Haileong
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| Brand | Haileong |
|---|---|
| Origin | Shanghai, China |
| Manufacturer Type | Authorized Distributor |
| Country of Origin | China |
| Model | HLH-500II |
| Price Range | USD 1,400–2,800 (FOB Shanghai) |
| Hydrogen Generation Principle | PEM-free Alkaline Electrolysis of Deionized Water |
| Output Flow Rate | 0–500 mL/min |
| Output Pressure | 0–0.4 MPa (factory-set at 0.3 MPa) |
| Hydrogen Purity | 99.999% (v/v, measured by online thermal conductivity detection) |
| Power Consumption | 200 W |
| Pressure Stability Accuracy | < 0.0001 MPa |
| Electrolyte | KOH solution (single-fill design, replenishment only with distilled/deionized water) |
| Gas Path Material | Electropolished 316L stainless steel tubing, ultrasonically cleaned |
| Safety Features | Dual-stage overpressure cutoff, anti-backflow valve, real-time leak monitoring |
| Warranty | 1-year full system |
| Brand | Haileong |
|---|---|
| Model | UV-2204 |
| Optical System | Double-beam |
| Detector | Photomultiplier Tube (PMT) |
| Wavelength Range | 200–1000 nm |
| Spectral Bandwidth | 4 nm |
| Wavelength Accuracy | ±1 nm |
| Wavelength Repeatability | ±0.3 nm |
| Photometric Accuracy | ±0.3% T |
| Photometric Repeatability | ≤0.2% T |
| Stray Light | ≤0.2% T @ 220 nm & 360 nm |
| Baseline Stability | ±0.002 A/h @ 500 nm |
| Display Resolution | 0.1 nm |
| Measurement Modes | Transmittance (T), Absorbance (A), Concentration (C), Factor (F) |
| Light Sources | Imported Deuterium Lamp & Tungsten-Halogen Lamp (Auto-Switching) |
| Monochromator | Czerny-Turner (CT) Type |
| Interface | USB 2.0 |
| Sample Compartment | Accommodates Cuvettes from 5 mm to 100 mm Pathlength |
| Power Supply | AC 90–240 V, 50 Hz |
| Dimensions | 470 × 370 × 200 mm |
| Weight | 13 kg |
| Brand | Haileong |
|---|---|
| Origin | Shanghai, China |
| Instrument Type | Dual-beam UV-Vis spectrophotometer |
| Detector | Photomultiplier tube (PMT) |
| Wavelength Range | 190–1100 nm (UV1801/UV1800PC/TU1810), 325–1100 nm (UV1600PC-V7) |
| Spectral Bandwidth | 1 nm (UV1801), 1.8 nm (UV1800PC/TU1810), 4 nm (UV1600PC-V7) |
| Wavelength Accuracy | ±0.3 nm (UV1801), ±0.5 nm (others) |
| Wavelength Repeatability | 0.1–0.2 nm |
| Stray Light | ≤0.05% T at 220 nm and 360 nm |
| Photometric Accuracy | ≤±0.3% T (0–100% T), ±0.002 A (0–0.5 A), ±0.004 A (0.5–1 A) |
| Photometric Repeatability | ≤±0.15% T (0–100% T), ±0.001 A (0–0.5 A), ±0.002 A (0.5–1 A) |
| Baseline Flatness | ±0.002 A |
| Drift | ±0.001–0.002 A/h at 500 nm |
| Optical Design | Czerny-Turner monochromator with 1200 lines/mm grating |
| Light Sources | Deuterium lamp (D₂) and tungsten-halogen lamp (W) with automatic switching |
| Sample Compartment | Accommodates cuvettes from 5 mm to 100 mm pathlength |
| Data Interface | USB port for data export |
| Display | LCD screen |
| Power Supply | AC 90–240 V, 50 Hz |
| Dimensions | 470 × 370 × 240 mm |
| Weight | 13 kg |