PCE Health and Fitness PCE-LDC 8 User manual

English
User Manual
PCE-LDC 8
Leak detector

Dear Customer,
thank you for choosing our product.
The operating instructions must be read in full and carefully observed
before starting up the device. The manufacturer cannot be held liable
for any damage which occurs as a result of non-observance or non-
compliance with this manual.
Should the device be tampered with in any manner other than a
procedure which is described and specified in the manual, the warranty
is cancelled and the manufacturer is exempt from liability.
The device is destined exclusively for the described application.
PCE Instruments offers no guarantee for the suitability for any other
purpose. PCE Instruments is also not liable for consequential damage
resulting from the delivery, capability or use of this device.
Errors and changes reserved.

Table of contents
1. Safety instructions............................................................................... 4
2. Application ......................................................................................... 6
3. Features............................................................................................. 6
4. Technical Data .................................................................................... 7
4.1 General ......................................................................................... 7
4.2 Electrical Data ................................................................................ 7
4.3 Performance chart .......................................................................... 7
5. Dimensional drawing............................................................................ 8
6. Operating ........................................................................................... 9
6.1 Operating Principle.......................................................................... 9
6.2 Operating Procedure ......................................................................10
6.3 Electrical connection.......................................................................11
7. Maintenance ......................................................................................11
8. Disposal ............................................................................................11
9. Warranty ...........................................................................................11

1. Safety instructions
Please check if this instruction manual accords to the product
type.
Please observe all notes and instructions indicated in this manual. It
contains essential information which have to be observed before and
during installation, operation and maintenance. Therefore this
instruction manual has to be read carefully by the technician as well as
by the responsible user / qualified personnel.
This instruction manual has to be available at the operation site of the
leak detector at any time. In case of any obscurities or questions,
regarding this manual or the product, please contact the manufacturer.
WARNING!
Compressed air!
Any contact with quickly escaping air or bursting
parts of the compressed air system can lead to
serious injuries or even death!
•Avoid that persons get hit escaping air or bursting parts of the
system.
WARNING!
Laser pointer!
Do not point into the eyes with the laser, it can lead
to serious injuries particularly on lens and retina or
even blindness!
•Never look directly in the laser
•Never point the laser at persons.
•Never point the laser at smooth and reflective surfaces it can lead
to a reflection of the laser.
WARNING!
Voltage used for supply!
Any contact with energized parts of the product, may
lead to an electrical shock which can lead to serious
injuries or even death!

WARNING!
Permitted operating parameters!
Observe the permitted operating parameters, any
operation exceeding this parameters can lead to
malfunctions and may lead to damage on the
instrument.
•Do not exceed the permitted operating parameters.
•Make sure the product is operated in its permitted limitations.
•Do not exceed or undercut the permitted storage and operation
temperature and pressure.
•The product should be maintained and calibrated frequently, at
least annually.
General safety instructions
•It is not allowed to use the product in explosive areas.
•Please observe the national regulations before/during operation.
Remarks
•It is not allowed to disassemble the product.
ATTENTION!
Measurement values can be affected by malfunction!
The product must be used properly and frequently
maintained, otherwise it may lead to wrong
measurement values, which can lead to wrong
results.
•Avoid condensation on the leak detector element as this will affect
the accuracy enormously.
Storage and transportation
•Make sure that the transportation temperature of the leak detector
is between -20°C... 50°C.
•For transportation it is recommended to use the packaging which
comes with the leak detector.
•Please make sure that the storage temperature of the sensor is
between -10°C... 50°C.
•Avoid direct UV and solar radiation during storage.
•For the storage the humidity has to be <90%, no condensation.

2. Application
The PCE-LDC 8 is a leak detector for pneumatic systems. When gases
are leaking through tubes and tanks an ultrasonic sound is produced
which can be detected by PCE-LDC 8 even from several meter distance.
The PCE-LDC 8 transforms these inaudible signals into a frequency
which can be easily heard by using the supplied noise isolated headset.
In unpressurised systems an ultrasonic tone generator can be used
whose sound will leak through small openings.
The integrated laser pointer helps to spot the leak from distance.
The PCE-LDC 8 leak detector is not developed to be used in explosive
areas. For the use in explosive areas please contact the manufacturer.
The PCE-LDC 8 leak detector is mainly used in compressed air systems
in industrial environment.
3. Features
•Leak detection in compressed air, refrigerants, simple of any gas.
•Insulation test of doors and windows.
•Detection of partial electrical discharges causing damages on
insulations.
•Can be used in noisy environments.
•Included laser pointer helps to locate the leak.
•Included display, showing the level of the leak.

4. Technical Data
4.1 General
Principle of measurement
Ultrasonic leak detection
Measuring medium
Air, refrigerants and any gases
Plugs
Plug 1: 4 pole connector shared by
headphone and battery charger
Plug 2: 3.5 mm stereo phone jack for sensor
or sensor cable connection.
Operating frequency
40 kHz ± 2 kHz
Operating temperature
0°C... 40°C
Operating time
About 6 hours without Laser pointer on
About 4 hours with Laser pointer on
Charging temperature
10°C... 45°C
Charging time
Around 1.5 hours
Material of the detector
PC + ABS
Dimensions
See dimensional drawing on the next page
Display
3 colour black-mask LCD, 10 level
Laser pointer
640... 660 nm wavelength
0.4.0.5 mW output power
Weight
2.5 kg (full set)
4.2 Electrical Data
Power supply
Internal NiMH rechargeable battery
4.3 Performance chart
The table shows the detection distance of at various hole diameters and
different pressures (lab environment).
Pressure / diameter
0.1 mm
0.2 mm
0.5 mm
0.5 bar
2m
2m
10m
5.0 bar
8m
14m
18m

5. Dimensional drawing

6. Operation
Please make sure that all components listed below are included in your
package.
Qty
Description
1
PCE-LDC 8 leak detector
1
Sensor unit
1
noise isolated
headphones
1
focus tube incl. focus tip
1
Cable from instrument to
sound probe
1
Battery charger
1
Transport case
1 user manual
Remark
•The sensor unit can be unplugged from the main instrument by
pulling the unit out of the holder. A separate coiled extension cable
is used to connect the sensor to the main unit.
6.1 Operating Principle
Air leaks produce wide-band ultrasounds in the range of 20... 80 kHz.
The higher the frequency the more energy it contains. But higher
frequencies cannot be transported in air that far. That is why the leak
detector operates at a centre frequency of 40 kHz which compromises
an optimum between energy and distance. Frequencies below and
above are cut in order to minimize the noise level.

6.2 Operating Procedure
The following steps explain the procedure of an appropriate use.
1. Press the Power button.
2. The Display of the PCE-LDC 8
look like the picture on the left
side.
•The laser pointer is off.
•the Display will show you:
◦the battery level.
◦the segments green till
red.
•User can change the
sensitivity with the wheel .
3. To activate the laser, please
press the button which is shown
on the left side.
4. Point with the laser at an
assumed leak. The display will
show the level of the leak.
5. To find the exact location of
the leak screw the focus tube
and the focus tip on the sensor.
6. Scan with the focus tip the
roughly location till the exact
location is found.
7. For difficult attainable location
you can use the separate coiled
extension cable.

6.3 Electrical connection
Either the headphone or the charger can be connected to PCE-LDC 8 at
a time.
Remark
If the instrument has not been used for more than 2 months, the
battery might be over discharged. Connect the battery charger and wait
about 2-3 minutes until the display can show you the actual battery
status.
7. Maintenance
To clean the sensor and its accessories it is recommended to use moist
cloth only.
ATTENTION!
Do not use isopropyl alcohol to clean the sensor and
its accessories!
8. Disposal
For the disposal of batteries in the EU, the 2006/66/EC directive of the
European Parliament applies. Due to the contained pollutants, batteries
must not be disposed of as household waste. They must be given to
collection points designed for that purpose.
In order to comply with the EU directive 2012/19/EU we take our devices
back. We either re-use them or give them to a recycling company which
disposes of the devices in line with law.
For countries outside the EU, batteries and devices should be disposed of
in accordance with your local waste regulations.
If you have any questions, please contact PCE Instruments.
9. Warranty
You can read our warranty terms in our General Business Terms which
you can find here: https://www.pce-instruments.com/english/terms.