Simultaneous Measurement of up to 10 Parameters

pH, Dissolved Oxygen, Conductivity, Salinity, Total Dissolved Solids, Sea water Specific Gravity, Temperature, Turbidity, Depth, Oxygen Reduction Potential

The NEW W-22XD (Extra Durable) design

Includes a new 316 Stainless Steel Probe Cover, Stronger CT cell, and Pelican carrying case.

One Touch Calibration

Just submerge the probe into the calibration beaker filled with standard solution and press the button for simultaneous one-point calibration.  The system also enables two-point calibration where high precision measurement data is required.

Probe assembly fits inside 2-inch well

Data Logging Capability

The sensor's built in memory function enables continuous measurement for as long as one month (with measurements every 15 minutes).

Measurement at Depths up to 100 Meters

High-Precision Dissolved Oxygen Sensor

This quick response sensor requires no stirring.

System Enables GPS, PC, and Printer Capabilities

Dry Cell Battery Operated

Runs on standard alkaline batteries.

Oceans and Seas

City Sewage Water

Lakes and Marshes

Factory Drainage

Dams

Farm Water

Wells and Ground Water

Nurseries

 

Main unit
External dimension:	169(H) x 98(W) x 56(D)mm
Weight:	approx. 500g
Water proof construction:	IP- 67
Sensor probe
Measurement temperature:	0-55°c
Storage temperature:	- 5-60°c
Measurement depth:	to 100m
Maximum probe size:	95mm
Probe length:	430mm
Continuous use available:	30days Manual data memory (2880 items) Automatic calibration
Weight:	approx. 1500 g(with 10 m cable)
pH Two - point calibration Automatic temperature compensation
Measuring principle:	Glass electrode method
Range:	pH0~14
Resolution:	0.01pH
Repeatability:	±0.05pH
Accuracy:	±0.1pH
Dissolved oxygen Salt correction (0 to 40 ppt / automatic) Automatic temperature compensation
Measuring principle:	Diaphragm gavanic
Method Range:	0-19.99mg /L
Resolution:	0.01mg/L
Repeatability:	±0.1mg/L
Accuracy:	±0.2mg/L
Conductivity Auto range, Automatic temperature conversion)(25°C) SI units
Measuring principle:	4 AC electrode
Method range:	0~4%
Resolution:	0.01%
Repeatability:	±0.1%
Accuracy:	±0.3%
Salinity
Measuring principle:	Conductivity
Conversion range:	0-4%
Resolution:	0.01%
Repeatability:	±0.1%
Accuracy:	±0.3%
Total Dissolved Solids (TDS) Conversion factor setting
Measuring principle:	Conductivity
Conversion range:	0-100mg/L
Resolution:	0.1%F.S
Repeatability:	±2mg/L
Accuracy:	±5mg/L
Sea water specific gravity Display Sea water specific gravity Display °t, °0, °15
Measuring principle:	Conductivity
Conversion range:	0-50°t
Resolution:	0.1°t
Repeatability:	±2°t
Accuracy:	±5°t
Temperature
Measuring principle:	Thermistor
Method range:	0-55°c
Resolution:	0.01°c
Repeatability:	±0.3°c
Accuracy:	±1.0°c
Turbidity
Unit selection Measuring principle:	Penetration and scattering
Method range:	0-800 NTU
Resolution:	0.1NTU
Repeatability:	±3%
Accuracy:	±5%
Water depth
Measuring principle:	Pressure method range  (NTU or mg / L):0-100m
Resolution:	1m Repeatability: ±3%
Accuracy:	±5%
Oxidization reduction potential(ORP)
Measuring principle:	Platinum electrode
Method range:	±1999mV
Resolution:	1mV Repeatability:±5mV
Accuracy:	±15mV
Notes
The accuracy rating value is obtained from measurements at an intermediate point of the standard solution after two-point calibration (at room temperature andpressure). The repeatability and accuracy rating percentages are based on the full scale (except for salinity).	1: Organic solvents, strong acids, and strong alkaline solvents cannot be measured. 2: The maximum depth for ion measurements are 100 m for nitric acid ion, chloride ion, fluoride ion, 15 m for calcium ion, ammonia, and 3 m for potassium ion.

Title	Description	Download
Horiba W-20 Series Manual	Operator's Manual
Horiba W-20 Series Software Manual	Software Manual
Horiba W-20 Series Datasheet	Datasheet