
CRT 10D, 50D, 200D
The Cable Route Tracer (CRT) is a vital tool for pinpointing faults in underground power and telecom cable networks. This sophisticated audio frequency system is built to handle a range of important tasks, such as tracing the routes of metallic cables, measuring their depth, tracking live loaded cables, and conducting ground surveys of underground utilities.

Route tracing of
buried metallic cables
up to 15 km in length

LCD bar-graph display on
the audio frequency receiver
for precise cable route indication

Tracing of live loaded
underground cables with passive
frequency and inductive coupling

Direct depth measurement of
buried cables up to 5 meters

Supports both peak and null reception methods for accurate route detection

Built-in current
measurement capability
Technical Specifications
Technical Specifications | |||
Model Name | CRT 10D | CRT 50D | CRT 200D |
Audio Frequency Generator | AFG 10 | AFG 50 | AFG 200 |
Output Power | 1, 2, 5 and 10 Watts selectable | 5, 10, 25 and 50 Watts selectable | 5, 25, 50, 100, 200 Watts selectable |
Impedance Matching | 480Hz, 1450Hz & 9820Hz selectable | ||
Indication | Analog meter indication to indicate of transmitted power and matching ON Indication | ||
Power Supply | 230V AC ±10%, 50 Hz Single phase or external 12 Volt DC of internal rechargeable accumulator. | 230VAC ±10%, 50Hz Single phase | 230VAC ±10%, 50Hz Single phase |
Operating Time | Internal accumulator 1.5 Hrs on 10 Watts Mains and Ext. DC Power supply no time limit. | Ext DC power supply no time limit | 3 hours |
Storage Temp. | -5°C – 60°C | ||
Working Temp. | 0°C – 55°C | ||
Dimensions (LxHxD) in mm | 270 mm x 248 mm x 175 mm | 343 mm x 132 mm x 305 mm | 480 mm x 510 mm x 235 mm |
Weight | 5.45 Kg Approx | 9.5 kg Approx | 30Kg Approx. |
AUDIO FREQUENCY RECEIVER | AFR 4D | ||
Receiving Frequency | Receiving three kinds of sinusoidal AC signals of different frequencies, namely low frequency, intermediate frequency, high frequency, 50Hz 480Hz, 1.45KHz, 9.82KHz. | ||
Receiving mode | Peak & Null | ||
Signal interface | Three interfaces of digital size, grating length, and audio prompt simultaneously indicate the strength of the signal | ||
GPS (Optional) | Available | ||
Display interface | Large-screen, graphic display, with backlight | ||
Gain Control | Manual adjustment, dynamic range 000 – 100db | ||
Detection Length | When directly connected to the cable, the maximum length is 15 KM. | ||
Depth measurement | upto 7m (On direct Connection) | ||
Depth Accuracy | 5% of buried depth | ||
Current Measurement | Direct reading current | ||
Power Source | 1.2V X 6 rechargeable battery | ||
Stand by Time | More than 12 hours, power prompt | ||
Working Temperature | 0°C – 55°C | ||
Storage Temperature | -5°C – 60°C | ||
Dimensions | 690mm x 110mm x 230mm | ||
Weight | 1.8 Kg Approx |