The Pantong Technologies TDR-44 Cable Fault Locator Operation Manual provides safety rules, operating instructions, specifications, accessories, and service…
The TDR-44 Cable Fault Locator is a handheld pulse‑echo tester that visually indicates cable faults such as opens, shorts, and high‑resistance joints up to 3000 m on metallic cables. It uses a 128 × 64 graphic LCD with back‑lighting and operates from six AA batteries.
The manual covers introduction, battery replacement, safety precautions, detailed operating instructions, fault‑location procedures, specifications, accessories, warranty, and repair/service information. It also explains how to set the propagation velocity factor (PVF) for different cable dielectrics.
| Measure Range | 100, 300, 1000, 3000 m and Auto range |
|---|---|
| Accuracy | 0.9 % of range |
| Resolution | 1 % of range |
| Output Pulse | 5 V nominal in open circuit |
| Propagation Velocity Factor (PVF) | Variable from 0.01 to 0.99 |
| Output Impedance | 120 Ω |
| Power Supply | 6 AA alkaline or nickel‑cadmium cells |
| Weight | 550 g (with batteries) |
| Case Dimensions | 210 × 100 × 50 mm |
The unit operates from six AA size batteries.
Always check that the circuit to be tested is de‑energised before connecting the tester.
Measure a known length, press the Menu Select key to PVF mode, and adjust the up‑down keys until the measured distance matches the known distance.
It can measure up to 100 m, 300 m, 1000 m, 3000 m, or use an auto‑range mode.