laboratory fabric negative ion concentration analyzer manufacturer

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Whats/App: +86 156 1874 6768

Web: standard-groups.com

Applications

Functional Textile R&D: Assesses air-purifying, health-enhancing, and antimicrobial fabrics.

Quality Control: Verifies compliance with negative-ion standards for medical textiles, bedding, and apparel.

Certification Laboratories: Provides data for GB/T 30128-2013 certification.

Features

Dual Friction Disc Design:

Upper Static Disc: Diameter 100 ±0.5 mm (fixed).

Lower Dynamic Disc: Diameter 200 ±0.5 mm (rotating at 93 r/min).

Capacitive Ion Sensor: High-sensitivity detection of activated negative ions.

Technical Parameters

Parameter	Specification
Control Mode	Automatic (PLC)
Ion Collection Method	Capacitive Suction (Mobility >0.15 cm²/(V·s))
Measurement Range	Range 1: 0–20.000 units/cm³ Range 2: 0–200.000 units/cm³ Range 3: 0–2.000.000 units/cm³
Resolution	10 units/cm³
Friction Disc Speed	93 ±1 r/min (Adjustable)
Applied Pressure	7.5 ±0.2 N
Test Chamber Size	300 ±2 mm × 560 ±2 mm × 210 ±2 mm
Power Supply	AC 220V ±10%, 50Hz
Dimensions (L×W×H)	600 mm × 620 mm × 520 mm
Net Weight	55 kg

Test Procedures

1. Preparation Stage

Equipment Check

Connect the ground wire to ensure instrument grounding safety;

Confirm power supply stability, turn on the instrument switch, and warm up for 1 minute.

Sample Preparation

Cut the sample according to standard (e.g., A4 size), distinguishing the test surface (usually the skin-contact surface);

Ensure the sample is free of impurities and radioactive material contamination.

2. Parameter Settings

Mode Selection

Select “Negative Ion Detection Mode” on the operation panel;

Set the ion mobility (default ≥0.15 cm²/(V・s), meeting product accuracy requirements).

Range and Pressure Adjustment

Select the range according to the sample type (0-20.000/200.000/2.000.000 units/cm³);

Adjust the test pressure to 7.5±0.2 N (adaptable to different fabric types).

3. Testing Process (Simulated Friction + Ion Detection)

Sample Fixation

Lay the sample flat on the test stage, start the PLC to control the friction disc (rotation speed 93±1 r/min), simulating the friction state in actual use.

Ion Detection

Activate the capacitive attraction ion acquisition module to capture negative ions released during the friction process;

The instrument records the ion concentration in real time and generates a time-varying curve (supporting dynamic analysis).

4. Data Reading and Calibration

Record after reading stabilizes

Wait for the value to stabilize (display fluctuation ≤ ±2), then read the current negative ion concentration;

If "1" is displayed, switch to a higher range.

Calibration (if necessary)

Press and hold the "RE-ZERO" button for 3-5 seconds until the displayed value is between -0.01 and 0.01. then complete the zeroing.

5. End and Data Processing

Stop Testing

Turn off the friction system and remove the sample;

Save the real-time data curve and automatically calculate the average value.

Result Calculation

Repeat the test on 3 groups of samples and take the average value as the final result (unit: ions/cm³);

Data must comply with the requirements of GB/T 30128-2013 standard.

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