WiMo: Multiparameter Sonde

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WiMo: Multiparameter Sonde

WiMo: Multiparameter Sonde

The WiMo sonde can measure up to 20 water parameters thanks to a next generation smart digital sensor suite.

Connect and disconnect up to seven sensors whenever and wherever you need even with the functioning sonde on the field.

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At a glance

  • Digital smart sensors plug and unplug at will
  • Up to 20 water parameters measured
  • Proven cleaning system
  • Highest quality data standards for next generation accuracy
  • Long-lasting alkaline batteries
  • WiFi connectivity – compatible with all platforms
  • User-friendly interface easy to use embedded web interface
  • 3G / 4G solutions and other remote communication options
  • Light and robust
  • Easy to integrate on USV, ROV or AUV
  • Suitable for any type of support – light buoy, ladder, stake and pontoon.
  • Point To Point WIFI connectivity with switch magnet activation
  • Depth rating to 250m
  • 16MB of internal memory allowing storage of 500,000 measurements
  • Smart wiper cleaning system to prevent biofouling
  • Supports RS232 and RS485 MODBUS protocols for transmission
  • For use in freshwater and seawater applications

WiMo or WiMo Plus

Choose between two models: 4 or 7 sensor options available.

 

WiMo – 4 Locations 

Three sensors and wiper port (can be used for 4 sensors without wiper)

 

WiMo Plus – 7 Locations 

Six sensors and wiper port (can be used for 7 sensors without wiper)

Sensors made of sterner stuff 

Unlike competitors, NKE do not consider sensors to be a consumable product. They’re built to last, even in the harshest conditions.

Conductivity/Temperature

Calculated parameters: salinity, specific conductivity, sound velocity, total dissolved solids, chlorides

Full Specifications

Conductivity:

Technology: 4 carbon electrodes cell

Range: 0 – 100 mS/cm

Accuracy: 25µS or 0.5% of reading

Resolution: 0.001 mS/cm

Temperature:

Technology: Thermistor

Range: -2° to +35°C // -2° to +50°C in option

Accuracy: +/- 0.02°C // +/- 0.05°C

Resolution: 0.001°C

Turbidity

Based on the method of measuring diffuse radiation (nephelometry) meeting the ISO 7027 standard. Illumination is performed in the near infrared with a 90° detection of the emission angle.

Full Specifications

Technology: Nephelometric 90°

Range: 0 – 4000 NTU

Accuracy: 0.4 NTU or 5% of reading

Resolution: 0.01 NTU

Wavelength: 860 nm

Dissolved Oxygen

Optical technology; an LED excited oxygen-reactive membrane detects its oxygen-dependent luminescence emission by means of a photodiode.

Full Specifications

Concentration:

Technology: optical

Range: 0 – 23 mg/L (max: 0 – 44 mg/L)

Accuracy at 20% O2: +/- 0.1 mg/L

Resolution at 20% O2: 0.025 mg/L

Saturation:

Technology: optical

Range: 0 – 250% (max: 0 – 500%)

Accuracy at 20% O2: +/- 1% of reading

Precision at 20% O2: 0.25%

pH

The pH of pure water at 25°C, which is equal to 7, has been chosen as the reference value for a neutral medium.

Full Specifications

Technology: electrodes

Range: 0 – 14 pH units

Accuracy: 0.1 pH unit

Resolution: 0.01 pH unit

Fluorescence – Chlorophyll a

Chlorophyll a measurement is used as an indicator of phytoplankton biomass in natural waters. Measures in ppb.

Full Specifications

Range: 0-500µg/L

Resolution: 0.03µg/L

Linearity: R² > 0,99 for Rhodamine WT

λ Excitation: 470 nm

λ Emission: 694 nm

Redox / ORP

The value expressed in mV is measured in relation to an Ag/AgCl reference electrode.

Full Specifications

Technology: electrodes

Range: -1999 to +1999 mV

Accuracy: ±20 mV

Resolution: 0.1 mV

Max depth: 15 m

Nitrate

An electrochemical electrode and a Nitrate ion selective membrane and gives a value expressed in mg/L-N.

Full Specifications

Technology: electrodes and selective membrane

Range: 0 to 300 mg/L-N

Accuracy: 10% of reading or 2 mg/L

Resolution: 0,001 to 1 mg/L-N

Max depth: 15 m

Calibration made simple

The usb tool allows to connect a WiMo sensor to a computer to calibrate the sensor independently of a WiMo sonde.

It works with a dedicated software named “WiMo Calibration Tool”.

Optional Transmission Module

The 3G/4G modem allows the WiMo multiparameter probe to transmit its data using deployed 3G/4G networks.

  • – Autonomous 3G/4G modem
  • – Multi-operators
  • – GPS module to acquire a position of the system
  • – Long-lasting autonomy alkaline batteries
  • – Accessory in the user-friendly interface web embedded interface

InoView: data visualization platform

InoView is a multilingual platform that allows you to consult the data collected by NKE multiparameter probes in real time and instantaneously.

InoView is a platform accessible to all with a simple and easy to use interface. It allows the management of networks of several instruments in marine and freshwater environments:

  • – Real-time visualization
  • – User-friendly platform
  • – Alarm monitoring
  • – Customizable interface
  • – Secure access and data storage
  • – Export customized reports

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