U-50 Multiparameter Water Quality Meter

 

 

 

 

 

 

 

Overview

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.

U-50 Series product literature

U-50 Instruction Manual

U-50 Series Literature

U-50 Flow Cell Instruction Manual

U-50 PC Instruction Manual

Features

• EPA method 180.1 turbidity design for high sensitivity turbidity measurements and wiper system using the Model U-53 and Model U-53G.
• Dissolved oxygen polarographic sensor requires little maintenance and is easy to rebuild
• Automatic one point calibration feature speeds calibration of pH, DO, conductivity, turbidity and water depth.
• All parameters are displayed on one screen.
• On screen icons display battery power and GPS, USB and probe connectivity.
• Backlight display and enlarged font capability.
• Field replaceable sensors.
• GPS capability.
• Store as many as 10000 sets of data.

  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
  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
  Water resistance	JIS protection level 7 (when sensor cable is connected)
  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 1.00 to 9.99 mD/cm: 0.01 10.0 to 99.9 mS/cm: 0.1 0.0 to 99.9 mS/m: 0.1 0.100 to 0.999 S/m: 0.001 1.00 to 9.99 S/m: 0.01
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 10 to 1000 NTU: 3% (reading) or ±1 NTU whichever is greater

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