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| Brand | LabTech |
|---|---|
| Origin | Beijing, China |
| Product Line | ED and EHD Series |
| Instrument Type | Electric Heating Digestion System |
| Automation Level | Semi-Automatic |
| Sample Capacity | Up to 77 positions |
| Maximum Sample Mass | ≥5 g per vessel |
| Heating Technology | Surround-Heating Graphite Block with PID-Controlled Temperature Regulation |
| Thermal Uniformity | ≤±1.5 °C across block surface |
| Construction | Fully Corrosion-Resistant Enclosure with High-Temperature Anti-Corrosion Coated Graphite Surface |
| Insulation Material | Imported High-Efficiency Thermal Insulation |
| Energy Efficiency | Optimized thermal retention yielding 2–5× faster digestion vs. conventional hot plates |
| Brand | LabTech |
|---|---|
| Origin | Beijing, China |
| Model | S16/S36 |
| Instrument Type | Electric Heating Digestion System |
| Automation Level | Semi-Automatic |
| Digestion Positions | Configurable (16 or 36) |
| Max Operating Temperature | Up to 220 °C |
| Temperature Control Accuracy | ±0.5 °C @ 100 °C |
| Heating Principle | Uniform Surround-Heating with PID Feedback Control |
| Reagent Channel | Single-tube open-vessel configuration (no integrated reagent dispensing) |
| Safety Features | Dual-stage thermal alarm (visual + audible), 50 °C surface overheat indicator, acid-resistant sealed chassis, optional external solution temperature probe |
| Brand | LabTech |
|---|---|
| Origin | Beijing, China |
| Model | VB77 |
| Instrument Type | Electric Heating Digestion System |
| Automation Level | Semi-Automatic |
| Sample Capacity | 77 positions |
| Tube Format | 16 mm OD borosilicate glass test tubes |
| Heating Method | Surround-type (360° circumferential) resistive heating |
| Temperature Range | Ambient to 180 °C (adjustable in 1 °C increments) |
| Temperature Uniformity | ≤ ±1 °C between wells at 100 °C |
| Temperature Control | Intelligent PID algorithm with real-time feedback and dual-sensor monitoring |
| Timing Function | Programmable timer (1 min – 99 h 59 min) |
| Compliance | Designed to meet WS/T 107.1–2016, GB/T 5750.5–2006, and ASTM D1252 for COD digestion |
| Brand | HACH |
|---|---|
| Origin | Shanghai, China |
| Model | HT200S |
| Digestion Positions | 12 × 20 mm |
| Temperature Range | 40–170 °C |
| Temperature Accuracy | ±1 °C |
| Heating Principle | Electric Resistance Heating |
| Cooling | Integrated Active Air-Cooling System |
| Programmable Methods | 3 Predefined (100 °C, 148 °C, HT) + 9 User-Defined |
| Display | Dual-Line LCD |
| Power Supply | 230 V ±5%/−15%, 50 Hz, 1300 VA |
| Safety Certifications | CE, GS, cTUVus |
| Dimensions (W×D×H) | 330 × 300 × 430 mm |
| Weight | 12 kg |
| Operating Environment | 10–45 °C, ≤90% RH |
| Compliance | EN ISO 6060 (COD), EPA Method 410.4, ASTM D1252 |
| Brand | WTW |
|---|---|
| Origin | Germany |
| Model | CR 2200 |
| Digestion Positions | 12 |
| Max. Heating Temperature | 170 °C |
| Temperature Accuracy | ±1 °C |
| Heating Principle | Electric heating via aluminum alloy heating block |
| Power Supply | 230 VAC 50 Hz ±15% or 115 VAC 60 Hz ±15% |
| Max. Power Consumption | 280 W |
| Safety Certifications | CE, cETLus, GS |
| Dimensions (W×H×D) | 256 × 185 × 315 mm |
| Weight | 2.85 kg |
| Predefined Programs | 5 (100 °C/60 min |
| Auto-Start & Auto-Shutdown | Yes |
| Built-in Safety Shield | Yes |
| Tube Compatibility | 16 mm OD glass or PTFE digestion tubes |
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