85
Dissolved Oxygen/Conductivity Instrument
The YSI 85 Instrument offers simultaneous dissolved oxygen, conductivity, salinity and temperature measurement.
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Features
- Automatic function verifies that the system is working
- Automatically compensates DO for salinity variations
- Screw on DO caps reduce time and simplify the membrane changing process
- 50-reading memory improves data transfer and reduces mistakes.
- Autoranging conductivity
- 10, 25, 50 or 100 foot cables
- IP-65 water tight
Please visit our extensive dissolved oxygen resource page to learn about all things DO and BOD related; www.YSI.com/weknowDO
YSI 85 Instrument General Specifications
| Adjustable conductivity reference temperature | 15 to 25°C |
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| Adjustable conductivity temperature compensation factor | 0 to 4% | |
| Altitude compensation | 0 to 10,000 feet | |
| Cables | 10, 25, 50, 100 feet (3, 7.6, 15.2, 30.5 meters), available with detachable cable | |
| Certifications | IP-65 (water resistant) | |
| Display | Backlit | |
| Range | Autoranging for dissolved oxygen User-selected or autoranging for conductivity |
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| Salinity Compensation |
Automatic 0-80 ppt |
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| Warranty |
2-year instrument |
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YSI 85 System Specifications (Instrument with Cable & Probe)
| Sensor Type | Range | Accuracy | Resolution | |
| Dissolved Oxygen (%) |
Steady-state Polarographic |
0 to 200% air saturation | ±2% saturation |
0.1% air saturation |
| Dissolved Oxygen (mg/L) |
Steady-state Polarographic | 0 to 20 mg/L | ±0.3 mg/L | 0.01 mg/L |
| Conductivity | Four electrode cell | 0 to 499.9 µS/cm 0 to 4999 µS/cm 0 to 49.99 mS/cm 0 to 200.0 mS/cm |
±0.5% full scale | 0.1 µS/cm 1 µS/cm 0.01 mS/cm 0.1 mS/cm |
| Salinity | Calculated from conductivity and temperature | 0 to 80 ppt | ±2% or ±0.1 ppt | 0.1 ppt |
| Temperature |
Thermistor | -5 to +65°C -5 to 45°C for oxygen |
±0.1°C (±1 lsd) |
0.1°C |
Manuals
85 Handheld Oxygen, Conductivity, Salinity, and Temperature System Operations Manual
Specification Sheets
YSI Classic Water quality handhelds Specifications
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Application Notes
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Conductivity Calibration SolutionsNIST-traceable conductivity solutions to calibrate both field instruments and lab instruments and cells together for maximum |
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