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ECO FL

ECO FL fluorometers measure fluorescence from chlorophyll-a, CDOM, uranine, rhodamine, and phycoyanin and phycoerythrin.

The Environmental Characterization Optics (ECO) series of single channel fluorometers delivers both high resolution and wide ranges across our entire line of parameters using 14 bit digital processing. The ECO series excels in biological monitoring and dye trace studies. The potted optics block results in long term stability of the instrument and the optional anti-biofouling technology delivers truly long term field measurements. These fluorometers are relative measurement instruments and should be calibrated by cell counts for a particular water mass.

Chlorophyll-a
Chlorophyll-a fluorescence is an indicator of active phytoplankton biomass and chlorophyll concentrations. This measurement is used for tracking biological variability and abundance in the water column.

Colored Dissolved Organic Matter
The CDOM ECO allows you to obtain CDOM fluorescence across a wide range of environments, from mangrove swamps to oligotrophic blue water.

Uranine (fluorescein) & Rhodamine
The ideal combination of linearity, sensitivity and range for dye studies. Detection limits in parts per trillion allows for precise patch determination and first arrival timing as well as reducing the necessary initial dye concentration.

Phycoerythrin & Phycocyanin
ECO phycobilin fluorometers have the high resolution necessary for early detection of either blue-green (phycocyanin) or brown (phycoerythrin) algae.

 

Features

  •  Ships with ECOView Host software
  •  Analog and Digital Output
  •  Analog scaling to maximize analog resolution
  • Optional integrated Bio-wiper™ and/or copper faceplate for antifouling
  • Optional internal batteries and memory; over 100,000 samples
  • Full ocean depth model available

 

*The limit depth for ECO with Anti-fouling Bio-wiper™ and Internal Batteries (models B, S and SB) rated to 300 m.

MECHANICAL

Diameter 6.3 cm
Length (std) 12.7 cm
Weight in air 0.4 kg
Weight in water 0.02 kg
Pressure housing  Acetal copolymer

OPTICAL

Chlorophyll-a
470 nm EX/695 nm EM
Sensitivity 0.02 µg/l
Range 0-125 µg/I
CDOM
ex/em: 370/460 nm
Sensitivity 0.09 ppb
Range 0-500 ppb
Uranine
ex/em: 470/530 nm
Sensitivity 0.05 ppb
Range  0-400 ppb
Rhodamine
ex/em:518/595 nm
Sensitivity 0.03 ppb
Range 0-230 ppb
Phycoerythrin
ex/em:518/595 nm
Sensitivity 0.03 ppb
Range 0-230 ppb
Phycocyanin
ex/em: 630/680
Sensitivity 0.03 ppb
Range  0-230 ppb
Linearity (all)
99% R2

ELECTRICAL

Digital output resolution 14 bit
RS-232 output 19200 baud
Analog output signal 0-5 V
Internal data logging  optional
Internal batteries 

optional

Connector MCBH6MP
Input Voltage 7-15 VDC
Current, typical 50 mA
Current, sleep 140 µA
Data memory 108,000 samples
Sample rate to 8 Hz
Anti-fouling Bio-wiper™ optional

ENVIRONMENTAL

Temperature range 0 to 30 deg C
Depth rating  600 m (standard)
300 m (with optional bio-wiper)
6000 m (deep)

• FL(RT)—Provides analog or RS-232 serial output with 16,300-count (approximate) range. “Real Time” instruments provide continuous operation when powered.

• FL(RT)D—Provides the capabilities of the FL(RT) with 6,000-meter depth rating.

• FLS—Provides the capabilities of the FL with an integrated anti-fouling Bio-wiper™.

• FLB—Provides the capabilities of the FL with internal memory and batteries for autonomous operation.

• FLSB—Provides the capabilities of the FLS with internal memory and batteries for autonomous operation.

The list below includes (as applicable) the current product brochure, manual, and quick guide; software manual(s); and application notes.

Title Type Publication Date PDF File
ECO FL Datasheet Product Datasheet Friday, September 8, 2017 datasheet-ECO-FL.pdf
AN114 ECO Centroid Angles for Back Scatter Measurements Application Notes Tuesday, July 4, 2017 AN114-ECOCentroidAnglesforBackScatterMeasurements.pdf
AN122 ECO Calibration Log Template Application Notes Wednesday, July 5, 2017 AN122 ECOCalibrationLogTemplate.xlsx_.zip
AN105 Laboratory Experiments on Crude Oil Detection using ECO Fluorometers Application Notes Thursday, June 29, 2017 AN105 CrudeOilLabTestClientUpdate.pdf
AN103: ECO Battery Life Calculator Application Notes Friday, June 30, 2017 ECOBatteryLifeCalculator.xls_.zip
ECO with Batteries Drawing Product Drawing Tuesday, July 4, 2017 drawing-ECOwithBatteries.pdf
ECO Real-time Drawing Product Drawing Tuesday, July 4, 2017 drawing-ECO-Real-time.pdf
ECO Fluorometers and Scattering Sensors Manual [French] Product Manual Thursday, July 6, 2017 manual-ECOMasterbfr.pdf
ECO Fluorometers and Scattering Sensors Manual [German] Product Manual Thursday, July 6, 2017 manual-ECOMasterbde.pdf
ECO Fluorometers and Scattering Sensors Manual [English] Product Manual Thursday, July 6, 2017 manual-ECOMasterben.pdf
ECO Fluorometers and Scattering Sensors Manual [Spanish] Product Manual Thursday, July 6, 2017 manual-ECOMasterbes.pdf
AN102: Getting the Highest Resolution on your ECO Technical Note Thursday, June 29, 2017 GettingtheHighestResolutiononyourECO_v1.pdf
AN62: Calculating Calibration Coefficients for ECO-FL Fluorometer, ECO-NTU Turbidity Meter, and ECO-FL-NTU Fluorometer/Turbidity Meter Application Notes Saturday, May 14, 2011 appnote62May11.pdf

ECOView host software provides a graphical user interface that allows you to configure, collect, view, and upload data from a variety of ECO fluorometers.

Version 1.23 released April 9, 2013
ECOView123.exe for Windows 7/8/10


What should I use to lubricate bulkhead connectors?

WET Labs recommends keeping the connectors on your meter lubricated using a good quality silicone spray lubricant, such as 3M Silicone Spray or Loctite 8021 spray. These can be purchased at your local hardware store. Avoid silicone grease. It is messy and attracts contaminants.

Do not use WD-40. It will destroy connectors.

What type of batteries are in ECO's?


    •    We recommend the use of Lithium batteries in all of our ECO battery units.
    •    There is a very significant battery life increase in comparison with Alkaline cells.
    •    We use Ultralife Lithium +9V batteries.
    •    Ultralife has 3 different part numbers (used with different sales packaging) for the long-life batteries we use in our ECO's:
    ◦    U9VL
    ◦    U9VLX
    ◦    U9VLBP
    •    Ultralife batteries have Aluminum/Mylar housing providing:
    ◦    Protection against humidity and heat from entering the battery. Humidity and heat reduce efficiency and shelf-life.
    ◦    Batteries that are much more leak-resistant.
    •    Ultralife batteries have a 7-10 year shelf-life.
    •    The batteries are customer replaceable with easy access to the battery pack.
    •    The battery pack has 6 batteries: 2 layers of 3 +9V Lithium cells.

 

How do I get started using my new ECO?

How do I change the ASV resolution?

How do I change the ASV resolution?

See the following Technical Note: Getting the Highest Resolution on your ECO_v1 [PDF]

What is the back scattering angle of my ECO instrument?

WET Labs ECO Centroid Angles for Back Scatter Measurements

The WET Labs’ ECO sensors have multiple back scattering angles depending upon type of sensor. This document will describe these angles based upon the type of ECO sensor selected by the customer.

Single Channel Sensors:
Single channel ECO back scatter sensors have an in-water centroid angle of 124°.  These include the following ECO models: bb, NTU.

Dual Channel Sensors:
Dual channel ECO back scatter sensors (back scatter at 700nm paired with chlorophyll fluorescence) have an in-water centroid angle of 142°. These include the following ECO models: FLNTU and FLBB versions along with OEM variants of these sensors (AP2, 2K, SLC, RTD, SB variants).

Three Channel Sensors:
Three channel ECO back scatter sensors (individually paired LED source with detector) have an in-water centroid angle of 124°. These include the following ECO models: bb3, BBFL2, BB2FL and Triplet-w family.

Combined Three Channel Sensors:
WET Labs’ combined three channel ECO back scatter sensors (back scatter at 700nm paired with chlorophyll fluorescence along with either another back scatter or FDOM channel) have an in-water centroid angle of 124°.

These include the following ECO models:
FLBB-CD, FLBB-BB along with OEM variants of these sensors (2K, AP2, SLC, REM, BOSS, 6K). MCOMS and SeaOWL UV-A: WET Labs’ MCOMS and SeaOWL UV-A back scatter sensors (back scatter at 700nm paired with chlorophyll fluorescence along with either another back scatter or FDOM channel) have an in-water centroid angle of 150°.

What is the input voltage range for my instrument?

How do I protect my ECO from bio-fouling?

ECO instruments are designed for long term deployment capabilities with low power requirements, a large memory and an available Bio-wiper™. The Bio-wiper™ on the ECO was designed to protect the optical surface and has been very effective under most conditions.

If extra protection is required to prevent marine organisms from attaching to the instrument body near the optical head and interfering with the operation of the Bio-wiper™ we suggest using copper foil tape. The GoMOOS project developed a technique for their ECO sensors and WET Labs recommends this technique:

Apply electrical tape under the area where copper tape will be applied. This protects the meter from the significant adhesive residue of the copper foil tape.

Apply the copper tape to the prepped surfaces. There are different width copper foil tape options, with non-conductive adhesive, available from McMaster-Carr. NOTE: when applying the coper tape, the adhesive should not be touched. This will cause the tape to not stick to the electrical tape on the meter. When submerged in salt water, the copper will adhere more closely to the meter.

As long as the electrical tape is used, this technique does not violate the ECO warranty and WET Labs will service instruments that have had copper tape applied to them.

Important! Do NOT apply copper tape directly to the meter. Its adhesive is extremely difficult to remove. Meters returned to WET Labs wrapped in copper tape without the electrical tape preparation will have additional service charges applied.

 

What is the memory capability?

    •    Not included on the "RT" units!!
    •    The memory is stored in "Flash" memory, an integrated circuit chip on the electronic board set.
    •    There is no removable card, no upgrade in memory capacity.
    •    The total sample records available for a single channel ECO = 108,000.
    •    Typically, the ECO output is set to 1 sample/sec.