1. Overview

Chromatic electrode is an intelligent electrode that uses RS485 communication interface and standard ModBus protocol, and comes with a built-in cleaning brush. It can effectively eliminate the interference of external environmental light and suspended solids, and quickly respond to changes in water bodies.

This electrode is based on coherent detection technology and has advantages such as high accuracy, good stability, no need for preprocessing, and fast measurement Point. one Beam measurement effectively reduces turbidity interference; Comes with a cleaning brush to avoid attachment. Randomly attach data pointsAnalysis software with calibration, recording, analysis, and diagnostic functions.

1.1 Product Features

ØIn situ calibration, adaptable to a wide range of environments;

ØUsing modulated light signals that are not affected by environmental brightness;

ØNo need for chemical reagents, no secondary pollution;

ØQuick measurement, response time less than 10 Seconds;

ØHas self-cleaning function, removes attachments from water samples, maintenance free;

ØUltra bright light source, high signal-to-noise ratio, strong stability;

ØCorrosion resistant casing, waterproof ratingIP68， Can work underwater for a long time;

ØRS485Communication interface, standardModBus protocol, easy to integrate;

1.2 Main purpose and scope of application

Suitable for tap water, small water stations, surface water, river sections, urban inland rivers, black and odorous water bodies, lakes and reservoirs, municipal sewage, seawater monitoring, sewage outlet monitoring, water aquaculture monitoring, etc.

1.3 Environmental conditions for use

Temperature: (-10~60) ℃; Pressure: （0-2）bar

2. Working principle

Colorimetric electrodes can effectively calculate the interference of suspended matter and chromaticity on measurement by simultaneously measuring the absorbance of reflected light and suspended matter.

Colorimetric electrode, no need for chemical reagents, no secondary pollution, can quickly reflect changes in water quality. By using modulation and coherent detection techniques, the measurement accuracy, stability, and anti-interference ability can be effectively improved.

3 Technical indicators

3.1 Main Performance

Measurement parameter chromaticity electrode

Working principle: Chromaticity

Measurement wavelength of visible light (380nm-780nm)

Measurement range (0.1~500.0) degrees

Measurement accuracy of 0.1 degrees

Resolution of 0.1 degrees

Communication interface RS485, standard Modbus protocol

Size specification D35mm, L184mm， Cable 2 meters (customizable)

Working environment (-10~65) ℃, (0-2)bar

Working voltage 12V/24V DC

3.2 External dimensions