PCE Instruments PCE-LDC Manual de usuario

Address:East Room 306,3th Floor,1st Building,Shenhua Industrial Park,Meihua Road, Futian District,Shenzhen City

Tel:0755-32978297 Email:hj@pce-instruments.cn

Manual

Leakage detector PCE-LDC 10

Version 1.0

Date of creation: 08.09.2015

Date of last change: 23.05.2016

Address:East Room 306,3th Floor,1st Building,Shenhua Industrial Park,Meihua Road, Futian District,Shenzhen City

Tel:0755-32978297 Email:hj@pce-instruments.cn

Manual

Contents

Introduction.................................................................................................................................

Safety notes.................................................................................................................................

Specification...............................................................................................................................

System description...................................................................................................................

4.1

Device components and controls......................................................................................................

4.1.1

The front side..........................................................................................................................................

4.1.2

Sensor head............................................................................................................................................

4.1.3

Accessories.............................................................................................................................................

4.2

Commissioning....................................................................................................................................

4.2.1

Switching on............................................................................................................................................

4.2.2

Louder/ quieter........................................................................................................................................

4.2.3

Laser........................................................................................................................................................

4.3

Display.................................................................................................................................................

4.3.1

Signal strength (level)............................................................................................................................

4.3.2

Volume/ sensitivity..................................................................................................................................

4.3.3

Battery level.............................................................................................................................................

4.4

Battery charging..................................................................................................................................

4.4.1

Deep discharge protection.....................................................................................................................

4.5

Applications.........................................................................................................................................

4.5.1

Leakage detection in compressed air systems....................................................................................

4.5.2

Determination of leaks in non-pressurized systems............................................................................

4.6

Scope of delivery................................................................................................................................

Address:East Room 306,3th Floor,1st Building,Shenhua Industrial Park,Meihua Road, Futian District,Shenzhen City

Tel:0755-32978297 Email:hj@pce-instruments.cn

Manual

1 Introduction

Thank you for purchasing a PCE-LDC 10 from PCE Instruments.

The leakage detector PCE-LDC 10 is used for many different applications in the industry.

For example it finds place in compressed air-, gas-, steam- and vacuum systems. The soundproofed

headphone helps to work in loud areas. It also finds use at places where gas can stream out of pipes.

The leakage detector PCE-LDC 10 helps there because the sound of streaming gas can be in the

ultrasonic regions.

The leakage detector converts the ultrasound in a hearable frequency. The mounted laser additionally

helps to aim the leak. The hopper is designed to bundle the sound waves and suppress interferences.

2 Safety notes

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.

Please maintain a sufficient safety distance during the leak checking on electric systems, in order to

avoid dangerous electrical shocks!

Never point the laser directly into the eyes! Absolutely devoid a direct irradiation of the eyes of

humans and animals!

Observe the prescribed storage and operating temperatures.

The warrantee shall be void in case of an improper use or an exposure to excessive force.

This user's handbook is published from PCE Instruments without any guarantee.

We expressly point to our general guarantee terms, they can be found in our general terms of business.

If you have any questions please contact PCE Instruments.

3 Specification

Frequency range

40 kHz ± 2 kHz

Connections

3.5 mm jack for headphones

Wavelength laser

Power jack for connecting an external charger

645-660nm

Output laser

<1mW (Laser class 2)

Operating time

> 10h

Charging time

Approx. 1.5h

Operating temperature

0 … +40°C

Storage temperature

-10 … +50°C

Address:East Room 306,3th Floor,1st Building,Shenhua Industrial Park,Meihua Road, Futian District,Shenzhen City

Tel:0755-32978297 Email:hj@pce-instruments.cn

Manual

4 System description

4.1 Device components and controls

4.1.1 The front side

1. 2 “ TFT color display

2. LED status display

3. Volume/ sensitivity increase

4. Laser on/ off button

5. On/ off switch

6. Volume/ sensitivity decrease

4.1.2 Sensor head

1. Ultrasonic microphone

2. Opening of the laser pointer

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Tel:0755-32978297 Email:hj@pce-instruments.cn

Manual

4.1.3 Accessories

Sound cone Shotgun with tip

4.1.3.1 Sound cone

Through the concentration of sound waves, the sound cone 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 sound cone 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.

4.1.3.2 Shotgun with tip

The shotgun with the tip is used for the detection of very small leaks, in order to locate and pinpoint them

precisely. Just like with the sound cone, the tube is placed onto the sensor head and latched with a

twisting motion.

Address:East Room 306,3th Floor,1st Building,Shenhua Industrial Park,Meihua Road, Futian District,Shenzhen City

Tel:0755-32978297 Email:hj@pce-instruments.cn

Manual

4.2 Commissioning

4.2.1 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

4.2.2 Louder/ quieter

With the volume increase and decrease buttons the volume in 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.

4.2.3 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.

4.3 Display

The display elements are shown and described in the following picture.

1. Signal level display in dB

2. Bar graph display of the received signal level (60dB max.)

3. Bar graph for the selected sensitivity (16 levels)

4. Display laser on/ off

5. Battery level and voltage

Address:East Room 306,3th Floor,1st Building,Shenhua Industrial Park,Meihua Road, Futian District,Shenzhen City

Tel:0755-32978297 Email:hj@pce-instruments.cn

Manual

4.3.1 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.

4.3.2 Volume/ sensitivity

The selected volume/ sensitivity will appear on the right side in a bar with up to 16 steps.

4.3.3 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.

4.4 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.

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.

Comment:

During the charging, the unit will not be operational. Additionally, it cannot be switched on during the

charging process. A switched on device will automatically switch off if the power supply for the battery

charging is connected.

4.4.1 Deep discharge protection

The battery pack has a protection for deep discharge and turns off at 6V.

Address:East Room 306,3th Floor,1st Building,Shenhua Industrial Park,Meihua Road, Futian District,Shenzhen City

Tel:0755-32978297 Email:hj@pce-instruments.cn

Manual

4.5 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.

A handy ultrasonic transmitter is also available as an optional accessory for the detection of leaks in

pressureless system.. The transmitter is positioned in such a manner that the sound can penetrate

the piping system. The ultrasonic signal can penetrate even the smallest openings, which can then be

detected with the PCE-LDC 10.

To this is possible to detect even the smallest leaks on ship hatches, doors and windows, which in

turn opens up a further application area when checking seals.

4.5.1 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 sound cone 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 shotgun with a directional tip is attached onto the sensor, and the

suspicious points are directly approached in close proximity.

4.5.2 Determination of leaks in non-pressurized systems

As already mentioned the PCE-LDC 10 can also be used for the leak detection on the seals of doors,

windows and containers. For this purpose, an ultrasonic sound generator is positioned inside of the room

or the container. If small openings exist on the seals, then the ultrasonic signals will penetrate through

these towards the outside. By "traveling" along these sealing areas these leaks can be detected precisely,

through the appropriate sound in the headphones. The intensity of sound illustrates the magnitude of the

leak. The louder the sound is heard, the bigger the leak!

4.6 Scope of delivery

1x Leakage detector PCE-LDC 10

1x soundproof headphones

1xShotgun with tip

1x Sound cone

1x Power supply

1x Carrying case

1x Manual

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