3NH Spectrophotometer ST70

3NH ST70 Spectrophotometer

The 3NH ST70 Spectrophotometer is a professional-grade instrument developed based on the core technology of the 3NH TS series. Equipped with five interchangeable measuring apertures and an advanced flat grating optical system, it offers highly accurate color measurement and quality control across diverse materials and industries. The ST70 is ideal for laboratory and industrial use, supporting both standard and fluorescent sample evaluation with excellent precision.

Features

1. Includes 5 measuring apertures (MAV, SAV, LAV) for versatile application across different sample types, including very small or irregular surfaces.

2. Adopts a flat grating spectrophotometric mode with a double-row 32-group silicon photodiode array sensor for stable and accurate results.

3. Uses a combined full-spectrum LED and UV light source, enhancing performance on fluorescent and non-fluorescent samples alike.

4. Fast measurement time (approx. 1.5s) with high repeatability, ensuring consistency in repeated or comparative readings.

5. Advanced data output including chromaticity graphs, color difference values, PASS/FAIL result, and simulated color offsets.

6. Equipped with a built-in camera locating system and stabilizer cross for precise sample targeting.

Applications

1. Color inspection and quality control in plastics, paint, and electronic components manufacturing.

2. Dyeing, printing, and textile evaluation for accurate color consistency across production batches.

3. Printing and packaging color standardization for inks and substrates.

4. Ceramic and pigment assessment for formulation and shade matching.

5. Laboratory research involving complex color analysis and colorimetric index calculation.

6. Fluorescent material color measurement with UV lighting compatibility.

Specifications

1. Optical system: Flat grating spectrophotometric mode; integrating sphere size Φ40 mm; wavelength range 360–780 nm; interval 10 nm.

2. Sensor: Silicon photodiode array (double row, 32 groups); reflectance range 0–200%.

3. Measuring aperture: MAV: Φ8mm/Φ10mm; SAV: Φ4mm/Φ5mm; LAV: 1×3mm – suitable for a wide range of sample sizes and geometries.

4. Measurement modes: Single or average (2–99 times); measuring time approx. 1.5 seconds; resolution 0.01.

5. Repeatability: Chromaticity value ΔE*ab ≤ 0.02; spectral reflectance standard deviation ≤ 0.08% (400–700 nm ≤ 0.18%).

6. Inter-instrument error: MAV/SCI ΔE*ab ≤ 0.15 (based on BCRA Series II tile comparison).