1. Úvod
The NOYAFA NF-826 is a portable device designed for precise localization of buried or in-wall cables and pipes, as well as fault points like open circuits or short circuits. It consists of a transmitter and a receiver, enabling efficient detection without causing damage to walls or ground. This manual provides detailed instructions for safe and effective use of the NF-826.

Figure 1: NOYAFA NF-826 Transmitter and Receiver units.
2. Bezpečnostní informace
Vždy dodržujte následující bezpečnostní opatření, abyste předešli zranění nebo poškození zařízení:
- Do not use the device in explosive environments or near flammable gases.
- Ensure proper insulation when connecting to live circuits. Always wear appropriate personal protective equipment (PPE).
- Nepokoušejte se zařízení otevírat ani upravovat. Veškerý servis svěřte kvalifikovanému personálu.
- Udržujte zařízení suché a čisté. Nevystavujte jej extrémním teplotám nebo vlhkosti.
- Ověřte svtage range before connecting the transmitter to any circuit. The device measures AC/DC voltages od 12V do 400V.
3. Obsah balení
Balení NOYAFA NF-826 obsahuje následující položky:
- 1 x NF-826 Transmitter
- 1 x NF-826 Receiver
- 1 x USB nabíjecí kabel
- 1 x Test Lead Set (Red/Black)
- 1 x Alligator Clip Set (Red/Black)
- 1 x zemnící tyč
- 1 x Uživatelská příručka
- 1 x taška na přenášení

Figure 2: Included components of the NF-826 kit.
4. Konec produktuview
The NF-826 system comprises two main units: the Transmitter and the Receiver.
4.1. Transmitter (Emitter)
The transmitter generates a signal that is injected into the cable or pipe to be traced. It features an LCD display for self-test results and voltage measurements. Controls include power, signal level adjustment, and code setting.
4.2. Přijímač
The receiver detects the signal emitted by the transmitter. It has an adjustable sensitivity, a scanning function, a silent mode, backlight, and an integrated LED flashlight. The display shows signal strength and other relevant information.
5. Nastavení
5.1. Nabíjení zařízení
Both the transmitter and receiver are equipped with built-in 1400mAh lithium batteries. Before first use, fully charge both units using the provided USB charging cable and a standard USB power adapter (not included).

Figure 3: Charging the NF-826 Transmitter and Receiver.
5.2. Připojení vysílače
Connect the transmitter to the circuit or cable you wish to trace. Ensure a secure connection. For non-energized cables, connect one lead to the cable and the other to a good ground point using the ground rod. For energized cables, connect directly to the live wire, ensuring the voltage is within the device's operating range (12V-400V AC/DC).
5.3. Zapnutí
Press and hold the power button on both the transmitter and receiver to turn them on. The transmitter will perform an auto-test and display the results on its LCD screen.
6. Návod k obsluze
6.1. General Tracing Principle
The transmitter injects a coded signal into the target cable. The receiver then detects this signal, indicating the presence and path of the cable. The signal strength displayed on the receiver helps pinpoint the exact location and depth.

Figure 4: Tracing a buried cable with the NF-826, illustrating its range.
6.2. Detecting Buried and In-Wall Cables/Pipes
- Connect the transmitter to the cable or pipe. For optimal results, ensure a good ground connection if tracing non-energized lines.
- Zapněte obě jednotky.
- Walk along the suspected path of the cable with the receiver. The signal strength indicator on the receiver will increase as you get closer to the cable.
- Adjust the receiver's sensitivity (manual or automatic scanning mode) to refine the detection and pinpoint the exact location.

Figure 5: Detecting underground cables.

Figure 6: Detecting cables inside walls or underground.
6.3. Detekce zkratů a přerušení
For detecting breaks or short circuits, connect the transmitter to the affected line. The receiver will indicate a loss of signal or a change in signal pattern at the fault location. This is particularly useful for floor heating systems or other continuous circuits.

Figure 7: Detecting short circuits and breaks in electric floor heating lines.
6.4. NCV (Nekontaktní svtage) Funkce
The receiver includes an NCV function for non-contact detection of AC voltage. This allows for quick safety checks before working on electrical systems.

Figure 8: NCV non-contact test electric pen function.
6.5. AC/DC Voltage Měření
The transmitter has an integrated voltmeter function to measure AC/DC voltages from 12V to 400V. Connect the test leads to the circuit to display the voltage on the transmitter's LCD.

Figure 9: Measuring AC/DC voltage with the NF-826 transmitter.
6.6. Adjustable Sensitivity and Other Features
- Nastavení citlivosti: The receiver's sensitivity can be adjusted manually or automatically to optimize detection for different depths and environments.
- Tichý mód: Use silent mode for discreet operation.
- Podsvícení: The display backlight improves visibility in low-light conditions.
- Integrovaná LED svítilna: Both the transmitter and receiver have an integrated LED flashlight for illuminating work areas.
- Automatické vypnutí: The device automatically shuts down after 10 minutes of inactivity to conserve battery life.

Figure 10: Flashlight feature for low-light conditions.
6.7. Important Note on Wire Types
The performance of the NF-826 can vary depending on the type of wire being traced:
- Single Strand Wire: The product works effectively.
- Double Strand Wire: The product will work, but you may need to try another line if a breakpoint is not found on one line.
- Multistrand Wire: The product may not work effectively.

Figure 11: Wire type compatibility for tracing.
7. Aplikace
The NOYAFA NF-826 is suitable for a wide range of professional and DIY applications, including:
- Locating electrical cables, buried wires, and water/gas pipes.
- Identifying open circuits or short circuits.
- Finding hidden sockets and junction boxes.
- Tracing electric floor heating systems.
- Installation and maintenance of low-voltage elektrické systémy.
- Communication lines, computer networks, and telephone systems.
- Tracing pet fence wires and garden irrigation lines.

Figure 12: Diverse applications of the NF-826.
8. Údržba
- Čištění: Zařízení otřete měkkým, suchým hadříkem. Nepoužívejte abrazivní čisticí prostředky ani rozpouštědla.
- Péče o baterie: Recharge the batteries regularly, especially if the device will not be used for an extended period, to maintain battery health.
- Skladování: Store the device in its carrying bag in a cool, dry place, away from direct sunlight and extreme temperatures.
9. Řešení problémů
| Problém | Možná příčina | Řešení |
|---|---|---|
| Přijímač nezachytil žádný signál. | Transmitter not powered on, low battery, poor connection, signal too weak, cable too deep. | Ensure both units are on and charged. Check connections. Increase transmitter signal level. Adjust receiver sensitivity. |
| Inaccurate localization. | High interference from other metallic objects, incorrect sensitivity setting, multiple cables in close proximity. | Reduce receiver sensitivity for finer tuning. Try tracing from different points. Ensure no large metallic objects are interfering. |
| Zařízení se nezapne. | Slabá nebo vybitá baterie. | Zařízení plně nabijte pomocí kabelu USB. |
| Transmitter auto-test fails. | Internal fault or connection issue. | Ensure test leads are correctly connected. If issue persists, contact support. |
10. Specifikace
| Funkce | Detail |
|---|---|
| Značka | NOYAFA |
| Model | NF-826 |
| Zdroj napájení | Battery powered (Built-in 1400mAh Lithium Battery) |
| Styl | Digitální |
| Barva | Černý |
| Rozměry (D x Š x V) | 45 x 33 x 120 milimetrů |
| Min. provozní objtage | 12 voltů |
| Max. provozní objtage | 400 voltů |
| Typ měření | Voltmeter (AC/DC) |
| Vyhovující specifikace | CE, CSA, EMC, EN 61010-1, ETL, IEC 1010, IEC 61010-1:2000-1, IP 67, ISO 9001, NIST, REACH, RoHS, TIA, UL |
| Komponenty v ceně | Receiver, Transmitter, and accessories |
11. Záruka a podpora
Informace o záruce a technickou podporu získáte od oficiálního zástupce NOYAFA. webnebo se obraťte na místního distributora. Uschovejte si účtenku jako doklad o koupi pro případ reklamace.