Mô tả sản phẩm: YSI 6920DW
YSI 6920DW Sonde Specifications
| Temperature | Operating | -5 to +45°C |
| Communications | RS-232, SDI-12 | |
| Software | EcoWatch® | |
| Memory | 150,000 data points | |
| Available Sensors | Free Chlorine, Conductivity, ORP, pH, Temperature, Turbidity | |
| Dimensions | Diameter Length Weight |
2.9 in, 7.4 cm 18.25 in, 46.4 cm 3.74 lbs, 1.7 kg with sensors |
| Power | External Internal |
12 V DC 8 AA-size alkaline batteries |
| Battery life | Approx. 25 to 30 days at 20˚C with a 15-min logging interval, 40-sec Cl2 warm-up, and turbidity (or Chl or Rhodamine or BGA) active | |
YSI 6920DW Sensor Specifications
| Range | Resolution | Accuracy | ||
| Free Chlorine | 0 to 3 mg/L | 0.01 mg/L | ±15% of reading or 0.05 mg/L, whichever is greater* | |
| Conductivity• 6560 Sensor•• |
0 to 100 mS/cm | 0.001 to 0.1 mS/cm (range dependent) |
±0.5% of reading + 0.001 mS/cm | |
| Salinity | 0 to 70 ppt | 0.01 ppt | ±1% of reading or 0.1 ppt, whichever is greater |
|
| Temperature 6560 Sensor•• |
-5 to +50°C | 0.01°C | ±0.15°C | |
| pH 6561 Sensor•• |
0 to 14 units | 0.01 unit | ±0.2 unit | |
| ORP | -999 to +999 mV | 0.1 mV | ±20 mV | |
| Turbidity• 6136 Sensor* |
0 to 1,000 NTU | 0.1 NTU | ±2% of reading or 0.3 NTU, whichever is greater** |
|
| Chlorophyll | 0 to 400 ug/L Chl; 0-100% FS | 0.1 ug/L Chl; 0.1% FS | - | |
| Rhodamine WT | 0 to 200 ug/L Rh. | 0.1 ug/L Rh. | ±5% of reading or 1 ug/L, whichever is greater |
|
| Nitrate-Nitrogen | 0 to 200 mg/L-N | 0.001 mg/L-N to 1 mg/L-N | ±10% of reading or 2 mg/L, whichever is greater |
|
| Ammonium-Nitrogen | 0 to 200 mg/L-N | 0.001 mg/L-N to 1 mg/L-N | ±10% of reading or 2 mg/L, whichever is greater |
|
| Chloride | 0 to 1000 mg/L | 0.001 mg/L to 1 mg/L | ±15% of reading or 5 mg/L, whichever is greater |
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