Customer Service & Support: +49 2452 962-450

Business inquiries: +49 2452 962-400

Mon – Fri: 8:00 – 17:00 (CET)

LD6000 combination detector
  1. Products & Services
  2. Measuring devices
  3. Leak detection
  4. Combination measuring devices for leak detection
  5. LD6000 combination detector for leak detection

LD6000 combination detector

Leak detection and acoustic pipe location

LD6000 – The ideal solution for the industry, utility companies
and craft

Whether for line routing, leak encircling or pinpoint location – the advanced LD6000 and high-quality microphones of German manufacturing enable the capturing, signal processing and display of even the teensiest leakage sounds in as yet unknown dimensions.

With the LD6000, industrial users benefit from a universally applicable measuring instrument, which not only ensures quick and precise leak detection in wide supply networks, but by use of the hydrogen measurement method enables especially economic test methods, e.g. the tightness test of weld seams, valves, tanks, boilers, pressure lines or pump bodies.

The LD6000 provides manifold possible uses for utility companies' water loss analyses: Acoustic pinpoint location with highly sensitive ground microphones, trace gas leak detection in drinking water systems, route detection on metallic and non-metallic pipelines – or tightness tests of pipe connections and seals. Comprehensive equipment accessories like the ground, contact and palpation probe microphones make the LD6000 also a universal solution for quick and reliable leak detection in craft applications.

The LD6000 provides various adjustment possibilities for a quick and precise leak detection and can optionally be operated by the user via touchscreen or keys and control dials. Several default settings for many typical application cases are available for quick access, filters and further parameters can of course be configured individually.

The innovative LD6000 sets new standards in leak detection...

  • Acoustic pinpoint location
  • Pipework location
  • Long-term measurement with logging function
  • Trace gas detection
  • all with only one device!
Original Trotec LD6000

Standard scope of delivery:

  • LD6000 measuring device [1]
  • LD K – sound-protected headphones [2]
  • LD6000 BM – universal microphone with magnetic adapter [3]
  • LD6000 DA – tripod adapter [4]
  • LD6000 VL – palpation probe extension with tip [5]
  • LD6000 TG – shoulder strap [6]
  • PC connection cable
  • LD6000 carrying case [7]

Optionally available accessories:

  • LD6000 BMW – wind protected ground microphone (with dead man's grip) [8]
  • LD6000 VK – Connecting cable
  • LD6000 BMW DA – Tripod adapter for ground microphone LD6000 BMW [9]
  • LD6000 H2 - Hydrogen handsensor [10]
  • LD6000 H2 - Hydrogen groundsensor with integrated pump [11]
  • LD6000 H2 - pump kit - to retrofit pumpless groundsensors [12]

Feature overview

Hearing and seeing leakages – further acoustic modes

Hearing and seeing leakages – further acoustic modes

In addition to the smart mode, the LD6000 is further provided with different acoustic modes for an automatic or individual amplitude analysis of potential leaks.
Smart mode

Smart mode

The smart function (patent pending) in this appliance class is unique in the world – the smart way of leak detection!
Long-term measurement

Long-term measurement

For a clear identification of the point of leakage a non-stop measurement of up to 60 minutes can be recorded with the integrated noise logger and a potential leak can be recognized or eliminated by means of the recorded measured curve.
High-resolution colour graphic display with touchscreen function

High-resolution colour graphic display with touchscreen function

Control: either via touchscreen or buttons and rotary controls.

A few practical benefits:

  • Acoustic and trace gas leak detection with only one device
  • High-resolution colour graphic display with touchscreen function
  • Unique in the world in this appliance class: the innovative smart function for a still quicker precise leak detection (patent-protected)
  • Many typical cases of application already preassigned for quick access
  • All filters and parameters can be freely configured
  • Pipe location mode
  • Meets the requirements for ear protection as per accident prevention regulation BGV B3 (formerly VBG 121) when using the original headphones
  • Highly sensitive, robust precision microphones of German high-quality manufacturing

The principle of acoustic leak detection

On leaks in pressure pipes the with high speed outpouring water creates friction caused sound.

On the one hand the pipeline is made to vibrate. The sound that is generated is transmitted through the pipes and can be transformed into audible sound with a body sound microphone at a distant contact point (valve, hydrant, armature).

On the other hand the directly on the leak outpouring water creates sound, which are carried through the ground up to the surface. This sound can be picked up by a geophone and transformed into audible sound.

Diverse tasks

The innovative combination detector LD6000 is suitable for manifold tasks and makes acoustic and trace gas location with only one device possible:

  1. Acoustic pinpoint location with geophone.
  2. Location and pipeline tracing, also with plastic pipelines.
  3. Acoustic body sound measurement.
  4. Trace gas leak detection in drinking water networks.
  5. Leak detection and tightness testing on house installations and industrial pipings.

Pipe location mode


This mode serves to localize pressurized water lines especially those made of plastic, treated with ultrasound by pulse generator LD-PULS.

More information on LD-PULS...

Trace gas detection


When combined with the hydrogen sensor LD6000 H2, trace gas leak detection in supply networks or domestic installations can be performed quickly and precisely.

More information regarding the hydrogen sensor
LD6000 H2...


LD6000 Frequenzanalyse-Set show in Trotec online shop

Technical data

Technical data
General information
  Article number
  Min. measuring range [Hz] 0
  Max. measuring range [Hz] 4,000
  Amplification [dB] 120
  Input impedance [Ω] 1
  Max. output impedance [Ω] 10
Memory organisation
  Memory Internal flash memory for up to 20 measurement series and as buffer memory for recording long-term measurements of 5, 15, 30 and 60 min.
  Storage type Internal flash memory
  Bayonet (microphone)
  Bayonet (sensor)
  6.3 mm audio jack (headphones)
Device control
  Membrane keyboard
  Control knobs
Housing design
Type of protection
Ambient conditions
  Operation - min. temperature [°C] -5
  Operation - max. temperature [°C] 55
Operating time
  Up to 14 hours in continuous operation
  Up to 40 hours in normal usage
Power supply
  Battery type 4 x type LR14 C 1.5 V
  Length (packaging excluded) [mm] 210
  Width (packaging excluded) [mm] 160
  Height (packaging excluded) [mm] 60
  (packaging excluded) [kg] 1.05
Standard scope of delivery
Standard scope of delivery
  Sound-protected headphones
  Universal microphone
  Tripod adapter for universal microphone
  Palpation probe extension with tip for universal microphone
  Shoulder strap for measuring device
  Transport case
  PC connection cable (special USB solution)
  Operating manual
  Magnetic adapter for universal microphone
  Software LD6000 Transfer
Ascertainable measured values and functions
External sensors
  Sound [digits]
Functions and features
  Acoustic leak detection (audible sound) by use of F + L analysis function
  Acoustic leak detection (audible sound) by use of smart analysis function
  Acoustic long-term measuring (audible sound, logging function)
  Acoustic pipe location via sound ranging
  Trace gas leak detection
  Minimum level indication
  Averaged level
  Acoustic pulse wave measurement
  Automatic adjustment of filter frequencies
  Automatic adjustment of sensor sensitivity
  Preference memory function for manual filter settings
  Sound level override protection
  Trace gas detection with visual signal depending on the concentration
  Trace gas detection with acoustic signal depending on the concentration
  Control via touch function
  Control via keys
  Control via control dial
  High-pass filter adjustable
  Low-pass filter adjustable
  Up to 256 freely selectable filters

 standard equipment

 optionally available

 not available



Alternative products