C-FLUOR Submersible Probes
C-Fluor Probe
C-FLUOR Submersible Probe
Cyclops-7 Logger

C-FLUOR Submersible Probes

C-FLUOR  are sensitive, extremely low power single wavelength in situ fluorescence and turbidity probes available in several optical configurations spanning a broad range of applications.  Factory-calibrated, each C-FLUOR ships with a calibration certificate used to convert the output signal to a specific concentration estimate.  The Titanium construction allows for a depth rating of 2,000 meters as well as superior resistance to corrosion.  Analog C-FLUOR Probes are pin-compatible with Cyclops Sensors so they are easily integrated into many of the same third-party systems that accept 0-5V signal.  Digital C-FLUOR Probes can be integrated with dataloggers that accept ASCII data strings.

Product Highlights:
Technical Documentation

What is C-FLUOR?

Comparing C-FLUOR to Cyclops-7F

HAB Monitoring Made Easy

Accessories & Spare Parts


Standards & Tracer Dyes


Frequently Asked Questions

When should I use my Shade Cap?

We recommend use of the shade cap as it provides a fixed distance for sample measurement and minimizes affects from ambient light. The Shade Cap also offers protection for the optics and prevents damage from deploying, recovering, or transporting the instrument, in fast-flowing environments, and/or from bottoming out in shallow environments.

How can I power and collect data from C-FLUOR?

Our C-FLUOR probes are analog output fluorometers that output voltage only, data can be collected via any datalogger that accepts a 0-5 volt analog signal. We sell a DataBank Handheld Datalogger, compatible with C-FLUOR, for easy data collection in the field.

C-FLUOR probes can be powered using any 3-15 volt power source. The analog sensors can output measurements as long as there is power supplied. The DataBank allows for continuous measurements at a maximum sample rate of 1 second.

Can C-FLUOR be integrated into CTDs, ROVs, or AUVs?

Yes, C-FLUOR can be integrated with any AUV, ROV or system that will accept a 0 to 5 VDC analog input and has a maximum depth rating of 600 meters. View our user's manua l for more information on C-FLUOR probes.

What preventative maintenance or care should always be done before deploying my C-FLUOR?

To protect your bulkhead connector from damage, a light coat of Silicone spray should be used on the rubber of the male pins of the bulkhead to aid in sealing. The manufacturer recommends 3M™ Silicone Lubricant Spray or Loctite 8021 spray. Note: You should avoid using silicone grease. DO NOT USE WD-40 - it will destroy the connectors.

What turbidity standards should I use for the C-FLUOR?

AMCO/GFS has turbidity standards for use with the C-FLUOR. Standards can be purchased directly from GFS Chemicals utilizing the information below.

Part Number 8621 - 3000 NTU Standard

GFS Chemicals, Inc.
3041 Home Road
Powell, OH 43065

Phone: 877-534-0795 (U.S. and Canada)
Website: http://www.gfschemicals.com/statics/index.html

If I want to tow C-FLUOR through a Rhodamine plume, how fast will the sensor respond? What is the instrument response time?

If power is supplied to the C-FLUOR continually, the data output rate for analog data output is 0.6 seconds

How does the blue green algae sensor or the chlorophyll sensor eliminate the influence of turbidity?

The C-FLUOR uses high quality interference filters to eliminate light scatter which may be read as turbidity.

At what distance from the end of the sensor is the measurement taken?

The C-FLUOR can detect materials as far away as 3 inches from the sensor head, which is why Turner Designs recommends at least a 3 inch (7.62 cm) clearance from the optical head when taking measurements. An exception to this would be if you are using the shade cap, as the shade cap is designed as an optical “backstop” for the sensor.

What angle does the C-FLUOR need to be to take a measurement?

Keeping the instrument as close to vertical as possible is recommended.

How much liquid will the C-FLUOR flowthrough cap hold?

The C-FLUOR flowthrough cap will hold 5mL of fluid.

Where can I find information about the C-FLUOR applications and optical specifications?

Please refer to the Optical Specification Guide.

Where can I find instructions on how to install the C-FLUOR Flow Through Cap?

Instructions are available here

Where can I find information about C-FLUOR cables?

Please refer to the Cable Guide.

What is the volume (size) of the area (or the control volume) that C-FLUOR takes the reading from?

We recommend at least a volume of 38 cubic inches for calibration to assure that light interference is minimized.

How can I monitor Algal Growth in 25mm test tubes?

View technical note here

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