Conductivity Measurements
|
| Measurement Range |
Electrical conductivity and specific conductance: 0 to 100,000 µS/cm
Salinity using PSS-78: 2 to 42 PSU
Total Dissolved Solids (TDS): 0 to 100,000 mg/L |
| Calibrated Range |
Electrical conductivity: 50 to 80,000 µS/cm | 5° to 35°C (41° to 95°F) |
| Accuracy |
Conductivity: +/-2% or 15 µS/cm whichever is greater
Salinity: +/-2% of reading or 0.1 PSU, whichever is greater |
| Resolution |
Conductivity:
0.1 µS/cm from 0 to 1,000 µS/cm
1 µS/cm from 1,000 to 10,000 µS/cm
10 µS/cm from 10,000 to 100,000 µS/cm
TDS: 0.1 mg/L
Salinity: 0.01 PSU |
| Response Time |
1 second to 90% at a stable temperature |
Absolute Pressure and Water Level Measurements W-CTD-01
|
| Range |
0 to 207 kPa (0 to 30 psia); approximately 0 to 9 m (0 to 30 ft) of water depth at sea level, or 0 to 12 m (0 to 40 ft) of water at 3,000 m (10,000 ft) of altitude |
| Factory Calibrated Range |
69 to 207 kPa (10 to 30 psia), 0° to 40°C (32° to 104°F) |
| Burst Pressure |
310 kPa (45 psia) or 18 m (60 ft) depth |
| Water Level Accuracy* |
Typical error: ±0.05% FS, 0.5 cm (0.015 ft) water
Maximum error: ±0.1% FS, 1.0 cm (0.03 ft) water |
| Raw Pressure Accuracy** |
±0.3% FS, 0.62 kPa (0.09 psi) maximum error |
| Resolution |
<0.02 kPa (0.003 psi), 0.21 cm (0.007 ft) water |
| Pressure Response Time*** |
<1 second to 90% at a stable temperature |
Absolute Pressure and Water Level Measurements W-CTD-02
|
| Range |
0 to 400 kPa (0 to 58 psia); approximately 0 to 30.6 m (0 to 100 ft) of water depth at sea level, or 0 to 33.6 m (0 to 111 ft) of water at 3,000 m (10,000 ft) of altitude |
| Factory Calibrated Range |
69 to 400 kPa (10 to 58 psia), 0° to 40°C (32° to 104°F) |
| Burst Pressure |
500 kPa (72.5 psia) or 40.8 m (134 ft) depth |
| Water Level Accuracy* |
Typical error: ±0.05% FS, 1.5 cm (0.05 ft) water
Maximum error: ±0.1% FS, 3.0 cm (0.1 ft) water |
| Raw Pressure Accuracy** |
±0.3% FS, 1.20 kPa (0.17 psi) maximum error |
| Resolution |
<0.04 kPa (0.006 psi), 0.41 cm (0.013 ft) water |
| Pressure Response Time*** |
<1 second to 90% at a stable temperature |
Absolute Pressure and Water Level Measurements W-CTD-03
|
| Range |
0 to 850 kPa (0 to 123.3 psia); approximately 0 to 76.5 m (0 to 251 ft) of water depth at sea level, or 0 to 79.5 m (0 to 262 ft) of water at 3,000 m (10,000 ft) of altitude |
| Factory Calibrated Range |
69 to 850 kPa (10 to 123.3 psia), 0° to 40°C (32° to 104°F) |
| Burst Pressure |
1,200 kPa (174 psia) or 112 m (368 ft) depth |
| Water Level Accuracy* |
Typical error: ±0.05% FS, 3.8 cm (0.125 ft) water
Maximum error: ±0.1% FS, 7.6 cm (0.25 ft) water |
| Raw Pressure Accuracy** |
±0.3% FS, 2.55 kPa (0.37 psi) maximum error |
| Resolution |
<0.085 kPa (0.012 psi), 0.87 cm (0.028 ft) water |
| Pressure Response Time*** |
<1 second to 90% at a stable temperature |
Absolute Pressure and Water Level Measurements W-CTD-04
|
| Range |
0 to 145 kPa (0 to 21 psia); approximately 0 to 4 m (0 to 13 ft) of water depth at sea level, or 0 to 7 m (0 to 23 ft) of water at 3,000 m (10,000 ft) of altitude |
| Factory Calibrated Range |
69 to 145 kPa (10 to 21 psia), 0° to 40°C (32° to 104°F) |
| Burst Pressure |
310 kPa (45 psia) or 18 m (60 ft) depth |
| Water Level Accuracy* |
Typical error: ±0.075% FS, 0.3 cm (0.01 ft) water
Maximum error: : ±0.15% FS, 0.6 cm (0.02 ft) water |
| Raw Pressure Accuracy** |
±0.3% FS, 0.43 kPa (0.063 psi) maximum error |
| Resolution |
<0.014 kPa (0.002 psi), 0.14 cm (0.005 ft) water |
| Pressure Response Time*** |
<1 second to 90% at a stable temperature |
Temperature Measurements (All Models)
|
| Range |
-20° to 50°C (-40° to 122°F), non-freezing water |
| Accuracy |
±0.15°C (±0.27°F) from 0° to 50°C (32° to 122°F) |
| Resolution |
0.01°C at 25°C (0.018°F at 77°F) |
| Response TIme |
3 minutes to 90% in water (typical) |
| Drift |
<0.1°C (0.18°F) per year |
Sensor
|
| Dimensions |
2.5 cm (1 inch) diameter, 15 cm (6 inches) length |
| Weight |
Approximately xx g (xx oz) in air; approximately xx g (xx oz) in saltwater |
| Wetted Materials |
Passivated 316 Stainless steel housing rated for use in saltwater, Viton and Buna-N O-rings, PET sensor connector
Depth sensor: ceramic
Conductivity sensor: PET, platinum plating on electrodes
Note: Sensor should be mounted so that it is not in contact with other metals |
| Environmental Rating |
IP68; Waterproof to pressure sensor burst pressure rating |
