6920 V2 Multiparameter Water Quality Sonde

Real-time turbidity monitoring, dissolved oxygen monitoring, algae monitoring, and more

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)
Category:

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.

6-Series Multiparameter Water Quality Sondes Catalog

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Water Monitoring Solutions

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