1. Introduction
The NOYAFA NF-825TMR is a versatile 6-in-1 electrical kit designed for comprehensive circuit tracing and testing. This multifunction device includes a transmitter, a receiver, and an outlet tester, enabling users to trace circuits and electric wires, locate circuit breakers, detect wiring faults, test outlets, find network cables, and detect voltage. It is an essential tool for professionals and DIY enthusiasts alike, offering precision and safety in various electrical tasks.
Image: The NOYAFA NF-825TMR Transmitter and Receiver units.
2. Safety Information
- Always read and understand this manual before operating the device.
- Do not use the device if it appears damaged or is not functioning correctly.
- Ensure proper insulation and personal protective equipment (PPE) when working with live circuits.
- Never attempt to open or modify the device. Refer all servicing to qualified personnel.
- Keep the device away from water and extreme temperatures.
- Use only the provided accessories and charging cable.
3. Package Contents
Upon opening the package, please verify that all the following items are included:
- Transmitter (1 pc)
- Receiver (1 pc)
- User Manual (1 pc)
- 825TMR Box (1 pc)
- 825TMR Kit (1 pc)
- Multimeter Adapter Cable (1 pc)
- Alligator Clip (1 pc)
- Exclusive Accessory Cable (1 pc)
- Type-C Charging Cable (1 pc)
- Quality Certificate (1 pc)
Image: The product box displaying the list of included accessories.
4. Product Overview
The NF-825TMR consists of three main components: the Transmitter (NF-825T), the Receiver (NF-825R), and the Socket Test unit (NF-825M). Familiarize yourself with the buttons, ports, and indicators on each unit.
Image: Detailed diagram illustrating the buttons and ports on the Transmitter, Receiver, and Socket Test unit.
Transmitter (NF-825T)
- Power Button: Turns the unit on/off.
- Scan/Live/Off Switch: Selects operating mode for tracing.
- Light Indicator: Shows power status and signal.
- Type-C Charging Port: For charging the internal battery.
- Network Cable Tracking Port (RJ45): For connecting network cables.
- Positive/Negative Electrodes: For connecting alligator clips.
Receiver (NF-825R)
- Power Button: Turns the unit on/off.
- Sensitivity Switch: Adjusts signal sensitivity (0-9).
- Signal Indicator: LED lights (1-3) indicate signal strength.
- Power Indicator: Shows power status.
- SCAN Button: Initiates scanning mode.
- Socket Button: Activates socket test mode.
- NCV Button: Activates Non-Contact Voltage detection.
- Lighting Switch: Turns the LED light on/off.
- Probe: For detecting signals and voltage.
- Type-C Charging Port: For charging the internal battery.
Socket Test Unit (NF-825M)
- 3-pin Power Plug: For connecting to standard outlets.
- GFCI Button: Tests Ground Fault Circuit Interrupter functionality.
- Indicators: LEDs show wiring status (Correct, Open Ground, Open Neutral, Open Hot, Live/NEU Rev, Live/GRD Rev, Open GRD).
5. Setup
5.1 Charging the Device
Both the Transmitter and Receiver units are powered by a 7.4V 700mA lithium battery and feature a Type-C charging port. To charge:
- Connect the provided Type-C charging cable to the charging port on the Transmitter and/or Receiver.
- Plug the other end of the cable into a DC 5V 1A power adapter (not included).
- The power indicator will show charging status. Ensure both units are fully charged before use for optimal performance.
Image: Illustration of the Type-C charging process for the Transmitter and Receiver.
6. Operating Instructions
6.1 Circuit Tracing (Live/Energized or Open/De-energized)
The NF-825TMR can trace live (energized) or open (de-energized) circuits, conduits, pipes, and single wires within a bundle. The probe and tone generator provide precise indications through various materials.
- For Live Circuits: Connect the Transmitter to the live circuit using the appropriate adapter cable and alligator clips. Set the Transmitter switch to 'Live'.
- For Open Circuits: Connect the Transmitter to the de-energized circuit. Set the Transmitter switch to 'Scan'.
- Turn on the Receiver and adjust the Sensitivity Switch (0-9) to an appropriate level.
- Move the Receiver's probe along the suspected path of the wire. The signal indicators and audible tone will guide you to the wire's location.
Image: Demonstrating the detection of hidden wires in a live circuit.
6.2 Circuit Breaker Finding
To locate the corresponding circuit breaker for an outlet:
- Plug the Socket Test unit into the desired outlet.
- Turn on the Receiver and set it to 'SCAN' mode.
- Move the Receiver's probe along the circuit breakers in the electrical panel. The Receiver will indicate the correct breaker with a strong signal and audible tone.
Image: Using the NF-825TMR to identify circuit breakers in an electrical panel.
6.3 GFCI Outlet Testing and Wiring Fault Detection
The Socket Test unit can detect common wiring problems and test GFCI receptacles:
- Plug the Socket Test unit directly into the outlet you wish to test.
- Observe the LED indicators on the Socket Test unit. They will illuminate to show the wiring status (e.g., Correct, Open Ground, Open Neutral, Open Hot, Live/NEU Rev, Live/GRD Rev, Open GRD).
- To test GFCI functionality, press the 'GFCI' button on the Socket Test unit. A working GFCI should trip, cutting power to the outlet.
Image: Performing a socket test and GFCI check with the NF-825TMR.
6.4 Network Cable Tracing (RJ45)
To locate network cables (CAT5/CAT6) with the Transmitter and Receiver:
- Set the Transmitter switch to 'SCAN' mode.
- Insert one end of the RJ45 network cable into the tracking port on the Transmitter.
- Turn on the Receiver and adjust sensitivity.
- Use the Receiver's probe to trace the network cable. The signal strength will increase as you approach the target cable.
Image: Using the Transmitter to locate a network cable.
Image: Tracing a network cable connected to a PoE switch.
6.5 NCV (Non-Contact Voltage) Detection
The Receiver's probe can detect AC voltage without direct contact:
- Turn on the Receiver.
- Press the 'NCV' button to activate NCV mode.
- Bring the probe close to the object or wire you suspect carries voltage. The signal indicators and audible tone will activate if voltage is detected.
Image: Using the NCV Induction Pen feature to detect voltage.
6.6 LED Lighting
The Receiver is equipped with an LED light for improved visibility in low-light conditions:
- Press the 'Lighting Switch' button on the Receiver to turn the LED light on or off.
Image: The Receiver's LED light illuminating a dark area.
6.7 Sensitivity Adjustment
The Receiver features a sensitivity switch to optimize detection based on the environment:
- Rotate the Sensitivity Switch (labeled 0-9) on the Receiver to increase or decrease the detection sensitivity. Adjust as needed to filter out interference or detect weaker signals.
Image: Diagram illustrating the Sensitivity Switch on the Receiver.
7. Maintenance
- Cleaning: Wipe the device with a dry, soft cloth. Do not use abrasive cleaners or solvents.
- Storage: Store the device in a cool, dry place, away from direct sunlight and extreme temperatures. Ensure the device is fully charged before long-term storage.
- Battery: The device uses a rechargeable lithium battery. If the device will not be used for an extended period, charge it periodically to maintain battery health.
8. Troubleshooting
- Device not turning on: Ensure the battery is charged. Connect to a Type-C charger and try again.
- No signal detected during tracing: Check that the Transmitter is correctly connected and in the appropriate mode (Scan/Live). Adjust the Receiver's sensitivity. Ensure the circuit is active if tracing a live circuit.
- Inaccurate readings: Ensure there is no strong electromagnetic interference nearby. Re-calibrate by moving away from potential interference sources and re-testing.
- Socket Test indicators not lighting up: Ensure the outlet has power. Check the Socket Test unit for any visible damage.
9. Specifications
| Feature | Parameter |
|---|---|
| Product Model | NF-825TMR |
| Trace AC Power Cable | Trace Power Voltage Range: AC 90V~250V |
| Interface Type: Alligator clip | |
| Transmitter Distance: 200m | |
| Transmitter Frequency: 157KHz | |
| Detecting Depth | 0~0.5m |
| Cable Type | CAT5 / CAT6 |
| Network Cable Testing | Network Interface Type: RJ45 |
| Transmitter Frequency: 455KHz | |
| Transmitter Distance: 600m | |
| Air Circuit Breaker Tracking | Transmitter Distance: 600m |
| Detecting Depth: 2~3cm | |
| Socket Cable Sequence Test | Testing Voltage Range: AC 90V~250V, 50/60Hz |
| NCV Detecting | AC 90V~1000V, 50/60Hz |
| LED Lamp | Yes |
| Power Supply | 7.4V 700mA Lithium Battery |
| Power Adapter Spec | DC 5V/1A Type-C |
| Working Temperature | 0~122°F (0~50°C) |
| Working Humidity | ≤90% non-condensing |
| Storage Temperature | 14~122°F (-10~50°C) |
| Transmitter Size | 72 X 34 X 148mm |
| Receiver Size | 40 X 34 X 205mm |
Image: Detailed product parameter table for the NF-825TMR.
10. User Tips
- For best results when tracing wires, ensure the area is free from excessive electromagnetic interference from other active devices.
- When using the NCV function, approach the suspected voltage source slowly to get an accurate reading and avoid false positives.
- Regularly check the battery levels of both the Transmitter and Receiver to avoid interruptions during critical tasks.
11. Warranty and Support
NOYAFA products are manufactured to high-quality standards. For warranty information, technical support, or service inquiries, please refer to the contact information provided on the product packaging or the official NOYAFA website. Keep your purchase receipt as proof of purchase.
