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The 6920 V2-2 has:
- 2 optical ports
- Conductivity/temperature port
- pH or pH/ORP port
- ISE port
| General Sonde Specifications | |
|---|---|
| Medium | Fresh, sea or polluted water |
| Temperature – Operating | -5 to +50°C |
| Temperature – Storage | -10 to +60°C |
| Communications | RS-232, SDI-12 |
| Software | EcoWatch® |
| Diameter | 2.85 in, 7.24 cm |
| Length | 18 in, 45.7 cm |
| Weight | 4 lbs, 1.8 kg |
| Power – External | 12 V DC |
| Power – Internal | 8 AA-size alkaline batteries |
| Certifications | CE, EU Battery Compliance, FCC, IP-67, WEEE, and MCERTS; Assembled in the USA |
| Sensor Specifications | Range | Resolution | Accuracy |
|---|---|---|---|
| ROX™ Optical Dissolved Oxygen• % Saturation |
0 to 500% | 0.1% | 0 to 200%: ±1% of reading or 1% air saturation, whichever is greater; 200 to 500%: ±15% of reading |
| ROX™ Optical Dissolved Oxygen• mg/L |
0 to 50 mg/L | 0.01 mg/L | 0 to 20 mg/L: ± 0.1 mg/L or 1% of reading, whichever is greater; 20 to 50 mg/L: ±15% of reading |
| 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 |
| Depth – Deep | 0 to 656 ft, 200 m | 0.001 ft, 0.001 m | ±1 ft, ±0.3 m |
| Depth – Medium | 0 to 200 ft, 61 m | 0.001 ft, 0.001 m | ±0.4 ft, ±0.12 m |
| Depth – Shallow | 0 to 30 ft, 9.1 m | 0.001 ft, 0.001 m | ±0.06 ft, ±0.02 m |
| Vented Level | 0 to 30 ft, 9.1 m | 0.001 ft, 0.001 m | ±0.01 ft, 0.003 m |
| Turbidity• 6136 Sensor‡ |
0 to 1,000 NTU | 0.1 NTU | ±2% of reading or 0.3 NTU, whichever is greater** |
| Nitrate / nitrogen••• | 0 to 200 mg/L-N | 0.001 to 1 mg/L-N (range dependent) |
±10% of reading or 2 mg/L, whichever is greater |
| Ammonium / ammonia / nitrogen••• |
0 to 200 mg/L-N | 0.001 to 1 mg/L-N (range dependent) |
±10% of reading or 2 mg/L, whichever is greater |
| Chloride••• | 0 to 1000 mg/L | 0.001 to 1 mg/L (range dependent) |
±15% of reading or 5 mg/L, whichever is greater |
| Rhodamine• | 0-200 μg/L | 0.1 μg/L | ±5% reading or 1 μg/L, whichever is greater |
| Blue-Green Algae Sensor Specifications | Range | Detection Limit | Resolution | Linearity |
|---|---|---|---|---|
| Blue-Green Algae Phycocyanin• |
~0 to 280,000 cells/mL† 0 to 100 RFU |
~220 cells/mL§ | 1 cell/mL 0.1 RFU |
R2 > 0.9999** |
| Blue-Green Algae Phycoerythrin• |
~0 to 200,000 cells/mL† 0 to 100 RFU |
~450 cells/mL§§ | 1 cell/mL 0.1 RFU |
R2 > 0.9999*** |
| Chlorophyll• 6025 Sensor‡ |
~0 to 400 μg/L 0 to 100 RFU |
~0.1 μg/L§§§ | 0.1 μg/L Chl 0.1% RFU |
R2 > 0.9999**** |
• Maximum depth rating for optical probes is 200 feet, 61 m. Turbidity, Rhodamine, Blue-Green Algae (PC & PE) and Chlorophyll are available in a Deep Depth option (0 to 200 m). Anti-fouling optical probes have depth rating of 200 m.
•• Report outputs of specific conductance (conductivity corrected to 25° C), resistivity, and total dissolved solids are also provided. These values are automatically calculated from conductivity according to algorithms found in Standard Methods for the Examination of Water and Wastewater (ed 1989).
••• Freshwater only. Maximum depth rating of 50 feet, 15.2 m. 600 V2-2 has 3 ISE ports; not available on the 6600V2-4.
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