Product Description
The U-50 Series multi-parameter water quality meters are equipped to measure and log data for as many as 11 parameters simultaneously with one single probe. Experience the durability, reliability and intuitive software that will exceed your expectations. Monitor surface water and ground water by deploying the probe directly into a body of water or using a flow cell.
Specifications
U-50 series Feature comparison
|
U-51 |
U-52 |
U-52G |
U-53 |
U-53G |
|
|
pH |
○ |
○ |
○ |
○ |
○ |
|
Dissolved Oxygen |
○ |
○ |
○ |
○ |
○ |
|
Conductivity |
○ |
○ |
○ |
○ |
○ |
|
Salinity |
○ |
○ |
○ |
○ |
○ |
|
TDS(Total Dissolved Solid) |
○ |
○ |
○ |
○ |
○ |
|
Seawater specific gravity |
○ |
○ |
○ |
○ |
○ |
|
Temperature |
○ |
○ |
○ |
○ |
○ |
|
Turbidity (LED) |
— |
○ |
○ |
— |
— |
|
Turbidity (Tangsten lamp) |
— |
— |
— |
○ |
○ |
|
Water depth |
— |
— |
○ |
○ |
○ |
|
ORP (Oxidation Reduction Potential) |
○ |
○ |
○ |
○ |
○ |
|
GPS |
— |
— |
○ |
— |
○ |
|
pH (mV) |
○ |
○ |
○ |
○ |
○ |
Sensor Probe
|
U-51 |
U-52 |
U-52G |
U-53 |
U-53G |
|
|---|---|---|---|---|---|
|
Max.items displaying simultaneously |
9 |
10 |
11 |
10 |
11 |
|
Measurement temperature |
-10 to -55°C |
||||
|
Max. sensor diameter |
Approx. 96 mm |
||||
|
Probe length |
Approx. 340 mm |
||||
|
Cable length |
2m, 10m, 30m |
||||
|
Mass |
Approx. 1800 g |
||||
|
Automatic calibration (use HORIBA 100-4) |
Applying to all models |
||||
|
Turbidity wiper |
– |
– |
– |
○ |
○ |
|
Measurement depth |
Max. 30 m |
||||
|
Material contact with liquid |
PPS, glass, SUS316L, SUS304, FKM, PEEK, Titaniumu, FEP membrane, POM |
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|
Water resistance |
JIS protection level 8 |
||||
Control Unit
|
U-51 |
U-52 |
U-52G |
U-53 |
U-53G |
|
|---|---|---|---|---|---|
|
Outer dimensions |
115(W) X 65(D) X 280(H) mm |
||||
|
Mass |
Approx. 800 g (Without Batteries) |
||||
|
LCD |
320 X 240 Graphic liquid crystal with backlight (black and white) |
||||
|
Data memory |
10000 Data Sets |
||||
|
Communication |
USB peripheral |
||||
|
Battery |
C batteries x 4 ; CR2032 x 1 |
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|
Water resistance |
JIS protection level 7 (when sensor cable is connected) |
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|
Battery life |
U-51, U-52, U-52G: Approx. 70 hours (without backlight) U-53, U-53G: Approx. 500 measurements |
||||
|
Storage temperature |
-10 to 60°C |
||||
|
Ambient temperature |
-5 to 45°C |
||||
pH (Avaliable In All Models)
- Two point calibration
- Automatic temperature compensation
|
Measurement principle |
Glass electrode method |
|
Range |
pH 0 to 14 |
|
Resolution |
0.01pH |
|
Repeatability |
±0.05pH |
|
Accuracy |
±0.1pH |
Dissolved Oxygen (Available in All Models)
- Salinity conversion (0 to 70 PPT / automatic)
- Automatic temperature compensation
|
Measurement principle |
Polarographic method |
|
Range |
0 to 50.0 mg/L |
|
Resolution |
0.01 mg/L |
|
Repeatability |
±0.1 mg/L |
|
Accuracy |
0 to 20 mg/L: ±0.2 mg/L, 20 to 50 mg/L: ±0.5 mg/L |
Conductivity (Avaliable in All Models)
- Auto range
- Automatic temperature conversion (25°C)
|
Measurement principle |
4 AC electrode method |
|
Range |
0 to 10 S/m (0 to 100 mS/cm) |
|
Resolution |
0.000 to 0.999 mS/cm: 0.001 |
|
Repeatability |
±0.05% F.S. |
|
Accuracy |
±1% F.S. (Median of two-point calibration) |
Salinity (Avaliable in All Models
|
Measurement principle |
Conductivity conversion |
|
Range |
0 to 70 PPT (permillage) |
|
Resolution |
0.1 PPT |
|
Repeatability |
±1 PPT |
|
Accuracy |
±3 PPT |
Total Dissolved Solid (TDS)
- Conversion factor setting
|
Specification attribute |
Specification value |
|---|---|
|
Measurement principle |
Conductivity conversion |
|
Range |
0 to 100 g/L |
|
Resolution |
F.S. 0.1% |
|
Repeatability |
±2 g/L |
|
Accuracy |
±5 g/L |
Seawater specific gravity (Available in All Models)
- Display δ1, δ0, δ15
|
Measurement principle |
Conductivity conversion |
|
Range |
0 to 50 δt |
|
Resolution |
0.1 δt |
|
Repeatability |
±2 δt |
|
Accuracy |
±5 δt |
Temperature (Available in All Models)
|
Measurement principle |
Thermistor method |
|
Range |
-10 to -55°C |
|
Resolution |
0.01°C |
|
Repeatability |
±0.10°C (at calibration point) |
|
Accuracy |
JIS class B platinum thermometer sensor (±0.3 + 0.005 / 1°C) |
Turbidity (TURB)
|
U-52 |
U-52G |
U-53 |
U-53G |
|
|---|---|---|---|---|
|
Measurement principle |
LED transmitting light source, 30° forward scattering method |
Tungsten lamp transmitting source and 90° scattering method |
||
|
Range |
0 to 800 NTU |
0 to 1000 NTU |
||
|
Resolution |
0.1 NTU |
0.01 NTU |
||
|
Repeatability |
±5% (reading) or ±0.5 NTU whichever is greater |
±3% (reading) or ±0.1 NTU whichever is greater |
||
|
Accuracy |
±5% (reading) or ±1 NTU whichever is greater |
0 to 10 NTU: ±0.5 NTU |
||
Water depth
|
U-52G |
U-53 |
U-53G |
|
|---|---|---|---|
|
Measurement principle |
Pressure method |
||
|
Range |
0 to 30 m |
||
|
Resolution |
0.5 m |
||
|
Repeatability |
±1% F.S. |
||
|
Accuracy |
±0.3 m |
||
Oxidation Reduction Potential (ORP) (Available in All Models)
|
Measurement principle |
Platinum electrode method |
|
Range |
-2000 mV to +2000 mV |
|
Resolution |
1 mV |
|
Repeatability |
±5 mV |
|
Accuracy |
±15 mV |
GPS 12 channel parallel (This is availalble for U-52G and U-53G.)