NFP-3 - Measurement Rigol - Free user manual and instructions

Product Type	Near Field Probe Set
Brand	Rigol
Model	NFP-3 (includes NFP-3-P1, NFP-3-P2, NFP-3-P3, NFP-3-P4)
Frequency Range	30 MHz to 3 GHz
Terminal Type (Probe)	SMB (M)
Adaptor	N (M) to BNC
RF Cable	BNC (M) to SMB (F), 1000 mm
Impedance	50 Ω
Dimensions (with package)	260 mm × 190 mm × 30 mm
Weight (with package)	0.425 kg
Operating Temperature	0°C to 50°C
Storage Temperature	-20°C to 70°C
Primary Function	EMI near-field magnetic field measurements for electronic components and modules
Measurement Type	Non-contact magnetic field strength and coupling channel testing
Probe Applications	Locating EMI sources, determining frequency and relative strength of interference
Model NFP-3-P1	Magnetic field probe, test range within 10 cm, for locating leakage field
Model NFP-3-P2	Magnetic field probe, test range within 3 cm, for accurate leakage field testing
Model NFP-3-P3	Magnetic field probe, resolution about 5 mm, for testing cable electromagnetic leakage
Model NFP-3-P4	Magnetic field probe, resolution about 2 mm, for vertical magnetic field and PCB wiring EMI
Compatibility	Rigol DSA series spectrum analyzers (requires N-BNC adaptor and BNC-SMB cable)
Clean and Care	Clean with a soft dry cloth; avoid moisture and solvents; store in a dry environment
Safety Precautions	Use ESD precautions; avoid contact with live circuits; do not exceed specified frequency range

Frequently Asked Questions - NFP-3 Rigol

What is the Rigol NFP-3 used for?

The NFP-3 is a near-field probe set used with Rigol DSA series spectrum analyzers for EMI testing. It measures magnetic field strength and coupling channels to locate interference sources.

What models are included in the NFP-3 set?

The NFP-3 includes four models: NFP-3-P1 (10 cm range), NFP-3-P2 (3 cm range), NFP-3-P3 (5 mm resolution), and NFP-3-P4 (2 mm resolution).

What is the frequency range of the NFP-3?

The frequency range is 30 MHz to 3 GHz, suitable for common EMI troubleshooting.

How do I connect the NFP-3 to a spectrum analyzer?

Connect the SMB (M) terminal of the probe to the BNC-SMB cable, then attach the N-BNC adaptor to the cable's BNC end, and finally connect the N (M) adaptor to the RF input of the spectrum analyzer.

Can I use the NFP-3 with any spectrum analyzer?

It is designed for Rigol DSA series analyzers, but can be used with any analyzer that has an N-type RF input (using the included adaptor).

What is the difference between the NFP-3-P1 and NFP-3-P2?

The P1 has a 10 cm test range for general leakage field location, while the P2 has a 3 cm range for more accurate field testing.

How do I clean the NFP-3 probes?

Use a soft dry cloth to wipe the probes. Avoid using liquids, solvents, or abrasive materials to prevent damage.

What safety precautions should I take when using the NFP-3?

Always use ESD (electrostatic discharge) precautions. Do not touch live circuits with the probes. Stay within the specified frequency and temperature ranges.

What is the measurement resolution of the NFP-3-P4?

The NFP-3-P4 has a resolution of about 2 mm, allowing precise measurement of magnetic fields in vertical direction and PCB wiring.

Where can I download the user manual for the NFP-3?

You can download the manual for free from notice-facile.com in PDF format. It contains setup instructions, specifications, and application examples.

USER MANUAL NFP-3 Rigol

NFP-3 is used with RIGOL DSA series spectrum analyzer for the EMI tests of electronic products. It can be used to test the magnetic field strength and magnetic field coupling channels on the surface of the electronic components as well as the magnetic field environment near the electronic module so as to quickly locate the interference source. NFP-3 includes four models (NFP-3-P1, NFP-3-P2, NFP-3-P3 and NFP-3-P4).

Measurement Connections

The connection mode of NFP-3 and spectrum analyzer is as shown in the figure below.

— Connect the spectrum analyzer

Connect the SMB (M) terminal of NFP-3 and the BNC (F) terminal of the N-BNC adaptor respectively via the BNC-SMB RF cable; connect the N (M) terminal of the N-BNC adaptor to the RF input terminal of the spectrum analyzer.

— Connect the device under test

NFP-3 is used to perform short-distance noncontact measurement on the device under test. Pay attention to the direction of the probe during measuring.

Typical Applications

— Locate the EMI radiation interference source.
— Determine the frequency and relative strength of the spectral component of the interference source.

Performance Specifications

Frequency
Frequency Range 30 MHz to 3 GHz

Terminal Type
Terminal Type SMB (M)
Adaptor	N (M)-BNC
RF Cable BNC (M)-SMB (F), 1000 mm
Terminal and Adaptor Impedance 50 Ω

General Specifications
Dimensions 260 mm × 190 mm × 30 mm (with package)
Weight 0.425 kg (with package)
Operating Temperature	0°C to 50°C
Storage Temperature	-20°C to 70°C

User's Guide RIGOL

Model Description
NFP-3-P1	Near field probe for magnetic field measurements. The test range is within 10 cm. It is used to locate the leakage field.
NFP-3-P2	Near field probe for magnetic field measurements. The test range is within 3 cm. It is used to accurately test the leakage field.

User's Guide RIGOL

Model Description
NFP-3-P3	Near field probe for magnetic field measurements. The resolution is about 5 mm. It is used to test the electromagnetic leakage of the cables.
NFP-3-P4	Near field probe for magnetic field measurements. The resolution is about 2 mm. It can test the magnetic field in the vertical direction and the electromagnetic field generated by the PCB wiring.