Continuous Monitoring Station

download manual   Continuous soil flux monitoring system .
download brochure  Continuous soil flux monitoring system

The instrument allows measurement of the soil degassing of carbon dioxide, hydrogen sulfide, methane and of the related environmental parameters.

applications:

• in vulcanology to understand the dynamics of volcanoes and for a global evaluation of the hazard connected with volcanic activity;
• monitoring of geothermal areas;
• soil respiration;
• survey of landfill biogas emissions.

flux measurement range:

• carbon dioxide: from 0 up to 1500 moles/sm/day;
• methane : from 0.5 up to 150 moles/sm/day;
• hydrogen sulfide : from 0.0025 up to 0.5 moles/sm/day.

This is a completely automatic station which performs the measurements cycle (up to 48 measurements per day), acquires and stores the data on a non-volatile memory. By means of a telemetry system the data can be transferred to a Reception Center up to 20 miles away, or can be anywhere on the planet by using our innovative internet based telemetry systems.

Stations in use around the world...

The soil flux station is able to measure:

• Carbon dioxide diffuse flux from soil by means of the accumulation chamber method and a LICOR CO₂ or DRAGER IRCO₂ detector.
• Hydrogen Sulphide diffuse flux from soil by means of the accumulation chamber method and a WEST Systems electrochemical detector.
• Methane flux means of the accumulation chamber method and a infrared absorption detector.
• Carbon Dioxide concentrations
• Air temperature / Relative humidity
• Wind speed and direction / Sonic wind gauge
• Soil temperature
• Soil water content by means of TDR technology
  Barometric pressure

Other parameters such as H₂S concentration, solar radiation, rainfall, soil gas pressure gradient, up to a maximum of 36 sensors.

DRAGER Polytron IR CO₂

Working principles: Double beam IR Detector with solid state sensor compensated in temperature, without moving parts.

• Full scale :Range 2000 ppm ~ 100% configurable by the operator.
• Accuracy 3% of reading for > 350 ppm
• Signal noise: 1% of reading pk-pk noise Out 4~20 mA linearized.
• IP63 Case with anti spray protection IP65.
• Operating temperature : between -20 and +65 °C.
• Air relative humidity 0~95%.

Ref. code: CO2IRD

Meteorological parameters

• Wind speed & direction: Biaxial sonic sensor;
• Air Temperature & Relative Humidity :: Solid state sensor;
• Soil water content (Time domain reflectometer)
• Soil temperature :: pt100 platinum probe;
• Barometric pressure;
• Rain fall gauge ;
• Other phisical / chemical parameters on request;

TOX-05

Working principles: Solid state sensor compensated in temperature, without moving parts.

Avalaible for:

• CO Carbon monoxide 100 ppm
• H2S Hidrogen sulfide 20 pm
• SO2 Sulfur dioxide 100 ppm

• Full scale : Depending on gas type Out 4~20 mA linearized..
• Working temperature : between -20 and +65 °C.
• Air relative humidity 0~95%

Ref. code: TOX05-xxx

The accumulation chamber unit

• Solid passivated aluminium construction, good protection against corrosion ;
• Improved collar for the hermetic seal when the chamber is in measurement position;
• Diameter : 300mm;
• Laboratory and field tests demonstrated a high repeatability of the measurement performed in any meteorological condition.

Ref. code: ACE