As part of a cable tracing and fault location set, the generator LFG-2500 is used for the following tasks:

  • tracing – finding the route and burial depth of the underground utilities;
  • fault location – pinpointing core-to-sheath and inter-core short-circuit faults with an inductive method;
  • cable identification – identifying a correct cable in a bunch.


LFG-2500 delivers an incredible output signal power of up to 2500 VA.

Such immense power significantly enlarges an effective location range and enables efficient tracing and fault pinpointing even under such adverse conditions as deeply buried utilities, wet soil, strong inductive background interference, etc.


Output resistance of the generator is automatically matched with the load ensuring the maximum signal power across the entire operating range. This function makes LFG-2500 efficient when used under adverse location conditions.


The generator can output the current of up to 50 A which expands the field of its application in cable fault pinpointing.


LFG-2500 can operate either in the continuous signal with 1024 Hz frequency generation mode or in the frequency modulation (1024 Hz and 2048 Hz) mode.

Frequency modulation mode makes tracing underground utilities with high level of extraneous noise more accurate.


The generator features an OLED-display which remains bright and clearly readable even in the direct sunlight.

Display conveniently indicates such operating parameters as the output power level, output current, active operating mode, etc.


Enclosed in a shockproof plastic case, the generator weighs only 13 kg. Compact embodiment together with the colossal signal power allows to consider LFG-2500 as portable generator ideally suited for field operation on objects of any complexity.

* Pictures used herein are for illustration purposes only. *

System parameters Sets of operating frequencies

1024 Hz

1024 / 2048 Hz

Number of frequencies used simultaneously 1
Frequency selection Manual
Modulation type Frequency
Output power adjustment range 0 … 2500 V•A
Operating modes

■ Constant frequency output signal

■ Frequency-modulated output signal

Modulation (pulse) frequency 1 Hz
Load resistance range within which the maximum output power may be achieved 0.5 … 100 Ω
Load resistance matching Automatic
Maximum output open-circuit voltage 320 VRMS
Ranges and accuracies of indicated parameters Output current 0.1 … 50 ARMS
Relative error of output current indication 5 %
Interfaces Display Monochrome OLED
Safety Grounding ■ Protective earthing

■ Overload

■ Overheating

■ Galvanic isolation of the output signal circuit

Fuses ■ Mains power circuit: 10A, 240 V
Ingress protection rating (according to EN 60529) IP 54 (with lid closed)
Power supply and consumption Mains supply voltage 230 VAC, ± 10 %
Mains supply frequency 50 / 60 Hz
Power consumption up to 3000 V•A
Physical Dimensions, H × W × D 241 × 415 × 327 mm
Weight 13 kg


* Products specifications are subject to change without notice. *

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