This optical instrument employs the measurement of the refractive index to determine the salinity of natural and artificial seawater, ocean water or brackish intermediates. Samples are measured after a simple user calibration with distilled or de-ionized water. Within seconds, the refractive index and temperature are measured and converted into one of three popular measurement units; Practical Salinity Units (PSU), Salinity in parts per thousand (ppt), or Specific Gravity (S.G. (20/20). All conversion algorithms are based upon respected scientific publications using the physical properties of seawater (not sodium chloride). The temperature (in °C or °F) is also displayed on the large dual level display along with helpful message codes. Sodium Chloride Standards are available as an option to validate the calibration of this instrument.
Specifications:
| Range | 0 to 50 PSU 0 to 150 ppt 1.000 to 1.114 S.G. (20/20) 0 to +80C / 32 to +176F |
| Resolution | 1 PSU 1 ppt 0.001 S.G. (20/20) 0.1C/F |
| Accuracy | +/- 2PSU +/- 2 ppt +/- 0.002 S.G. (20/20) +/- 0.3C/0.5F |
Additional Features & Specifications:
