NKE

NKE Instrumentation

NKE Instruments manufacture a range of economical submersible instruments for in-situ measurements, suitable for both research and operational activities. They work closely in France with the Ifremer and CNRS institutes and have developed specialist equipment for Fisheries, Sediment studies and heat-flow monitoring as well as systems to measure corrosion and cathodic protection. They have recently redesigned the range of instruments and introduced the WiSens & WiMo models.


WiMo & WiMo plus

Autonomous multi-parameter probe for Conductivity, Temperature, Depth, Turbidity, Fluorescence, Dissolved Oxygen, pH, etc

Characteristics

4 or 7 positions for plug & play sensors.  Integrated anti-fouling wiper.
Built-in software accessible via web-browser
WiFi or Modbus connectivity
Rechargeable batteries
250m depth rating

Applications
Water quality control, environmental survey and monitoring in shellfish farming

WiMo

WiSens
Autonomous range of data logging sensors for combinations of Salinity, Temperature, Pressure (Depth), Tides & Waves, Dissolved Oxygen, Turbidity and Acceleration.

The new WiSens family from NKE Instrumentation have WiFi embedded within the instrument that can be accessed via any web-browser on any WiFi enabled device (laptop, tablet, phone).

Internal software means no dedicated interface programme is required and they are simple to set-up, use and download.

They are compact and robust, suitable for applications where mid-range accuracy is required. A user-changeable, high capacity D cell lithium battery can provide power for several years of use (depending on sampling rate). 16MB memory for >2 million readings.

 

WiSens CTD 50 or 300 Conductivity, Temperature & Depth 315mm x Ø 40mm 435g
WiSens TD 50, 500 or 1000 Temperature & Depth 230mm x Ø 40mm 325g
WiSens TD 6000 Temperature & Depth 265mm x Ø 40mm 690g
WiSens Wave 10 or 50 Temperature & Depth (Tide & Waves) 230mm x Ø 40mm 325g
WiSens TBD 50 or 500 Turbidity, Temperature & Depth 320mm x Ø 40mm 400g
WiSens AD 6000 Acceleration & Depth 261mm x Ø 40mm 700g
WiSens DO Dissolved Oxygen, Temperature, Depth 320mm x Ø 40mm 400g

Altus

Submersible altimeter & data logger for sediment monitoring

ALTUS allows the study of mudflats or beach level variations according to tidal currents and swell. This high frequency acoustic data-logger is equipped with a 2 MHz transducer located on a light frame at a given distance from the seabed.

ALTUS can also be used as a tide gauge thanks to its accurate pressure sensor.

  • Light and compact – Easy to deploy
  • Fast wireless configuration and data collection using Inductive Data Pencil interface via a PC USB port using Winmemo software
  • Dedicated transducer frame is available

SMATCH
Operational remote-transmission multi-parameter probe

CharacteristicsNKE SMATCH DSC00239
Available parameters:
Depth: range 0 to 20m; accuracy < 0.06m; resolution 0.006m
Temperature: range -5°C to +35°C; accuracy <50m°C in the range 0-20°C; resolution 1m°C at 10°C
Conductivity: range 0 to 70 mS/cm: accuracy <0.05 mS/cm in the range 0 to 60 mS/cm; resolution 0.0012 mS/cm
range 0 to 2000 µS/cm: accuracy 5 µS/cm; resolution 0.04 µS/cm Salinity:

range 2 to 42 PSU at 20°C: accuracy ±0.1 PSU;
range 0 to 1.137 PSU at 20°C: accuracy <0.002 PSU; 

Dissolved Oxygen
Saturation: range 0 to 120%; accuracy < 5%
Concentration: 0 to 16mg/l; accuracy < 5%
Turbidity: Range (configurable at works) 25, 125, 500 or 750 FTU / 2.5 FTU on demand (non-linear above, max. 1500 FTU) – Seapoint Optical Sensor

Fluorescence: Chlorophyll a – Turner Design optical sensor
pH: Range 0 to 14pH Resolution 0.0003pH
Time: Internal clock with calendar (clock drift<1mn/month)
Energy autonomy: Depending on transmission, measurement and chlorination periods, examples for TI or TD type: 12 months with standard chlorination and daily data transmission.
Memory: 4Mb
SMATCH: diameter: 110 mm length: 425mm weight: 3.6kg
Buoy equipped with SMATCH, max. sizes: diameter.: 26cm length: 1750cm weight:11kg

Applications

Water quality control, environmental monitoring, monitoring in oyster culture zones, salinity and turbidity measurements for adjustments of hydrodynamical models.

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