U-50 Series Multi-Parameter Water Quality Meter,specification,price,image-Bio-Equip in China

Product Detail
Company Profile

Purpose:

The U-50 series multi-parameter water-quality meter simultaneously measures and displays 11 parameters. Rugged, powerful and GPS-equipped, it is ideal for testing rivers, ground-water and waste-water.

Features:

• Read-outs in five languages (English, Japanese, Russian, Spanish, Portuguese)

• Simultaneous display of 11 parameters: pH, pH (mV), ORP, dissolved oxygen, conductivity, salinity, TDS, seawater specific gravity, temperature, turbidity and water depth

• U-53 turbidity probe meets US EPA requirements; resolution 0.01 NTU with automatic cleaning brush

• U-54 turbidity probe complies with EN ISO 7027; resolution 0.01 NTU

• Improved DO probe gives faster response and easier maintenance

Main Unit & Probe Specifications

Main Unit
Dimensions	115 mm W × 65 mm D × 280 mm H
Weight	approx. 800 g (1.76 lb)
LCD	320 × 240 back-lit monochrome
Data port / memory	USB, 10 000 data sets
Battery	4 × AA dry cells
Battery life	U-51/52/52G/54/54G ≈ 70 h (back-light off, 20 °C); U-53/53G ≈ 500 measurement cycles
Protection	JIS 7 (with cable attached)
Storage / operating temp.	–10 – 60 °C / –5 – 45 °C

Probe
Diameter × length	approx. 96 mm × 340 mm
Weight	approx. 1 800 g (3.97 lb)
Cable length	2 m std.; optional 10 m or 30 m
Measuring depth	0 – 30 m
Auto-cal.	pH 4 buffer (all models)
Wetted materials	PPS, glass, SIS316L, SUS304, FKM, PEEK, quartz, titanium, FEP membrane, POM
Protection	JIS 8
Turbidity wiper	built-in on U-53 & U-53G only

Measurement Performance

Parameter	Range	Accuracy	Repeatability	Resolution
Temperature	–10 – 55 °C	±0.3 °C	±0.1 °C	0.01 °C
pH	0 – 14	±0.1	±0.05	0.01
ORP	–2 000 – +2 000 mV	±15 mV	±5 mV	1 mV
Dissolved O₂	0 – 50 mg L⁻¹	±0.2 mg L⁻¹ (0-20); ±0.5 mg L⁻¹ (20-50)	±0.1 mg L⁻¹	0.01 mg L⁻¹
Salinity / Conductivity	0 – 70 ppt	±3 ppt	±1 ppt	0.1 ppt
Depth	0 – 30 m	±0.3 m	±1 % FS	0.05 m
Turbidity (LED) U-51/52/52G	0 – 800 NTU	±3-5 % FS or ±1 NTU	±3-5 % FS or ±0.5 NTU	0.1 NTU (0-100); 1 NTU (100-800)
Turbidity (LED) U-53/53G/54/54G	0 – 1 000 NTU	same as above	same as above	same as above
TDS	0 – 100 g L⁻¹	±5 g L⁻¹	±2 g L⁻¹	0.1 g L⁻¹
Seawater specific gravity	0 – 50 δt	±5 δt	±2 δt	0.1 δt

Notes

*Battery life measured with alkaline AA cells, display temp. ≥ 20 °C, back-light off.
*Accuracy for turbidity & conductivity after 4-point calibration; other items after 2-point calibration with standard solutions.
*Repeatability values refer to measurements in standard solutions.

Model Comparison (✓ = included)

Parameter	U-51	U-52	U-52G	U-53	U-53G	U-54	U-54G
pH	✓	✓	✓	✓	✓	✓	✓
ORP	✓	✓	✓	✓	✓	✓	✓
Dissolved oxygen	✓	✓	✓	✓	✓	✓	✓
Conductivity	✓	✓	✓	✓	✓	✓	✓
Salinity	✓	✓	✓	✓	✓	✓	✓
TDS	✓	✓	✓	✓	✓	✓	✓
Seawater specific gravity	✓	✓	✓	✓	✓	✓	✓
Temperature	✓	✓	✓	✓	✓	✓	✓
Turbidity (LED)	—	✓	✓	—	—	✓	✓
Turbidity (tungsten)	—	—	—	✓	✓	—	—
Water depth	—	—	✓	✓	✓	✓	✓
GPS	—	—	✓	—	✓	—	✓

*U-54/G (2 m cable) has no depth sensor.