YSI Model 550A Waterproof Oxygen Meter

YSI Model 550A Waterproof Oxygen Meter

Polyethylene membrane reduces stirring requirements and improves response time
Innovative field-replaceable dissolved oxygen (DO) electrode modules save time and money

Waterproof, impact-resistant case—IP67 rated

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These DO meters feature a built-in calibration chamber that provides a 100% water-saturated environment—perfect for calibrating, transporting, and storing probe. Provide simultaneous readings of oxygen and temperature. Measurements are fast and easy with one-handed operation, large backlit display, automatic push-button calibration, and a weighted, quick-sinking probe. Low-battery indicator alerts you to change batteries. Salinity,temperature and altitude compensations eliminate the need for correlation chart.
Note: Three-year warranty on the instrument; one-year on the DO sensor module.

Specifications
DO range 0.0 to 50.0 mg/L
DO resolution 0.01 mg/L
DO accuracy ±0.3 mg/L or ±2% of reading, which ever is greater;
20-50 mg/L: ±6% of reading
Percent saturation range 0 to 500% saturation
Percent saturation resolution 0.1% saturation
Percent saturation accuracy ±2% of reading, whichever is greater;
200-500%: ±6% of reading
Temp resolution 0.1°C
Temp accuracy ±0.3°C
Temp range -5 to 45°C
Temp compensation automatic,
-5 to 45°C
Salinity compensation manual,
0 to 70 ppt
Altitude compensation 0 to 10,000 ft
Probe type Polarographic
Probe length 25-ft cable
Display 3" x 4" backlit LCD
Power four alkaline 1.5V C batteries (included)
Battery life over 2000 hours at 25°C
Dimensions 4-3/8"W x 9"H x 3-1/2"D

 

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