Horiba U50 Multi Parameter Water Quality Tester

Horibas U-50 series is a line of water quality meters that allows you to measure up to 11 parameters at the same time. It is designed to be both rugged and easy to operate making it a perfect match for field work. Sampling rivers, environmental groundwarwe wells, lakes, runoff and drainage is right up this meters alley. See the chart below to help decide which model fits your needs.

The Horiba U50 series replaces the discontinued u-10 line of multiparameter water quality meters. The ruggedness and universality of the line allows for years of field use with minimal repair. Order with a 30 meter long cable for down well use or the 2 meter cable for use at the surface as you collect groundwater samples from your monitoring wells. Count on Horiba for quality and dependability.

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Horiba u50 Series 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
Measurement principle	Glass electrode method
Range	pH 0 to 14
Resolution	0.01pH
Repeatability	±0.05pH
Accuracy	±0.1pH

Dissolved Oxygen	Salinity conversion (0 to 70 PPT / automatic) Automatic temperature compensation
Specification attribute	Specification value
Measurement principle	Polarograph 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	Auto range Automatic temperature conversion (25°C)
Specification attribute	Specification value
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)

Temperature
Specification attribute	Specification value
Measurement principle	Thermistor method
Range	-5 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-51	U-52	U-52G	U-53	U-53G
Measurement principle	–	30°LED forward penetration and scattering method		90°Tungsten lamp penetration and 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: ±5 NTU 10 to 1000 NTU: 3% (reading) or ±1 NTU whichever is greater

Oxidation Reduction Potential (ORP)
Specification attribute	Specification value
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.)

Horiba U50 pH, DO, EC, alinity, TDS, Temp, Turbidity, ORP, GPS and more

Horiba u50 Series Specifications