Eureka Manta

The Eureka Manta is a rugged, easy-to-use multiparameter monitoring sonde with highly customisable configurations.  The sonde comes in 7 different sizes which can accommodate up to 13 sensors.  With 24 available measurement parameters (see below), a Manta configuration can be specified for practically any purpose.  An optional handheld field display unit is available for spot checking or profiling, and the unit can be powered externally, or by using an optional battery pack for long term field deployment in remote locations.  The Manta can also be connected via RS-232 or SDI-12 to Eureka's Eagle-Eye Telemetry system, or any other third-party system to provide real-time water-to-web monitoring. 

Parameters:

Temperature

pH

ORP

Conductivity

Dissolved Oxygen (Polarographic or Optical sensors available)

Turbidity

Salinity

Ammonium

Nitrate

Chloride

Depth

Level,

Total Dissolved Solids

Total Dissolved Gases

Chlorophyll,

Rhodamine,

Blue-Green Algae and

Crude Oil.

Unit Sizes and Sensor Configurations Possible:

Sub2-ODO

Comes standard with 6 sensors in less than a 2" diameter housing. Includes Optical Dissolved Oxygen, Temperature, pH, Specific Conductance, ORP and Depth.

Manta2 - 2.0

Supports up to 3 sensors. Most popular configuration is the CTD (Conductivity, Temp, and Depth).

Manta2 - 2.5

Supports up to 5 sensors depending on sensor selection.

Manta2 - 3.0

Supports up to 7 sensors depending on sensor selection.

Manta2 - 3.5

Supports up to 10 sensors depending on sensor selection.

Manta2 - 4.0

Supports up to 14 sensor depending on sensor selection. 

Selected Sensor Data:

Dissolved Oxygen Optical

Eureka Environmental's Manta2 Luminescence Optical dissolved Oxygen Sensor has no replaceable membranes or caps.

Features:

• No replaceable membranes or caps
• Exceptional Accuracy 
• Luminescent Dissolved Oxygen technology
• No circulator required
• The EPA has recommended interim approval of ASTM International Standard Test Method D 888-05 for optical dissolved oxygen. See Memorandum
• Meets requirements of ASTM method
• Insensitive  to hydrogen sulfide (H2S) compared to polargraphic DO sensors
• No damage from sunlight
• Click here to see deployment from a six week deployment in the Gulf of Mexico
  
      Specifications:

Dissolved Oxygen (Polarographic)

Eureka Environmental's Manta2 - Dissolved Oxygen Sensor (Polarographic) has been the standard in the industry for 30 years and is EPA approved.

Features:

• Complies with Standard Methods Article 4500-AG and EPA Article 360.1
• Steady-State (Polargraphic) sensor has been trusted for over 30 years
• Circulator provides fast response time and fresh sample in low flow or stagnant waters
• Some manufacturers claim "flow independent" but state in fine print "low flow" an exception
• No "Reconditioning" of Sensor necessary

Specifications:

Turbidity

Eureka Environmental's Manta2 - 316 SS Turbidity sensor has a self-cleaning wiper that is user programable up to 5 wipes to remove biological growth or debris.

Features:

• Accurate up to 3000 NTU's
• ISO 7027 Compliant
• Integrated Wiper (Default 1 Wipe)

Specifications:

Chlorophyll

Eureka Environmental's Manta2 Chlorophyll a sensor accurately measures in 3 ranges from 0.03 to 500 ug/L.

• 
• Adjustable Secondary Standard available for calibration and quick check
• Ambient light rejection circuitry and fast response time
• Turbidity rejection and compact design

Specifications:

Blue-Green Algae

The Eureka Environmental Blue-Green Algae sensor accurately measures in 3 ranges from 0 - 2,000,000 cells/mL Cyanobacteria (phycocyanin or phycoerythrin). 
Features:

• Provides accurate measurement of phycocyanin or phycoerythrin using electronic filtration of ambient light and high quality optical components
• Identifies potential algae blooms and provides substantial cost savings by eliminating cell counting.

Specifications:

Rhodamine

Eureka Environmental's Manta2 Rhodamine sensor accurately measures in 3 ranges from 
0.04 to 1000 ppb
Features:

• Available with secondary standard (solid calibration cube) for quick and accurate calibration
• Solid Calibration Cube can be adjusted to correlate to known dye concentration
• Ambient light rejection and optical coupling make for accurate readings and fast response time
• Small sample size volume design and high quality optics provide turbidity rejection

Specifications:

Depth

Eureka Environmental's Manta2 - Depth Sensor is characterized to be extremely accurate with durable SS pressure transducer

Features:

• Available in 5 ranges from 0 - 200 meters
• Available in absolute or vented (stage)
• Automatic temperature and salinity compensation
• Measures accurate barometric pressure for ease of Dissolved Oxygen calibration

Temp

The Eureka Environmental Manta2 temperature sensor is a accurate 30k ohm thermistor. Each Manta2 multiprobe includes a temperature sensor.

Features:

• 316 Stainless Steel housing, 30k ohm thermistor
• In addition to highly accurate temperature measurements, the temperature sensor is used to provide compensation for Specific Conductance, Dissolved Oxygen, pH, and Ion Selective Electrodes.
• Manta2 Temperature Sensor is compliant with EPA170.1 and SM2550B

Specifications:

pH

Eureka Environmental's Manta2 - pH Sensor w/ rebuildable reference is easy to maintain and typically last more than 5 years.

Features:

• Glass bulb with KCL fill permeable to Hydrogen Ions
• Separate rebuildable reference w/ Teflon junction - No Sensor to replace
• Easy to maintain sensor
• Reference is good for low ionic strength waters

Specifications:

Conductivity

Eureka Environmental's Manta2 - 4-Electrode Graphite Conductivity Sensor with open flow architecture requires virtually no maintenance. Very accurate sensor for Conductivity, Specific Conductance, Salinity and TDS

Features:

• Accurate up to 100,000 uS/cm
• Open flow graphite prevents sediment fouling
• Automatic Temperature compensation

Specifications:

Ammonia

The Eureka Environmental Manta2 Ammonia Ion Selective Electrode with replaceable plasticized tips and has a maximum depth of 25 meters.
Features:

• Easy replaceable tips
• Submersion Depth and Reliablity highest in the industry
• Automatic Caculation of Ammonia and Total Ammonia Concentrations
• Designed for Agricultural Industry and Fertilizer runoff in fresh water
• Ammonia ISE's will not work in Sea water and interfering ions will effect reading

    Specifications:

Nitrate

The Eureka Environmental Manta2 Nitrate Ion Selective Electrode with replaceable plasticized tips and has a maximum depth of 25 meters.
Features:

• Easy replaceable tips
• Submersion Depth and Reliablity highest in the industry  (Good to 25 Meters)
• Automatic Correction for of Temperature and Automatic Compensation for Ionic Strength Concentrations
• Designed for Agricultural Industry and Fertilizer runoff in fresh water
• Ammonia ISE's will not work in Sea water and interfering ions will effect reading

    Specifications:

Chloride

The Eureka Environmental Manta2 Chloride Ion Selective Electrode with replaceable plasticized tips and has a maximum depth of 25 meters.
Features:

• Easy replaceable tips
• Submersion Depth and Reliability highest in the industry
• Automatic Correction of Temperature
• Good for the measurement of salt intrusion or as an effective tracer for pollution

Specifications:

Datasheet