The DT-GWJ-4 Intelligent Particle Detector is a high-performance instrument designed for the detection of insoluble particles in injectable solutions. It uses laser technology and features a touch screen interface with seven-channel detection capabilities, meeting the requirements of the Chinese Pharmacopoeia 2005 edition. This device is ideal for testing contaminated injections, filtered infusions, anesthesia equipment, and drug packaging, as well as analyzing particle size in liquids and solid powders across industries such as petrochemicals and metallurgy.
**Applications:**
1. Detection of insoluble particles in injections (including intravenous and small-volume injections), complying with USP, Chinese, and British standards.
2. Testing for contamination in infusions and filters.
3. Particle size analysis of solid powders in petroleum, chemical, and metallurgical industries.
**Features:**
- Supports various transparent dispersion media, including colorless, colored, and emulsified samples.
- Fast testing: only 20 seconds per test.
- High stability with a unique double-loop light circuit for consistent results.
- Excellent repeatability (CV < 2% for concentrations > 1000 particles/ml).
- User-friendly large LCD touchscreen with full Chinese graphical interface.
- Direct detection of various injection packaging (bottles, vials, pouches).
- Seven-channel detection with a minimum detectable size of 2μm and a wide range of 1–250μm.
- Supports 1ml and 5ml sample volumes for direct quantitative analysis.
- Real-time display of all seven channels, with data analysis and self-diagnostic functions.
- Complies with multiple international standards, including pharmacopoeias and infusion regulations.
- Automatic sampling head descent and closed detection chamber to prevent dust contamination.
- No external syringe required; automatic recoil function.
- Open drainage system for easy waste disposal without frequent cleaning.
- Standard serial port for computer connectivity and long-term data storage.
**Technical Specifications:**
- Measuring range: 1–250μm
- Channel options: Custom channel 1 (≥2μm, ≥5μm, ..., ≥35μm); Custom channel 2 (≥4μm, ≥6μm, ..., ≥35μm); Pharmaceutical channel (≥10μm, ≥25μm); Infusion channel (15–25μm, ≥25μm, 20μm)
- Number of measurements: <10,000 / ml (5ml sample), 60,000 / ml (1ml sample)
- Best measurement concentration: <10,000 / ml
- Sampling capacity: 1ml, 5ml, 100ml ±3% cumulative sampling
- Measuring time: <3 seconds (1ml), <15 seconds (5ml), <10 minutes (100ml)
- Repeatability accuracy: Better than ±2% (for >1000 particles/ml)
- Operating voltage: 220V ±10%, 50Hz
- Ambient temperature: 10°C ~ 40°C
This advanced particle detector is an essential tool for quality control in pharmaceutical, medical, and industrial settings, ensuring accurate and reliable particle analysis. The device's intuitive design, combined with its powerful detection capabilities, makes it a top choice for laboratories and production facilities worldwide.
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