx. 5:00 h @ 2,000 Lux (0.250°)
Housing QB-LED Both QBS-LED
Material Aluminum
Dimensions 6.0 x 5.1 x 4.4 in. (150 x 130 x 112 mm)
Weight approx 1,050 g approx 1,150 g
Ambient Conditions
Temperature 32 – 104 °F (0 – 40 °C)
Type of Protection IP30
–18 –
7.0 FACTORY RESET
To reset the factory settings, press and hold the rotary/push knob (D) for at least 5
seconds
– 19 –
8.0 WARRANTY
ELECTROMATIC Equipment Co., Inc. (ELECTROMATIC) warrants to the original
purchaser that this product is of merchantable quality and conrms in kind and quality
with the descriptions and specications thereof. Product failure or malfunction arising
out of any defect in workmanship or material in the product existing at the time of
delivery thereof which manifests itself within one year from the sale of such product,
shall be remedied by repair or replacement of such product, at ELECTROMATIC’s
option, except where unauthorized repair, disassembly, tampering, abuse or
misapplication has taken place, as determined by ELECTROMATIC. All returns
for warranty or non-warranty repairs and/or replacement must be authorized by
ELECTROMATIC, in advance, with all repacking and shipping expenses to the address
below to be borne by the purchaser.
THE FOREGOING WARRANTY IS IN LIEU OF ALL OTHER WARRANTIES,
EXPRESSED OR IMPLIED, INCLUDING BUT NOT LIMITED TO, THE
WARRANTY OF MERCHANTABILITY AND FITNESS FOR ANY PARTICULAR
PURPOSE OR APPLICATION. ELECTROMATIC SHALL NOT BE RESPONSIBLE
NOR LIABLE FOR ANY CONSEQUENTIAL DAMAGE, OF ANY KIND OR
NATURE, RESULTING FROM THE USE OF SUPPLIED EQUIPMENT, WHETHER
SUCH DAMAGE OCCURS OR IS DISCOVERED BEFORE, UPON OR AFTER
REPLACEMENT OR REPAIR, AND WHETHER OR NOT SUCH DAMAGE IS
CAUSED BY MANUFACTURER’S OR SUPPLIER’S NEGLIGENCE WITHIN ONE
YEAR FROM INVOICE DATE.
Some State jurisdictions or States do not allow the exclusion or limitation of incidental
or consequential damages, so the above limitation may not apply to you. The duration
of any implied warranty, including, without limitation, tness for any particular
purpose and merchantability with respect to this product, is limited to the duration of
the foregoing warranty. Some states do not allow limitations on how long an implied
warranty lasts but, not withstanding, this warranty, in the absence of such limitations,
shall extend for one year from the date of invoice.
ELECTROMATIC Equipment Co., Inc.
600 Oakland Ave. Cedarhurst, NY 11516—USA
Tel: 1-800-645-4330/ Tel: 516-295-4300/ Fax: 516-295-4399
Every precaution has been taken in the preparation of this manual. Electromatic
Equipment Co., Inc., assumes no responsibility for errors or omissions. Neither is any
liability assumed for damages resulting from the use of information contained herein.
Any brand or product names mentioned herein are used for identication purposes only,
and are trademarks or registered trademarks of their respective holders.
–20 –
NOTES
ELECTROMATIC
E Q U I P M E N T C O., I N C.
600 Oakland Ave., Cedarhurst, NY 11516 – USA
TEL: 516-295-4300 • FAX: 516-295-4399
CHECK•LINE
®
INSTRUMENTS
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