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Application Scenarios
During a commercial building renovation in Shanghai, electricians needed to trace several unlabeled circuits from a floor box to the main distribution panel without shutting down power. Using the Fluke 2042, they connected the transmitter to the live circuit at the floor box and used the receiver to scan the panel. The clear signal and coding allowed them to quickly identify the correct 20A breaker among 100+ circuits, avoiding a costly full shutdown and ensuring worker safety.
Parameter
| Main Parameters | Value/Description |
|---|---|
| Manufacturer Part Number | 2042 (Kit includes 2042 Transmitter & Receiver) |
| Manufacturer | Fluke Corporation |
| Product Type | Cable & Pipe Locator Kit |
| Transmitter Output Signal | 125 kHz (Digitally coded to avoid crosstalk) |
| Tracing Depth (Typical) | Up to 2.5 m (Depends on soil/concrete medium) |
| Voltage Detection Range | 12 – 400 V AC/DC (Transmitter can detect external voltage) |
| Display | LCD with bargraph (signal strength), code, voltage indication |
| Power Supply | Transmitter: 6 x 1.5V AA (LR6) / Receiver: 1 x 9V (6LR61) |
| Safety Rating | CAT III 300 V |
| Dimensions (Rx/Tx) | Receiver: ~250 x 65 x 45 mm / Transmitter: ~190 x 85 x 50 mm |
| Weight (Approx.) | Receiver: ~270 g / Transmitter: ~400 g |
| Operating Temperature | 0 °C to +40 °C |
| Key Features | Live/dead circuit tracing, automatic sensitivity, built-in flashlight, auto power-off |
Technical Principles and Innovative Values
The Fluke 2042 stands out in the cable locating market due to its digital signal coding and dual-purpose design for both live and de-energized systems.
- Innovation Point 1: Digital Coding for Anti-Interference. Unlike basic analog locators that pick up ambient noise, the 2042 transmitter sends a unique digital code (selectable via front panel). The receiver only responds to this specific code, effectively rejecting interference from power lines, fluorescent ballasts, or other locators on site. This is critical in dense urban electrical environments or industrial plants with high EMI.
- Innovation Point 2: Universal Live/Dead Circuit Operation. The transmitter can be safely connected to live circuits (up to 400V) via test leads or used inductively on dead wires. This eliminates the need for system shutdowns during routine tracing, significantly reducing downtime in factories or data centers. The receiver also features a non-contact voltage detection mode to warn users of live conductors before physical contact.
- Innovation Point 3: Integrated Fault Finding. Beyond simple path tracing, the 2042 can identify short circuits and breaks in cables (e.g., underfloor heating loops). The signal strength drops abruptly at a break, allowing precise localization of faults without destructive digging or wall cutting.
