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| Brand | KRK |
|---|---|
| Origin | Japan |
| Model | SS-10Z |
| Measurement Principle | Near-Infrared Transmission Photometry + Semiconductor Pressure Sensing |
| MLSS Range | 0–20,000 mg/L (display up to 30,000 mg/L) |
| Interface Depth Range | 0–5.00 m (extendable to 10.00 m with optional cable) |
| Resolution | MLSS: 10 mg/L (0–10,000 mg/L), 100 mg/L (10,000–30,000 mg/L) |
| Depth | 0.01 m |
| Accuracy | MLSS: ±2% of reading (≤5,000 mg/L) or ±150 mg/L |
| Depth | ±0.03 m |
| Repeatability | Verified under controlled lab conditions per JIS Z 8015 |
| Calibration Options | 1-point (zero), 2-point (zero/span), or 3–4-point multi-concentration calibration |
| IP Rating | IP67 |
| Power | 3× AA alkaline batteries (LR03), auto-off after 30 min |
| Detector Type | SSD-10Z integrated optical-pressure probe |
| Cable | Standard 6 m (max. 11 m) |
| Weight | Instrument body: ~300 g |
| Detector assembly | 550 g (incl. cable) |
| Compliance | Designed for use in wastewater treatment plants operating under ISO 5667-16, ASTM D3693, and JIS K 0102 environmental testing frameworks |
| Brand | Rikuri Chemical |
|---|---|
| Origin | Japan |
| Model | F-10Z |
| Measurement Principle | Solid-State Lanthanum Fluoride (LaF₃) Crystal Membrane Ion-Selective Electrode (ISE) |
| Range | 0–1999 mg/L F⁻ |
| mV Output Range | −1000 to +1000 mV |
| Resolution | 0.1 mg/L (0.1–99.9 mg/L), 1 mg/L (100–1999 mg/L) |
| Accuracy | ±5% of Full Scale (FS) |
| Display | 3½-digit LCD |
| Temperature Compensation | Automatic (NTC thermistor integrated) |
| Response Time (t₉₀) | ≤60 s |
| Ingress Protection | IP67 |
| Power Supply | DC 4.5 V (3 × AA alkaline batteries) |
| Dimensions (W×H×D) | 70 × 36 × 170 mm |
| Weight | Approx. 290 g (instrument only) |
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