HORIBA U-51 (2 Metre Cable) Water Quality Meter

$5,680.00 ex GST

Complete kit with all sensors and backpack carry bag. (Excludes Turbidity, Water Depth and GPS)

Product Description

Measure and display up to 11 parameters simultaneously with newly designed control unit and sensor technology. The operator can select which parameters are to be displayed on the screen at any time. Intuitive software assures ease of use and operation efficiency. Experience the durability and performance of a water quality meter that exceeds your expectations in the field testing of groundwater and surface water applications.

Features

  • Easy to read LCD display
  • One-hand operation
  • On-screen icon displays battery power, USB and probe unit connectivity
  • Quick-connect connector (cable to control unit)
  • Shock resistant cover
  • Backlight display
  • Minimum dissolved oxygen sensor maintenance with screw-on type membrane cap
  • Chemical resistant materials of construction
  • Optional ToupH pH electrode* that is difficult to break (* Prevents damage during maintenance)
  • Field replaceable sensors
  • All models have data logging capability (10,000 sets of data including date/time and site name) with USB connectivity to PC
  • Latest calibration data/date can be viewed on the display at any time.

Model U-51 measures:

pH, pHmV, ORP, conductivity, dissolved oxygen, temperature, salinity, total dissolved solids, specific gravity of seawater.

For more details and comparison of specs. for each model, please click on above ‘Specifications’ tab.

Complete Kit

Supplied as complete kit with control unit, probe assembly, all sensors, carry bag (backpack type), spare D.O. membrane, D.O. filling soln, D.O. spanner, pH reference soln, silicone grease, batteries, calibration beaker set, 500ml Auto-Cal soln, sponge brush, instruction manual.

Accessories

Please see accessories list for optional heavy duty carry case or USB cable and software for downloading stored data to a PC.

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 (Tungsten lamp)

   —

   —

    —

   ✓

    ✓

Water depth

   —

   —

    ✓

   ✓

    ✓

ORP (Oxidation Reduction Potential)

   ✓

   ✓

    ✓

   ✓

    ✓

GPS

   —

   —

    ✓

   —

    ✓

Sensor Probe 

U-
51

U-
52

U-
52G

U-
53

U-
53G

Max.items displaying simultaneously

 10

 11

 11

 11

 11

Measurement temperature

-10 to 55°C

Max. sensor diameter

Approx. 96mm

Probe length

Approx. 340mm

Cable length

Standard: 2m, Option: 10m,30 m

Mass

Approx. 1800g
(Approx. 3.97 Ibs)

Automatic calibration
(use pH4)

Applying to all models

Turbidity wiper

 –

 –

 –

 ✓

 ✓

Measurement depth

Max. 30 m

Material contact with liquid

PPS, glass, SUS316L, SUS304, FKM, PEEK, Q,Titaniumu, 
FEP membrane, POM

Water resistance

JIS protection livel 8

 Monitor

U-51

U-52

U-52G

U-53

U-53G

Outer dimensions

115(W) X 66(D) X 283(H) mm

Mass

Approx. 800 g
(Approx. 1.76 Ibs)

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

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(All models in common)

  • Two-point calibration
  • Automatic temperature

Specification attribute

Specification value

Measurement principle

Glass electrode method

Range

pH 0 to 14

Resolution

0.01pH

Repeatability

±0.05pH

Accuracy

±0.1pH

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

 Dissolved Oxygen (DO, All models in common)

  • Salinity conversion (0 to 70 PPT / automatic)
  • Automatic temperature compensation

Specification attribute

Specification value

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, All models in common)

  • 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 mS/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

 

Specification attribute

Specification value

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

0.1% F.S.

Repeatability

±2 g/L

Accuracy

±5 g/L

Seawater specific gravity

  • Display δ1, δ0, δ15

Specification attribute

Specification value

Measurement principle

Conductivity conversion

Range

0 to 50 δt

Resolution

0.1 δt

Repeatability

±2 δt

Accuracy

±5 δt

Temperature

Specification attribute

Specification value

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 |t|)

Turbidity (TURB)

U-51

U-52

U-52G

U-53

U-53G

Measurement principle

LED
light
source
and
30°scattering
method

Tungsten lamp
source
and
90°scattering
method

Range

0 to 800 NTU

0 to 1000 NTU

Resolution

0 to 99.9 NTU: 0.1,
100 to 800 NTU: 1

0 to 9.99 NTU: 0.01,
10 to 99.9 NTU: 0.1, 
100 to     1000 NTU: 1,

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 
10 to 1000 NTU: 3% (reading) or ±1 NTU whichever is greater

Water depth

 

U-  51

U-52

U-52G

U-53

U-53G

Measurement principle

   –

   –

Pressure method      

Range

   –

   –

0 to 30 m       

Resolution

   –

   –

0.05 m      

Repeatability

   –

   –

±1% F.S. 

Accuracy

   –

   –

±0.3 m

GPS

12 channel parallel (This is availalble for U-52G, U-53G.)

Note:
*Battery life based on continuous operation using alkaline C dry batteries when the monitor temperature is over 20℃ and the backlight OFF.
*Accuracy is measured by calibrating 4 points for turbidity and electrical conductivity and 2 points for all other measurements against standard solution.
*Repeatability is measured by the ability to reproduce the results against the standard solution (at 25℃ normal pressure condition).

Click Here for U-50 Series Software Instruction Manual

Click Here for U-50 Flow Cell Instruction Manual

Click Here for HORIBA U-50 series brochure/specifications

Click Here for U-50 Instruction Manual

CLICK HERE: HOW TO DO AUTO CALIBRATION

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