Horiba U-50 Series Water Quality Meter

U-50 series Multi-parameter water quality checker enables to measure and indicate the monitoring result simultaneously up to 11 parameters with one unit. Tough & powerful design, considering user friendly field monitoring on site, such as rivers, ground water, drainage water, etc. bring together feature of function and performance, which makes simple operation for everybody. 

Horiba U-50 Series Control Unit

• Auto-calibration feature provides hassle free calibration of pH, dissolved oxygen, conductivity, turbidity and depth.
• Shock resistant cover designed for rough treatment in the field and is easily cleaned.
• Cable can be easily connected and disconnected with quick-connect fitting.

Data Management of Horiba U-50

• Auto hold function freezes average data values on the screen to offer more time to verify or transcribe data.
• Diagnostic functions notify the user of errors.
• Integral USB connection for data transfer to a PC. USA cable is sold separately and includes software.
• Selectable measurement units allow the operator to report data without the need to convert data to desired units of measure.
  

 Horiba U-50 Multiple Sensors Housed in Each Probe

•  Multiple sensors allow for the measurement of 11 parameters simultaneously (pH, pH(mv), ORP, DO, COND, Salinity, TDS, Seawater Specific Gravity, Temperature, Turbidity, Water Depth).
• Turbidity sensor U-53 conforms to US EPA method 180.1. Precision has been improved over conventional instruments. The model U-53 high precision filed replaceable turbidity sensor with wiper has a resolution of 0.01 NTU.
• Turbidity sensor of U-54 conforms to EN ISO 7027. The model U-54 has a resolution of 0.01 NTU.
• Improved stability of the dissolved oxygen sensor has been achieved with a new 3 electrode design for fast response and polarographic sensor for ease of maintenance.
• pH and ORP electrodes can be replaced individually to reduce replacement costs

• Measurement Principle: Glass Electrode Method
• Range: pH 0-14
• Resolution: 0.01 pH
• Repeatability: +/- 0.05 pH
• Accuracy: +/- 0.1 pH

Oxidation Reduction Potential (ORP)

• Measurement Principal: Platinum Electrode Method
• Range: -2000 mV to +2000 mV
• Resolution: 1 mV
• Repeatability: +/- 5 mV
• Accuracy: +/- 15 mV

Dissolved Oxygen (DO)

• Measurement Principal: 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 (COND)

• Measurement Principal: 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 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
• Repeatability: +/- .05% Full Scale (FS)
• Accuracy: +/- 1% Full Scale (FS) (Median of two-point calibration)

Salinity

• Measurement Principal: Conductivity Conversion
• Range: 0 to 70 PPT (permillage)
• Resolution: 0.1 PPT
• Repeatability: +/- 1 PPT
• Accuracy: +/- 3 PPT

Total Dissolved Solids (TDS)

• Measurement Principal: Conductivity Conversion
• Range: 0 to 100 g/L
• Resolution: 0.1% Full Scale
• Repeatability: +/- 2 g/L
• Accuracy: +/- 5 g/L

Seawater Specific Gravity

• Measurement Principal: Conductivity Conversion
• Range: 0 to 50 
• Resolution: 0.1
• Repeatability: +/- 2
• Accuracy: +/- 5

Temperature

• Measurement Principal: 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)

Turbidity (TURB) U-52 Version Only

• Measurement Principal: LED Light Source and 30 ° Scattering Method
• Range: 0 to 800 NTU
• Resolution: 0 to 99.9 NTU: 0.1 NTU, 100 to 800 NTU: 1 NTU
• Repeatability: +/- 5% (Reading) or +/- 0.5 NTU Whichever is Greater
• Accuracy: +/- 5% (Reading) or +/- 1 NTU Whichever is Greater

Turbidity (TURB) U-53 Version Only

• Measurement Principal: Tungsten Lamp Source and 90° Scattering Method
• Range: 0 to 1000 NTU
• Resolution: 0 to 9.99 NTU: 0.01 NTU, 10 to 99.9 NTU: 0.1 NTU, 100 to 1000 NTU: 1 NTU
• Repeatability: +/- 3% (Reading) or +/- 0.1 NTU Whichever is Greater
• Accuracy: 0 to 10 NTU: +/- 0.5 NTU, 10 to 1000: 3% (Reading) or +/- 1 NTU Whichever is Greater

Turbidity (TURB) U-54 Version Only

• Measurement Principal: LED Light Source and 90 ° Scattering Method
• Range: 0 to 1000 NTU
• Resolution: 0 to 0.99 NTU: 0.01 NTU, 1 to 99.9 NTU: 0.1 NTU, 100 to 1000: 1 NTU
• Repeatability: +/- 5% (Reading) or +/- 0.5 NTU Whichever is Greater
• Accuracy: +/- 5% (Reading) or +/- 1 NTU Whichever is Greater

Water Depth (Optional on U-52 w/ GPS & U-53 Only)

• Measurement Principal: Pressure Method
• Range: 0 to 30 m
• Resolution: 0.05 m
• Repeatability: +/- 1% Full Scale (FS)
• Accuracy: +/- 0.3 m

GPS (Optional on U-52, U-53 & U-54)

• 12 Channel Parallel

Sensor Probe

• Measurement Temperature: -10 to 55° C
• Maximum Sensor Diameter: Approx. 96 mm
• Probe Length: Approx. 340 mm
• Cable Length: Standard: 2 m, Optional: 10 or 30 m
• Mass: Approx: 1,800 g (Approx 3.97 lbs)
• Automatic Calibration: Yes, uses 4 pH Auto Cal Solution (1 point per sensor)
• Turbidity Wiper: U-53 Only
• Measurement Depth: Max 30 m
• Liquid Contact Part Material (Liquid and Material): PPS, SUS316L, SUS304, FKM, PEEK,Q, Titanium, FEP membrane, POM
• Water Resistance: JIS Protection Level 8

Control Unit

• Outer Dimensions: 115 (w) X 65 (D) X 283 (H) mm
• Mass: Approx. 800 g (Approx. 1.76 lbs)
• LCD: 320 X 240 Liquid Crystal Display w/ Backlight (Black & White)
• Data Memory: 10,000
• Communication: USB
• Battery: (4) C Batteries
• Water Resistance: JIS Protection Level 7 (When Sensor Cable is Fitted)
• Battery Life: Approx. 70 Hours (Without Backlight). *U-53 Approx. 500 Measurements
• Storage Temperature: -10 to 60° C
• Ambient Temperature: -5 to 45° C