DFRobot
DFRobot RS485 Industrial Residual Chlorine Sensor
· MPN: SEN0712
This industrial-grade residual chlorine sensor is designed for precise, reliable water quality monitoring in demanding environments. Its integrated probe and...
This industrial-grade residual chlorine sensor is designed for precise, reliable water quality monitoring in demanding environments. Its integrated probe and housing measure residual chlorine concentrations, specifically hypochlorous acid and hypochlorite ions, over a 0 to 10 mg/L range.
The sensor communicates over RS485 and supports the standard ModBus-RTU protocol, making it suitable for industrial IoT systems and remote monitoring setups. DFRobot provides tutorials for use with Arduino development boards and DFRobot LoRaWAN networks to help with environment setup and real-time data monitoring.
Each unit is factory-calibrated for immediate use without secondary calibration on installation. The IP68 waterproof rating supports prolonged continuous underwater submersion, making it suitable for tap water monitoring, drinking water treatment, swimming pool disinfection systems, smart agriculture and aquaculture monitoring.
Included in the package are the RS485 Water Quality Chlorine Residual Sensor x1, 5m sensor cable x1, electrode protective solution 100ml (3.3mol/L KCl) x1, black protective mesh x1 and cable ties x2. The probe cap is sealed with 3.3mol/L KCl protective liquid; occasional seepage may form white crystals, which is a normal chemical occurrence and does not compromise the probe lifespan or accuracy.
Features:
- Factory-Calibrated: Ready for immediate deployment with no secondary calibration required.
- High-Precision Measurement: Range of 0~10 mg/L with a resolution of 0.01 mg/L and an accuracy of ±5%FS.
- Standardized Industrial Communication: Built-in RS485 interface fully compatible with the ModBus-RTU protocol.
- Rugged Durability: Integrated housing design with an IP68 waterproof rating for continuous submersion.
Specifications:
- Power Supply Voltage: 10~30V DC
- Power Consumption: 0.2W
- Communication Interface: RS485 (Standard ModBus-RTU Protocol)
- Measurement Range: 0~10mg/L
- Measurement Error: ±5%FS
- Repeatability Error: ±0.05mg/L
- Resolution: 0.01mg/L
- Response Time: ＜30S
- Operating Temperature: 0°C~+50°C
- Waterproof Rating: IP68
- Pressure Resistance: 0.6MPa
- Cable Length: 5m
- Housing Material: Corrosion-resistant Plastic
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Plain-language definitions for the technical terms used above.
- IoT
- Short for Internet of Things, meaning physical devices that connect to networks or the internet to send data or be controlled remotely. It matters if you want projects such as connected sensors, remote controls or classroom data-logging activities.
- Modbus
- Modbus is an industrial communication protocol used by many meters, sensors, PLCs, and automation devices. Modbus support matters because it can make the controller easier to integrate with existing industrial equipment.
- ModBus-RTU
- ModBus-RTU is a common industrial protocol for sending sensor readings and control commands over serial links such as RS485. Knowing the sensor uses ModBus-RTU helps you choose software libraries, data loggers, or controllers that can request and interpret its readings.
- RS485
- RS485 is a robust wired serial communication standard often used in factories, farms, and buildings where cables may be long or electrically noisy. It matters because it lets this controller connect to industrial sensors, meters, and control equipment over longer distances than typical hobby serial wiring.
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Supplier page — dfrobot.com
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