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Water
Quality Testing Equipment >YSI 556 for Rental |
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YSI 556 pH, Temperature, Conductivity, DO, ORP Meter |
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YSI-556 MPS Manual pdf |
YSI 556 Spec Sheet (pdf) |
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| Rental pH/EC/Temp./D.O./Redox Meter |
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Measures D.O., pH, conductivity,
temp.& ORP at the same time |
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Field-replaceable electrodes |
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Compatible with EcoWatch® for Windows® data analysis software |
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Stores over 49,000 data sets, time/date stamped, interval or
manual logging |
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Three-year warranty on the instrument; one-year on the probes |
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GLP assisting, records calibration data in memory |
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Available with 4, 10, and 20-m cable lengths |
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IP-67, impact-resistant, waterproof case |
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Easy-to-use, screw-on cap DO membranes |
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RS-232 interface for PC connection |
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| Specifications |
Dissolved
Oxygen
(mg/L)/% |
Sensor Type |
Steady state polarographic |
| Range |
0 to 50 mg/L / 0 to 500% air saturation |
| Accuracy |
0 to 20 mg/L, ± 2% of the reading or ±0.2 mg/L, whichever is greater;
20 to 50 mg/L, ± 6% of the reading
0 to 200% air saturation, ± 2% of the reading or ±2% air saturation,
whichever is greater; 200 to 500% air saturation, ± 6% of the reading |
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Resolution |
0.01 mg/L / 0.1% air saturation |
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| Temperature |
Sensor Type |
YSI Temperature Precision™ thermistor |
| Range |
-5 to 45°C |
| Accuracy |
± 0.15°C |
| Resolution |
0.1°C |
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| Conductivity |
Sensor Type |
4-electrode cell with autoranging |
| Range |
0 to 200 mS/cm |
| Accuracy |
± 0.5% of reading or ± 0.001 mS/cm; whichever is greater
(4-meter cable)
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| Resolution |
0.001 mS/cm to 0.1 mS/cm (range-dependent) |
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| Salinity |
Sensor Type |
Calculated from conductivity and temperature |
| Range |
0 to 70 ppt |
| Accuracy |
± 1.0% of reading or ±0.1 ppt, whichever is greater |
| Resolution |
0.01 ppt |
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| pH |
Sensor Type |
Glass combination electrode |
| Range |
0 to 14 units |
| Accuracy |
±0.2 units |
| Resolution |
0.01 units |
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| ORP |
Sensor Type |
Platinum button |
| Range |
-999 to +999 mV |
| Accuracy |
± 20 mV |
| Resolution |
0.1 mV |
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| Total Dissolved Solids(TDS) |
Sensor Type |
Calculated from conductivity (variable constant, default 0.65) |
| Range |
0 to 100 g/L |
| Resolution |
4 digits |
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