Horiba U-52 Water Quality Meter Sensors
Technical Specifications
| Sensor Type | Measurement Principle |
Range |
Resolution |
Repeatability |
Accuracy |
|
pH
|
Glass electrode Method |
pH 0 to 14 |
0.01pH |
±0.05pH |
± 0.1pH |
| Oxidation Reduction Potential (ORP) | Platinum electrode method |
-2000 mV to +2000 mV |
1mV |
±5mV |
±15mV |
|
Dissolved Oxygen (DO)
|
Polarographic Method |
0 to 50.0 mg/L |
0.01 mg/L |
±0.1 mg/L |
0 to 20 mg/L: ±0.2 mg/L 20 to 50 mg/L: ±0.5mg/L
|
|
Conductivity (COND)
|
4 AC electrode Method |
0 to 10 S/m (0 to 100 mS/cm) |
0.000 to 0.999 mS/cm: 0.001 mS/cm 1.00 to 9.99 mS/cm: 0.01 mS/cm 10.0 to 99.9 mS/cm: 0.1 mS/cm 0.0 to 99.9 mS/m: 0.1 mS/m 0.100 to 0.999 S/m: 0.001 S/m 1.00 to 9.99 S/m: 0.01 S/m |
±0.5% F.S. |
*±1% F.S (Median of two-point calibration) |
|
Salinity |
Conductivity conversion |
0 to 70 PPT (permillage) |
0.1 PPT |
±1 PPT |
±3 PPT |
|
Total Dissolved Solid (TDS)
|
Conductivity conversion |
0. too g/L |
0.1% F.S. |
±2 g/L |
±5 g/L |
|
Seawater Specific Gravity |
Conductivity Conversion |
0 to 50 t |
0.1 t |
±2 t |
±5 t |
|
Temperature |
Thermistor method |
-10 to 55°C |
0.01°C |
*±0.10°C ( at calibration point) |
JIS Class B Platinum Thermometer sensor (±0.2+0.005 | t |) |
|
Turbidity (TURB) |
LED light source and 30° scattering method |
0 to 800 NTU |
0 to 99.9 NTU: 0.1 NTU 100 to 800 NTU: 1NTU |
*±5% (Reading) or ±0.05 NTU whichever is greater |
±5% (Reading) or ±1 NTU whichever is greater |
|
Water Depth (U-52 GPS model only) |
Pressure Method |
0 to 30 m |
0.05 m |
±1% F.S. |
±0.3m |
|
GPS |
US-50 Series G Models Only |
|
|
|
|