HORIBA U-53 Multi-parameter Water Quality Meters

Sensor Probe:

Measurement temperature: -10 to 55℃

Maximum sensor diameter: Approx. 96 mm

Probe length: Approx. 340 mm

Cable length: Standard: 2 m, option: 10, 30 m

Mass: Approx. 1,800 g (Approx. 3.97 lbs)

Automatic calibration (uses pH4)

Liquid contact part material (liquid end material): PPS, glass, SUS316L, SUS304, FKM, PEEK,Q, titanium, FEP membrane, POM

Water resistance: JIS protection level 8

Control Unit

Outer dimensions: 115 (W) x 66 (D) x 283 (H) mm

Mass: Approx. 800 g (Approx. 1.76 lbs)

LCD: 320 x 240 liquid crystal display with backlight (black and white)

Data memory: 10,000

Communication: USB

Battery: C batteries x 4

Water resistance: JIS protection level 7 (when sensor cable is fitted)

Battery Life: Approx. 500 measurements

Storage temperature: -10 to 60℃

Ambient temperature: -5 to 45℃

pH

●Two-point calibration

●Automatic temperature

Measurement principle: Glass electrode method

Range: pH0 to 14

Resolution: 0.01pH

Repeatability: ±0.05pH

Accuracy: ±0.1pH

Oxidation Reduction Potential (ORP)

Measurement principle: Platinum electrode method

Range: -2000 mV to +2000 mV

Resolution: 1 mV

Repeatability: ±5 mV

Accuracy: ±15 mV

Dissolved Oxygen (DO)

●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 (COND)

●Auto range

●Automatic temperature conversion (25℃)

Measurement principle: 4 AC electrode method

Range: 0 to 10 S/m (0 to 100 mS/cm)

Salinity

Measurement principle: Conductivity conversion

Range: 0 to 70 PPT (permillage)

Resolution: 0.1 PPT

Total Dissolved Solid (TDS)

●Conversion factor setting

Measurement principle: Conductivity conversion

Range: 0 to 100 g/L

Resolution: 0.1% F.S

Datasheet