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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