Zenocean

AquaSense-Chl

Modulated fluorescence chlorophyll-a sensor with coherent detection, self-cleaning option, and RS485 / Modbus output for algal biomass and water-quality monitoring.

AquaSense-Chl uses modulated excitation and coherent detection to deliver sensitive, drift-resistant chlorophyll-a fluorescence measurements. The reagent-free optical method enables unattended, low-impact monitoring, and the optional self-cleaning brush keeps the optical window free of biofilm for long-term deployments.

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AquaSense-Chl chlorophyll-a fluorometer

Modulated Fluorescence

Modulated excitation and coherent detection lift sensitivity and rejection.

Reagent-Free

Optical method without chemicals or consumables.

Self-Cleaning Option

Wiper accessory prevents long-term biofouling on the optical window.

Continuous Monitoring

Stable readings for long-duration in-situ deployments.

Modulated Fluorescence

Modulated excitation and coherent detection lift sensitivity and rejection.

No Reagents

Reagent-free measurement keeps the unit clean and environmentally friendly.

Self-Cleaning Wiper

Built-in cleaning device protects long-term stability against biofouling.

RS485 + Modbus

Digital RS485 output with Modbus RTU for logger and PLC integration.

Continuous Monitoring

Designed for unattended in-situ deployments on buoys and stations.

Stable & Sensitive

Optimised optics deliver low detection limits with low drift.

Overview Specifications Parameters Resources Accessories Support

AquaSense-Chl Overview

AquaSense-Chl is an optical chlorophyll-a fluorometer that uses modulated excitation and coherent detection to lift sensitivity and reject ambient light. The reagent-free optical method avoids consumables and chemical waste, and the optional self-cleaning brush keeps the optical window free of biofilm for long-term deployments — even in highly productive water.

The probe outputs RS485 with the Modbus RTU protocol, making it a drop-in fit for AquaSense-Multi multi-parameter sondes and OceanBuoy / OceanBed observation systems. It is widely used for algal-biomass tracking, harmful-algal-bloom monitoring, and ecological water-quality research.

AquaSense-Chl Product Image

AquaSense-Chl chlorophyll-a fluorometer
Primary view of the AquaSense-Chl optical chlorophyll-a fluorometer.

AquaSense-Chl Key Specifications

Parameter
Value
Measurement Principle
Modulated fluorescence with coherent detection
Reagent-free
Excitation Wavelength
470 nm (blue LED)
Optimised for chlorophyll-a
Emission Wavelength
685 nm
Chlorophyll-a emission band
Chlorophyll Range
0 to 400 µg/L
Selectable sub-ranges
Resolution
0.01 µg/L
Output resolution
Accuracy
±5% of reading or ±0.3 µg/L (whichever greater)
After calibration
Cleaning
Optional self-cleaning brush
Anti-biofouling
Temperature Range
0 to 45 °C
Water temperature
Output
RS485, Modbus RTU
Default digital interface
Power Supply
DC 9-24 V
Low-power operation
Ingress Protection
IP68
Submersible body
Cable Length
10 m standard, customisable
Submersible cable
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AquaSense-Chl Supported Parameters

Measured Parameters

Chlorophyll-a (µg/L) Water Temperature

Output Options

RS485 Modbus RTU

Power Options

DC 9-24 V

Environmental

0-45 °C IP68 Submersible Self-cleaning option

AquaSense-Chl Resources and Downloads

Product Datasheet

Specifications, configurations, and deployment ratings for project planning.

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Integration Guide

Wiring, protocol notes, and mounting guidance for platform integrators.

Email Support

Calibration & Maintenance

Recommended verification, calibration, and servicing workflow.

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AquaSense-Chl Accessories

Calibration Solutions

Standard buffer and reference solutions for routine calibration.

Cable & Junction Box

Submersible cabling and weatherproof junction options for field wiring.

Mounting Hardware

Probe guards, flow cells, and pole or buoy mounting adapters.

AquaSense-Chl Support and Deployment Guidance

Wiring and protocol assistance for RS485 / Modbus RTU integration.

Integration support for sondes, buoys, fixed stations, and process panels.

Calibration, field-verification, and long-term maintenance planning.

Application support for freshwater, brackish, marine, and industrial deployments.

AquaSense-Chl Frequently Asked Questions

What is AquaSense-Chl?

AquaSense-Chl is modulated fluorescence chlorophyll-a sensor with coherent detection, self-cleaning option, and RS485 / Modbus output for algal biomass and water-quality monitoring. AquaSense-Chl uses modulated excitation and coherent detection to deliver sensitive, drift-resistant chlorophyll-a fluorescence measurements. The reagent-free optical method enables unattended, low-impact monitoring, and the optional self-cleaning brush keeps the optical window free of biofilm for long-term deployments.

What parameters does AquaSense-Chl support?

AquaSense-Chl supports Chlorophyll-a (µg/L), Water Temperature, RS485, Modbus RTU, DC 9-24 V, 0-45 °C, IP68, Submersible, and other configured parameters.

Where is AquaSense-Chl typically used?

AquaSense-Chl is typically used for Surface water, groundwater, and reservoir monitoring, Aquaculture farms and hatcheries, Municipal water supply and wastewater treatment, Environmental compliance and pollution control.

What systems work with AquaSense-Chl?

AquaSense-Chl can be configured with AquaSense-Multi Multi-Parameter Sonde, OceanStations, CoreLink Telemetry and related Zenocean monitoring platforms or telemetry systems.

What support is available for AquaSense-Chl?

Zenocean provides configuration, integration, deployment and maintenance guidance for AquaSense-Chl projects.

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Trusted by Experts

Used by researchers, engineers, and operators worldwide.

Built for Water

Designed for reliable freshwater, brackish, and marine service.

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