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| Brand | Lohand |
|---|---|
| Origin | Beijing, China |
| Manufacturer Type | Original Equipment Manufacturer (OEM) |
| Product Category | Domestic |
| Model | LH-TN360 |
| Measurement Parameter | Total Nitrogen (TN) |
| Instrument Type | Benchtop Laboratory Analyzer |
| Measurement Principle | UV Spectrophotometry after Alkaline Potassium Persulfate Digestion |
| Measurement Range | 0–100 mg/L as N |
| Accuracy | ≤ ±5% |
| Display | 7-inch Color TFT LCD with Optional Chinese/English UI |
| Data Storage | 5000 Sample Records with Power-Fail Protection |
| Calibration Curves | 25 Preloaded (20 Standard + 5 User-Fit) |
| Connectivity | USB 2.0, Infrared Interface, Optional Thermal Printer Support |
| Compliance | HJ 636–2012 |
| Brand | Lianhua Tech |
|---|---|
| Origin | Beijing, China |
| Manufacturer Type | Direct Manufacturer |
| Product Origin | Domestic (China) |
| Model | 5B-6P(V10) |
| Measurement Parameter | Total Phosphorus |
| Instrument Type | Laboratory Benchtop Analyzer |
| Measurement Principle | Spectrophotometry (Molybdenum Blue Method) |
| Measurement Range | 0–100 mg/L as P |
| Accuracy | ≤ ±5% of reading |
| Display | 5.6-inch color touchscreen interface |
| Data Storage Capacity | 12,000 measurement records |
| Data Output | USB port, infrared wireless transfer, built-in thermal printer |
| Calibration | Automated standard curve generation and storage using user-provided reference standards |
| Curve Fitting | User-definable polynomial or linear calibration curve fitting |
| Sample Formats | Cuvette-based (10 mm pathlength) and tube-based (16 mm diameter) measurement modes |
| Reagent Compatibility | Pre-formulated high-range and low-range total phosphorus reagent kits (acid digestion + molybdate-ascorbic acid color development) |
| Brand | Lianhua Tech |
|---|---|
| Origin | Beijing, China |
| Manufacturer Type | Direct Manufacturer |
| Product Origin | Domestic (China) |
| Model | LH-T3TP |
| Measurement Parameter | Total Phosphorus |
| Instrument Type | Laboratory Benchtop Analyzer |
| Measurement Principle | Spectrophotometry (Molybdenum Blue Method per GB 11893–1989) |
| Measurement Range | 0–12 mg/L (multi-segment calibration) |
| Accuracy | ±8% FS (Full Scale) |
| Display | 3.5-inch TFT color LCD with analog-style UI |
| Light Source | Cold LED with narrow-band interference filter (rated lifetime ≥100,000 hours) |
| Sample Holders | Compatible with φ16 mm round cuvettes and 30 mm square cuvettes |
| Calibration Options | 15 pre-programmed calibration curves across 3 operating modes |
| Data Storage | 5,000 measurement records with timestamp and result value |
| Included Accessory | LH-A109 9-position digital digestion block (pre-configured for phosphorus digestion per standard protocols) |
| Brand | Lianhua Technology |
|---|---|
| Origin | Beijing, China |
| Manufacturer Type | Manufacturer |
| Product Origin | Domestic (China) |
| Model | LH-P3TP |
| Measurement Parameter | Total Phosphorus |
| Instrument Type | Portable |
| Measurement Principle | Spectrophotometry (Molybdenum Blue Method) |
| Measurement Range | 0–100 mg/L as P |
| Accuracy | ≤ ±8% |
| Display | 3.5-inch color TFT LCD with dial-style UI |
| Built-in Calibration Curves | 20 pre-programmed curves with user calibration capability |
| Optical Calibration Support | Yes, for LED intensity stabilization |
| Over-range Indication | Visual red alert on dial interface |
| Reagent Compatibility | Pre-formulated liquid reagent kits supplied by Lianhua Technology |
| Compliance | Designed to meet standard requirements of HJ 670–2013 (Chinese EPA method for total phosphorus in water), compatible with ISO 6878:2004 and ASTM D515-89 (revised) |
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