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Pulse current measuring system PD200
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  3. Leak detection
  4. Pulse current measuring system PD200

Impulse Current Measuring System PD200

Complete set in a practical transport case for the pinpoint leak detection on sealing sheet systems and plastic covered objects.

Impulse Current Measuring System PD200
Impulse Current Measuring System PD200

As impulsive as effective – quick leak detection made easy

The impulse current measuring system PD200 is the ideal solution for the­ ­pinpoint location of grounded leaks in non-conducting sealing systems – e.g. bitumen, elastomer, PE-HD or other ­plastic sheets.

The PD200's weight and dimensions could once again be clearly reduced as opposed to its previous model. Consequently, the PD200 is not only 20 % lighter, it also takes up 30 % less volume in the case, which still holds the full set of PD200 accessories!

In addition to the ergonomic recessed handle integrated in the cover with an inner Grip-Clip for the best hold while carrying the PD200 is also provided with a lateral bar handle for transport.

Due to the user-friendly miniaturization and the transport bar handle providing additional mounting options for instance for ropes, the device can easily be carried onto the roof area even through bottlenecks such as safety ladders.

Despite the reduction in weight, the stability of the PD200 could also be improved once again by manufacturing the housing as a robust, aluminium-based lightweight construction.

Light, robust, versatile – the PD200 enables reliable leak detections of flat roofs, ­terraces, swimming pools, ponds or landfill liners …

With the compact pulse current measuring system PD200 one can carry out tightness tests and leak detections of various sealing sheet systems, e. g. in case of geotechnical applications such as landfill or tunnel construction and the construction of fire water and swimming ponds or retention reservoirs.

In the industrial construction sealing sheets of transfer sites, tank terminals or hall floor sealings for LAU and HBV systems with substances hazardous to water can be checked for tightness quickly and easily.

Easy handling

Whilst the needle on the pulse receiver’s display points in the direction of the leak, an attenuator enables the adjustment of the signal strength – a low attenuation value at a great distance quickly leads to the leakage area and upon approach can be increased in several stages for a more precise positioning.

Furthermore, the pulse generator promotes the quick leak detection by means of a green signal lamp and if required an additionally connectable acoustic signal transmitter. Both can be widely perceived across the roof from almost every angle.

Ground faults during installation work are indicated by the PD200 by means of an acoustic warning signal and a red warning light, in case of a short circuit the output signal is switched off automatically.

A circumferential protective bar made of steel ensures that signal lamp and warning light are protected against damages.

PD200 Pulse receiver

Owing to the compact dimensions and the light weight, the device can easily be transported onto the roof area even through bottlenecks such as safety ladders.
Pulse current measuring system PD200
Connections and operating elements of the PD200 are accommodated and well protected inside the case construction, offering sufficient stowage space for further measuring equipment.
Impulse Current Measuring System PD200
The PD200 pulse current measuring system is an optimal solution for non-destructive leak detection, leak testing and quality control of foil or bitumen roofs.
Impulse Current Measuring System PD200

The PD200 is qualified for manifold possible applications:

  • Ideal for pinpoint location of grounded leaks in non-conducting sealing systems
  • Non-destructive inspection of foil and bitumen roofs
  • Leak detection even in case of flat roofs with superimposed load (e.g. gravel fill, greening, paving etc.)
  • Tightness test of hall floor sealing for LAU (storage, filling and handling of substances hazardous to water) and HBV (production, ­treatment and use of substances hazardous to water) systems (WHG – Water Resources Act)

PD200 standard package scope of delivery:

  • 1 Pulse generator in transport case design
  • 2 Pulse receiver with shoulder strap, incl. batteries
  • 3 Two measuring rods, in three parts, each consisting of handle part 4 with rubber grip, extension piece 5 and measuring tip 6. All measuring rod elements are provided with screw connections for a quicker assembly. One handle part is additionally equipped with an integrated clamping spring to be used for uncoiling.
  • 7 Connecting cable for loop
  • 8 Reel with 200 m of loop wiring
  • 9 Reel with 25 m of earth cable ­extension (red)
  • 10 One measuring rod connection cable each in red and black

Optionally available:

  • 11 Gravel claw for a simplified laying of loop wiring under the gravel fill
Scope of delivery PD200

The functional principle of the PD200's pulse current method

The PD200’s functional principle is based on the pulse current method where voltage is applied to the foil to be tested: a ring main is installed with the negative pole on the sealing surface and a grounding cable with the positive pole on the bottom side of the respective sealing sheet.

Surface moisture serves as conductor for the electric current applied via the pulse generator, the flow direction of which is captured by use of the measuring rods and indicates the direction to the leak position on the pulse receiver.

For the application of the PD200 it is irrelevant whether the sealing is gravelled or greened, the only thing that needs to be ensured is a sufficient drenching of the sealing sheet.

Pulse current method

A few practical benefits:

  • Professional quality “made in Germany” – originally produced by Trotec
  • Quick leak detection thanks to ­additional, clearly visible signal lamp and acoustic signal generator connectable as needed
  • Robust, splash-proof transport case design
  • 20 % lighter than the previous model
  • 30 % less volume with unchanged accessories
  • Once again improved stability owing to robust, aluminium-based ­lightweight construction
  • Can be easily transported even through bottlenecks such as safety ladders
  • Integrated short-circuit test, e.g. to check suspension points
  • Optional gravel claw for a simplified laying of loop wiring under the gravel fill
  • Practice-optimised German industrial design — protected design patent


Impulsstrommessgerät PD200 show in Trotec online shop

Technical data

Technical data
General information
  Article number 3.510.010.012
Generator unit
  Generator principle | Pulse current Voltage generator
  Pulse current
  No display
  Banana jack
Device control
  Push buttons
  Control knobs
Housing design
Type of protection
Power supply
  Internal (battery) - (receiver)
  Input voltage [V/Hz] | Pulse current 220 – 240 V / 50 – 60 Hz
  Length (packaging excluded) [mm] 265
  Width (packaging excluded) [mm] 465
  Height (packaging excluded) [mm] 253
  (packaging excluded) [kg] 8.5
Standard scope of delivery
Standard scope of delivery
  Pulse receiver and pulse current generator
  Shoulder strap for pulse receiver
  1 pair of measuring rods for pulse receiver
  Connecting cable for loop (black)
  Connecting cable for earthing (red)
  Reel with 200 m of loop wiring
  Reel with 25 m of earth cable extension (red)
  Measuring rod connection cable red
  Measuring rod connection cable black
  Operating manual
Ascertainable measured values and functions
Internal sensors
  Current [µA]
Functions and features
  Acoustic signal transmitter
  Visual signal transmitter
  Acoustic alarm signal in the event of a short circuit
  Automatic switch-off of the output signal in case of a short circuit

 standard equipment

 optionally available

 not available



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