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PCE-LDC 10
Operating Manual
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PCE Instruments PCE-LDC 10 Operating Manual

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Leakage detector
PCE-LDC 10
www.pce-instruments.com/english
www.pce-instruments.com
PCE Instruments UK Ltd.
Units 12/13
Southpoint Business Park
Ensign way
Hampshire / Southampton
United Kingdom, SO31 4RF
From outside UK: +44
Tel: (0) 2380 98703 0
Fax: (0) 2380 98703 9
info@industrial-needs.com
Operating Manual
Contents
Page 2 of 15
1 Contents
1 Contents ................................................................................................................................................. 2
2 Important information ........................................................................................................................... 3
3 Safety instructions ................................................................................................................................. 4
3.1 About this document ....................................................................................................................................................................... 4
3.2 Ensure security ................................................................................................................................................................................. 4
3.3 Environmental protection ................................................................................................................................................................ 4
4 General function description ................................................................................................................. 5
5 Device components and controls .......................................................................................................... 6
5.1 The front side ................................................................................................................................................................................... 6
5.2 Sensor head and connections .......................................................................................................................................................... 7
6 Accessories............................................................................................................................................. 8
6.1 Acoustic trumpet .............................................................................................................................................................................. 8
6.2 Focus tube with focus tip ................................................................................................................................................................. 8
7 Commissioning ....................................................................................................................................... 9
7.1 Switching-on ..................................................................................................................................................................................... 9
7.2 Louder/quieter ................................................................................................................................................................................. 9
7.3 Laser ................................................................................................................................................................................................. 9
8 Display .................................................................................................................................................. 10
8.1 Signal strength (level) ..................................................................................................................................................................... 10
8.2 Volume/sensitivity ......................................................................................................................................................................... 10
8.3 Battery level ................................................................................................................................................................................... 10
9 Battery charging ................................................................................................................................... 11
9.1 Protection of exhaustive discharge ................................................................................................................................................ 11
10 Applications ...................................................................................................................................... 12
10.1 Leakage detection in compressed air systems ............................................................................................................................... 12
11 Special product features .................................................................................................................. 13
12 Scope of delivery .............................................................................................................................. 14
13 Performance chart ........................................................................................................................... 15
Important information
Page 3 of 15
2 Important information
Dear customer,
thank you for purchasing our leakage detector PCE-LDC 10! Please read these operating instructions thoroughly and observe our notices before performing the commissioning. Only if the described regulations and notices are precisely observed, can the flawless function of the device and the safe operation be guaranteed.
In case of a non-observance or non-compliance, no claims for the resulting damages can be asserted based on the manufacturer's liability.
Any kind of modification of the equipment, provided that it does not correspond to the intended and described processes, will lead to the expiry of the warranty and exclusion of liability.
The device is solely intended for the described purpose.
PCE Instruments shall not assume any warranty with respect to the suitability for any particular purpose, and shall not assume any kind of liability for errors which are printed in this manual. Nor for consequential damages in connection with the delivery, performance or use of this device.
Safety instructions
Page 4 of 15
3 Safety instructions
3.1 About this document
Read through carefully this documentation and familiarize yourself with
the product before putting it to use. Pay particular attention to the safety warnings to prevent injury and product damage.
Keep this documentation to hand for easy reference when needed. Pass on this documentation to any subsequent users of the product.
3.2 Ensure security
Use the product only appropriate, in accordance with the regulations and
within the parameters specified in the technical data. Do not apply force.
Measure the unit away from or near energized parts!
Please maintain a sufficient safety distance during the leak checking on electric systems, in order to avoid dangerous electrical shocks!
Always switch on the device, before putting on the headphones! In case
of high signal levels (bar graph in the red zone), the volume can be correspondingly high. The volume can be reduced with the help of the sensitivity adjustment.
Never point the laser directly into the eyes! Absolutely devoid a direct
irradiation of the eyes of humans and animals!
Laser module: according DIN EN 60825-1:2015-07 Class 2 (<1mW)
Observe the prescribed storage and operating temperatures By improper use of the device, the warranty will be lost.
3.3 Environmental protection
Disposal of faulty rechargeable batteries / empty batteries in accordance with applicable
legal regulations
Lead back the product after the end of the period of use to the separate collection for
electric and electronic devices (observe local regulations) or return the product to
PCE Instruments for disposal.
General function description
Page 5 of 15
4 General function description
Noises in the ultrasonic range develop when gases escape from leaks in piping systems (for example,
leaking screw connections, corrosion etc.). With the PCE-LDC 10 even the smallest leaks, which are inaudible to the human ear and also non-visible due to their size, can be detected even if they are several meters
away. The PCE-LDC 10 converts the inaudible ultrasonic to audible frequencies. With the conveniently wearable and soundproof headphones, these sounds can even be perceived in noisy environments.
With the help of an integrated laser pointer, which serves as a targeting device, the leak can be located even more accurately.
The sensitivity of the device can be further improved through the use of a specially designed acoustic trumpet, which can ensure a greater concentration of the sound waves. This acoustic trumpet acts as a directional microphone, that suppresses annoying background noises and also facilitates the precise localization of leaks in inaccessible areas. The internal laser pointer can also be used without restrictions due to the special construction of the acoustic trumpet.
Device components and controls
Page 6 of 15
5 Device components and controls
5.1 The front side
The device components and controls of the front side are described in the following picture.
LED status display
On/off switch
Volume/sensitivity decrease
Volume/sensitivity increase Laser on/off button
2“ TFT color
display
Device components and controls
Page 7 of 15
5.2 Sensor head and connections
Ultrasonic microphone
Opening of the laser pointer
Battery charge socket
3.5mm jack for the headphone
Accessories
Page 8 of 15
6 Accessories
Further accessories are available for the PCE-LDC 10 with which the leak detection can be facilitated and improved.
6.1 Acoustic trumpet
Through the concentration of sound waves, the acoustic trumpet creates an acoustic amplification which enables a more precise detection of the leak. Through its special design, the integrated laser pointer will remain usable. The acoustic trumpet is simply placed onto the sensor head and slightly twisted until the latch head reaches the stopper. While doing this, please proceed with caution to prevent an over-winding of the cone.
6.2 Focus tube with focus tip
The focus tube with the tip is used for the detection of very small leaks, in order to locate and pinpoint them precisely. Just like with the acoustic trumpet, the tube is placed onto the sensor head and latched with a twisting motion.
Acoustic trumpet
Focus tube with focus tip
Mounted acoustic trumpet
Mounted focus tube with focus tip
Commissioning
Page 9 of 15
7 Commissioning
7.1 Switching-on
A pressing and holding of the on-off-button for about 1s, will switch on the device and a Start-Up sequence will appear on the display. Pressing the button again will switch off the device.
7.2 Louder/quieter
With the volume increase and decrease buttons the volume in the earpiece and the sensitivity can be increased or respectively decreased in 16 steps. By pressing and holding the respective button, the value will automatically increase or decrease.
7.3 Laser
The integrated laser pointer can be switched on or off with the laser on/off button. In the on state, a laser warning symbol will appear in the display. In the off state, the triangle will remain grey.
Warning: Never point the laser directly into the eyes! Absolutely devoid a direct irradiation of the eyes of humans and animals!
Display
Page 10 of 15
8 Display
The display elements are shown and described in the following picture.
8.1 Signal strength (level)
In the middle of the display, a bar graph is displayed depending on the received signal strength. A numerical value of the received signal strength in dB will also appear in the upper-left corner of the display. The max. level to be displayed is 60 dB.
8.2 Volume/sensitivity
The selected volume/sensitivity will appear on the right side in a bar with up to 16 steps.
8.3 Battery level
On the bottom left, a battery symbol is displayed with a battery level bar. The current battery voltage in volts is also displayed below it.
Signal level display in dB
Display laser on/off
Battery level and voltage
Bar graph display of the received signal level (60dB max.)
Bar graph for the selected sensitivity (16 levels)
Battery charging
Page 11 of 15
9 Battery charging
The battery is charged within the device. For this, the supplied plug-in power supply is connected to the
built-in charging socket of the PCE-LDC 10 and the 230V socket.
The PCE-LDC 10 checks the charge status of the battery and automatically starts the charging process. The following scenarios are possible:
If the battery is sufficiently charged, the status LED will flash green after the connection of the
power supply and no additional charging will be performed.
If the charge state of the battery is too low, the charging process will automatically start and the
LED will light up red. The charging is automatically discontinued after the battery reaches its full capacity. The LED will then be permanently illuminated in green.
A red blinking LED signals a charging error. This may have caused during charging outside the
valid temperature range (0-40 °C).
Comment1:
Switching on the device during charging, the display will show additionally a progress bar with The text “Charging”.
9.1 Protection of exhaustive discharge
To protect the Li-ION accumulator of exhaustive discharge the device is switching off automatically if a cell voltage of 6,4V will be reached.
1
Available with FW-version V1.12
Connect the power supply to the charging socket
The LED is illuminated in red during the battery charging
Applications
Page 12 of 15
10 Applications
The typical applications for the PCE-LDC 10 include the detection of:
Leaks in pressure and vacuum systems Leaks in containers Leakage points in the pneumatic brakes of trucks and trains Leaks in piping systems Leaks in oxygen connections in hospitals Leaks in steam separators - leaky valves electrical partial discharges on seals
Also defective bearings in engines and transmissions produce sounds in the ultrasonic range, which can
be protected with the PCE-LDC 10.
10.1 Leakage detection in compressed air systems
Compressed air is one of the most costly forms of energy. In Germany alone, 60,000 compressed air systems are consuming 14.000.000.000 KWh of electricity each year. 15% to 20% of these could easily be saved (Peter Radgen, Fraunhofer Institut, Karlsruhe). Much of these costs are attributable to leaks in compressed air systems. The air simply "escapes" unused.
Large openings can be detected easily (you can clearly hear the hissing sound), but often holes smaller than 1 mm2 remain undetected because they cannot be heard. The PCE-LDC 10 is perfectly suited for the
detection of these small openings.
The unit is focused on the pipe or the component where leaks are suspected. Initially the sensitivity will be set to half of the full value. The integrated laser will assist the location detection from a certain distance. The sensitivity will then be varied with the volume control until the characteristic sound can be heard.
A significant sensitivity improvement can already be attained with the help of the acoustic trumpet which is already included in the set. Through this, it is possible to determine leakages even from larger distances. To detect very small openings, a focus tube with a directional tip is attached onto the sensor, and the suspicious points are directly approached in close proximity.
Special product features
Page 13 of 15
11 Special product features
Ruggedness and low weight ensure a fatigue-free operation within industrial environments improved detection of leakages with an optional acoustic trumpet modern lithium-ion battery with a high capacity and an external battery charger Operating time > 10 h simple operation via keypad
Scope of delivery
Page 14 of 15
12 Scope of delivery
The PCE-LDC 10 is available either as a stand-alone device or as a set. The set contains all the components and accessories, which are housed protected in a rugged and shock-resistant transport case.
Acoustic trumpet
Focus tube with focus tip
Soundproof headset
Battery charger
PCE-LDC 10 ultrasonic
detector
Transport case
Performance chart
Page 15 of 15
Technical Data PCE-LDC 10
Handheld case dimensions
263 x 96 x 88 mm
Weight
0.4 kg, complete set in the case approx. 2.8 kg
Frequency range
40kHz (+/- 2kHz)
Power supply
Internal 7.4 V lithium-ion battery
Operating time
> 10 h
Operating temperature
-5 °C to +40 °C
Charging
Ext. battery charger (included in the scope of delivery)
Charging time
approx. 1.5 h
Storage temperature
-10 °C to +50 °C
Laser
Wavelength 645-660nm, output < 1mW (Laser class 2)
Connections
3.5 mm jack for headphones, power jack for connecting an external charger
13 Performance chart
It shows the detection distance of various hole diameters at different pressures (lab environment).
Pressure / diameter
0.1 mm
0.2 mm
0.5 mm
0.5 bar
2 m
2 m
10 m
5.0 bar
8 m
14 m
18 m
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