Instrument Expert
Original factory packaging
Service Hotline：
(+86)010-52867771
Instrument Expert
Original factory packaging
Service Hotline：
(+86)010-52867771
Updated:2025-03-13
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User's Manual
The V2 sondes represent a proven generation of multi-parameter sondes from YSI. Perfect for harsh fouling environments, YSI's optical sensors feature an integrated wiper that prevents the impacts of biofouling, a corrosion-resistant titanium wiper shaft, and replaceable seals.
The YSI 6920 V2-2 sonde features an internal battery pack with memory for long-term, unattended deployments. Additionally, the sonde can be powered by a 650 display unit for spot sampling applications.
Features:
Internal battery pack & memory for long-term, unattended deployments
All sensors are field-replaceable, and optical sensors feature self-cleaning wipers
Compatible with real-time data logging systems
The YSI 6920 V2-2 has the following available ports:
(1) Temperature/Conductivity
(1) pH or pH/ORP
(1) ISE (Nitrate, Ammonium, and Chloride)
(2) Optical (Dissolved Oxygen, Turbidity, Chlorophyll, Blue-Green Algae, and/or Rhodamine)
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**** |
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