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| Brand | Hach |
|---|---|
| Origin | USA |
| Model | TSS Portable |
| Instrument Type | Portable |
| Measurement Principle | Multi-beam alternating infrared photometry with dual-channel 90° scattering (turbidity) and six-channel multi-angle absorbance-corrected detection (suspended solids) |
| Turbidity Range | 0.001–4000 NTU |
| Suspended Solids Range | 0.001–400 g/L (1–400,000 mg/L, upper limit sample-dependent) |
| Turbidity Accuracy | ±3% or ±0.02 NTU (whichever is greater) |
| SS Accuracy | ±4% or ±0.001 g/L (whichever is greater) |
| Turbidity Resolution | 0.001 NTU (0–0.999), 0.01 NTU (1–9.99), 0.1 NTU (10–99.9), 1 NTU (>100) |
| SS Resolution | 0.001 g/L (0–0.999), 0.01 g/L (1–9.99), 0.1 g/L (10–99.9), 1 g/L (>100) |
| Units | NTU, FNU, EBC (turbidity) |
| Calibration | 4 pre-stored SS calibration curves + 1 turbidity curve |
| Bubble Compensation | Real-time software-based bubble interference correction |
| Sensor Material | Electropolished 316 stainless steel housing with scratch-resistant sapphire window |
| Data Storage | 290 measurement records (timestamp, location, value, homogeneity flag) |
| Operating Modes | Single-point, Interval, Continuous |
| Battery | Rechargeable Li-ion |
| Display | Backlit graphical LCD with intuitive menu navigation |
| Compliance | Meets DIN EN ISO 7027 (turbidity), supports ASTM D3852, ISO 13319, and USP <730> for suspended solids quantification in water matrices |
| Brand | Myratek |
|---|---|
| Origin | USA |
| Model | Portable SS Sentry M-2 |
| Instrument Type | Portable |
| Measurement Range | 0–30,000 mg/L (or 0–1,500 mg/L selectable) |
| Accuracy | ±3% of reading or ±20 mg/L, whichever is greater |
| Sensitivity | 1 mg/L (≤1,000 mg/L), 10 mg/L (1,001–9,999 mg/L), 100 mg/L (≥10,000 mg/L) |
| Repeatability | ±0.5% |
| Drift | <1% per year |
| Operating Temperature | 0–65°C |
| Probe Diagnostic | Automatic self-diagnostic |
| Output | RS-232 serial interface |
| Data Storage | 50 records with timestamp |
| Display | UV-resistant graphical LCD with adjustable backlight contrast |
| Sensor Cable Length | 6.0 m |
| Ambient Operating Conditions | –20 to +70°C, 0–100% RH |
| Enclosure Rating | IP66 |
| Housing Materials | Epoxy, polyurethane, PVC |
| Maximum Pressure Rating | 100 PSI |
| Shipping Weight | ~1.8 kg |
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