YSI Model 550A Waterproof Oxygen Meter
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Polyethylene membrane reduces stirring requirements and improves response time |
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Innovative field-replaceable dissolved oxygen (DO) electrode modules save time and money |
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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.
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| 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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