πSAMI-pH - Ocean pH Sensor for moderate depth applications
The πSAMI-pH is based on the same technology as the larger, more expensive SAMI-pH, but is designed for use to 100 m.
- Measures pHT (total hydrogen scale) in the marine pH range of 7-9
- Uses a highly accurate colorimetric reagent method
- System does not suffer from the drift that plagues most electrode based pH probes
- Designed to provide researchers with valuable in-situ time series data near the surface - depths to 100 m.
- 160-day deployment capability (hourly measurements, 25C)
- Internal battery or power from buoy, drifter.
πSAMI-pH Performance Parameters |
|
| pH range | 7-9 |
| Salinity range* | 25-40 |
| Response time | 3 minutes |
| Accuracy (based on CRM intercomparison) | +/- 0.007 pH units |
| Precision | <0.004 pH units |
| Long term drift | <0.002 pH units over 6 months |
| Thermistor accuracy, precision | 0.1° C, +/- 0.01º C |
| Dimensions - instrument body (length x diameter) | 31 x 11.4 cm |
| Weight in air/water | 3.8/0.9 kg |
| * Extended range possible, please contact us with questions. | |