The 8-CH-200 online self cleaning bracket is a supporting auxiliary device designed specifically for water quality monitoring digital sensors. It integrates automatic cleaning and multi-sensor compatible installation functions, which can effectively remove sensor surface contamination, prevent microbial adhesion, significantly reduce sensor maintenance frequency, and is compatible with dissolved oxygen pH、ORP、 The long-term online monitoring requirements of various types of digital sensors such as conductivity and turbidity are widely used in various water quality monitoring scenarios such as industrial water treatment and environmental monitoring.
★★★★★
Parameters
| Item | Specification |
|---|---|
| Operating Temperature | -5 ~ 50℃ |
| Power Supply | 12 ~ 24VDC |
| Cable Specification | Φ6mm, 4-core, 5m standard (customizable) |
| Installation Size | 85mm×85mm×20mm |
| Working Power Consumption | 0.1W@12V |
| Mounting Thread | 3/4”NPT |
| Clamp Adaptation | Φ25~Φ30 |
| Default Cleaning Parameter | 3 clockwise & 3 counterclockwise rotations, 30min interval |
| Communication Protocol | Modbus-RTU (9600, N, 8, 1) |
| Cable Type | 4-core twisted shielded wire |
| Adapted Sensors | DO, pH, ORP, Conductivity, Turbidity digital sensors (max 4 pcs) |
Why choose 8-CH-200 digital sensor?
- The motorised cleaning brush removes sensor surface stains, inhibits microbiological adhesion, and reduces manual maintenance;
- Up to 4 digital sensors can monitor dissolved oxygen, pH, ORP, conductivity, turbidity, and other parameters for complete water quality monitoring.
- Very versatile, easy to install: The sensor’s peripheral installation simplifies disassembly and assembly. Top 3/4″ NPT thread for fast installation. Ultrasonic cleaning heads and jet tubes are available.
- Wide temperature operation for difficult working circumstances, energy-efficient low-power operation, cable support modification, flexible job site installation distances;
Featured Applications
- Industrial circulating water systems: Long-term online multi-parameter water quality monitoring with automatic cleaning
- Sewage treatment: Water quality monitoring of tanks/pipelines in high-contamination working conditions
- Environmental water quality monitoring: Long-term outdoor monitoring of rivers, reservoirs and drinking water sources
- Chemical/ pharmaceutical water treatment: Stable operation of sensors in complex industrial water quality environments
Core functions and operations
Automatic cleaning function
The device is equipped with an automatic cleaning device consisting of a DC motor and a cleaning brush, which automatically cleans every 30 minutes by default. The cleaning brush rotates 3 times in both directions; It is advisable to have a close contact between the cleaning brush and the sensor measurement area to avoid scratching the sensor too close or affecting the cleaning effect too far away.
Installation and wiring
Installation requirements
Adopting pipeline installation, the installation thread is 1 “NPT (1-inch pipe thread), and the water flow direction should be perpendicular to the distance between the two electrodes to avoid installing the probe in a static process fluid. It is recommended to ensure that the fluid flow rate is consistent with the actual production process to prevent measurement errors; During installation, it is necessary to correctly install the two corrosion test electrodes and sealing rings into the sensor, and it is strictly prohibited for water to enter the aviation plug on the upper end of the sensor.
Communication and parameter settings
- The cable is a 4-core twisted pair shielded wire, with line sequence definitions: red – power+, black – ground, blue -485A, white -485B;
- The blue/white lines are communication lines, which are not led out by default. When cleaning parameters need to be modified, they can be peeled off by themselves and debugged through the 485 interface;
- Support for modifying device address, cleaning interval time (6-6000 minutes), cleaning speed (0-10 revolutions), and one click reset to restore default parameters.
Installation requirements
- The equipment is fixed by the upper 3/4 “NPT thread, and the sensor is installed on the periphery of the bracket with a clamp that is compatible with sensors ranging from 25 to 30;
- All wiring connections must be waterproofed, and user cables must have anti-corrosion capabilities to avoid long-term immersion/exposure that may cause malfunctions;
- Strictly check the wiring sequence before powering on to prevent equipment damage caused by wiring errors.
Technical Support
Top 6 Industrial Gas Analyzers Manufacturers 2025
6 Best Industrial Gas Detector Manufacturers in the World
9 Best Portable Carbon Dioxide Detector 2025 – Complete Buying Guide
Top 7 portable combustion analyzer Tested
The 8-CH-200 online self-cleaning bracket has the core advantages of automatic cleaning, multi transmission compatibility, and convenient installation, perfectly solving the pain points of easy contamination and tedious maintenance of water quality monitoring sensors during on-site use. It provides solutions for dissolved oxygen pH、 The long-term stable operation of various digital sensors such as turbidity provides reliable guarantee.
Request a Quote
