Standards:

Applications:

Product Information:

Instrument Purpose

This instrument is used to measure the electromagnetic wave protection and shielding performance of textiles, plastic sheets, metal foils, non-conductive material coatings or plating, metal meshes, etc. thereby providing a comprehensive evaluation of the electromagnetic radiation protection effectiveness of textiles.

Applicable Standards

GB/T 25471. GB/T 23326. QJ2809. SJ20524. and other relevant standards.

Technical Specifications

Frequency Range: Shielded box: 300 kHz – 30 MHz; Coaxial flange: 30 MHz – 3 GHz.

Signal Source Output Level: -45 to +10 dBm.

Signal Purity: ≤ -65 dBc/Hz.

Harmonic Suppression Ratio: ≥30 dB (1 MHz – 3000 MHz), ≥25 dB (300 kHz – 1 MHz).

Power Scan: -8 dBm – +5 dBm.

Dynamic Range: >95 dB.

Frequency Stability: ≤ ±5x10-6.

Linear Scale: 1 μV/DIV – 10 V/DIV.

Frequency Resolution: 1 Hz.

Receiver Power Resolution: 0.01 dB.

Characteristic Impedance: 50 Ω.

Voltage Standing Wave Ratio (VSWR): <1.2.

Transmission Loss: <1 dB.

Phase Resolution: 0.01°.

Sample Dimensions:

Coaxial Flange Method: Diameter 180–200 mm or square side 180–200 mm; thickness ≤5 mm.

Shielded Box Method: Diameter 180–200 mm; thickness ≤5 mm.

Power Supply: 50 Hz, AC 220 V, 113 W.

Overall Dimensions: 1120 mm × 560 mm × 1670 mm.

Overall Weight: Net weight 300 kg.

Product Features

Testing Methods: Coaxial flange method and shielded box method; two testing methods that can be switched quickly.

Metal Shielding Device: Equipped with a metal shielding device with an observation window.

Clamping Method: Pneumatic operation for convenience and speed, minimizing differences in test results caused by varying manual pressure.

Guide Rails: Imported guide rails ensure precise alignment of conductor clamps.

Shielded Box Method: Samples can be tested simply by laying them on the drawer.

Shielded Box Material: Made of SUS304 stainless steel, corrosion-resistant and rust-free.

Coaxial Flange Conductors: Made of high-quality alloy steel with nickel plating for durability.

Spare Coaxial Flanges: Comes with two sets for easy and quick replacement.

High-Precision Network Analyzer: Multi-channel detection circuits.

Data Output: Test data and graphs can be printed via the connected software.

Communication Interface: Can connect to a PC for dynamic waveform display. Dedicated test software can eliminate system errors through normalization functionality.

SCPI Command Set: Provided for software secondary development support.

Frequency Sweep Points: Adjustable up to 1601 points.

Configuration List

Main Unit — 1 set

Shielded Box — 1 unit (optional)

Brand PC — 1 set; connection CD and data cable

Coaxial Shielded Cables — 2 pieces; two sets of coaxial flanges

Sampling Tools — Circular: 133.1 mm, 76.2 mm, 33.1 mm, 66.5 mm, 38.1 mm, 16.5 mm; Square: 260 mm × 260 mm; or optional sampling templates

Certificate of Conformity — 1 copy

Product Manual — 1 copy

Delivery Note — 1 copy

Acceptance Form — 1 copy

Product Brochure — 1 copy