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| Brand | Beifen Sanpu |
|---|---|
| Origin | Beijing, China |
| Manufacturer Type | Direct Manufacturer |
| Country of Origin | China |
| Model | GDYS-101SV |
| Application | Quantitative sulfide analysis in drinking water, surface water, domestic wastewater, and treated effluent |
| Detection Method | Colorimetric (methylene blue method per GB/T 5750.5–2006) |
| Detection Time | ≤10 min |
| Detection Limit | 0.02 mg/L |
| Measurement Range | 0.00–1.00 mg/L |
| Accuracy | ±5% |
| Power Supply | 9 V alkaline battery (operational life ≥40 h) |
| Reagent Format | Single-use, pre-packaged assay kits (50 tests per kit) |
| Included Accessories | Complete set of colorimetric glassware and reagents (50 assays) |
| Brand | Beifen Sanpu |
|---|---|
| Origin | Beijing, China |
| Manufacturer Type | Direct Manufacturer |
| Product Origin | Domestic (China) |
| Model | GDYS-101SE2 |
| Application | Field and Laboratory Quantitative Determination of Chlorine Dioxide in Water Samples |
| Light Source | 520 nm LED |
| Optical Stability | ±0.005 Abs/20 min |
| Detection Limit | 0.02 mg/L |
| Measurement Range | 0.00–3.00 mg/L |
| Measurement Time | 1 minute |
| Accuracy | ±5% |
| Power Supply | DC 9 V battery |
| Auto Power-Off | After 30 minutes idle |
| Battery Status Indicator | Integrated low-battery diagnostic circuit |
| Compliance | GB/T 5750.11–2006 (Standard Method for Examination of Disinfectants in Drinking Water) |
| Brand | Beifen Sanpu |
|---|---|
| Origin | Hebei, China |
| Manufacturer Type | Direct Manufacturer |
| Country of Origin | China |
| Model | SF101 |
| Application | Multi-purpose coulometric moisture determination for liquids, gases, and solids |
| Measurement Principle | Coulometric Karl Fischer titration (电量法) |
| Display | 7-inch color TFT LCD touchscreen with Chinese UI |
| Electrolysis Current Range | 0–400 mA (auto-controlled) |
| Measurement Range | 0.1 µg – 200 mg H₂O (equivalent to 0.1 ppm – 100% w/w) |
| Resolution | 0.1 µg H₂O (0.1 ppm) |
| Accuracy | ≤ ±0.2% for samples ≥1 mg H₂O |
| Data Storage | 256 test records |
| Sample Introduction Modes | Volumetric injection, gravimetric weighing, and dilution-based injection |
| Automatic Unit Conversion | µg H₂O, ppm, % w/w, mg H₂O/L, and mean values |
| Printer | High-speed thermal micro-printer |
| Power Consumption | 60 W |
| Operating Temperature | 5–45 °C |
| Relative Humidity Limit | ≤80% RH |
| Dimensions (W×D×H) | 350 × 230 × 180 mm |
| Weight | 8 kg |
| Brand | Beifen Sanpu |
|---|---|
| Origin | Beijing, China |
| Manufacturer Type | Direct Manufacturer |
| Country of Origin | China |
| Model | GDYS-101SQ2 |
| Application | On-site quantitative determination of Chemical Oxygen Demand (COD) in industrial wastewater |
| Measurement Principle | Sealed reflux digestion coupled with colorimetric detection per GB 11914–1989 |
| Detection Time | 20 min per sample |
| Power Supply | 9 V alkaline battery (up to 40 h continuous operation) |
| Detection Limit | 30 mg/L |
| Range | 0–300 mg/L |
| Accuracy | ±5% |
| Kit Includes | 1 set of colorimetric apparatus, 1 set of sample pretreatment tools, and 1 reagent kit (50 determinations) |
| Brand | Beifen Sanpu |
|---|---|
| Origin | Beijing, China |
| Manufacturer Type | Direct Manufacturer |
| Product Origin | Domestic (China) |
| Model | GDYS-101SN |
| Application | Field-deployable photometric analyzer for residual and total chlorine in water |
| Detection Method | DPD colorimetric method per GB/T 5750.11–2006 |
| Detection Time | ≤3 min |
| Detection Range | 0.00–9.99 mg/L Cl₂ |
| LOD | 0.10 mg/L |
| Accuracy | ±5% of reading |
| Power Supply | 9 V alkaline battery (≥40 h continuous operation) |
| Reagent Format | Single-use, pre-packaged DPD reagent kits (50 tests per kit) |
| Included Accessories | Complete set of calibrated colorimetric cuvettes and reagents (50 tests) |
| Brand | Beifen Sanpu |
|---|---|
| Origin | Beijing, China |
| Manufacturer Type | Direct Manufacturer |
| Product Origin | Domestic (China) |
| Model | GDYS-101SN2 |
| Application | Quantitative residual chlorine analysis in water samples |
| Detection Method | DPD colorimetric method per GB/T 5750.11–2006 |
| Detection Time | ≤3 minutes |
| Detection Range | 0.00–5.00 mg/L |
| Lower Detection Limit | 0.05 mg/L |
| Accuracy | ±5% of reading |
| Power Supply | 9 V alkaline battery (operating life: ≥40 hours) |
| Reagent Format | Single-use, pre-packaged DPD reagent kits (50 tests per kit) |
| Accessories Included | Complete set of calibrated colorimetric cuvettes and reagents (50 tests) |
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