W510-DCH10.1 for Endoscope Disinfection Application of the German Reiss CH10 achtive chlorine Sensor with the W510 Controller in Medical Equipment Sterilization Background
In medical sterilization, preventing cross-infection requires precise control of chlorine-based disinfectants, commonly used for endoscopes and surgical instruments. Total chlorine concentration must remain within 500–2000 mg/L—too low results in incomplete disinfection, while excessive levels can corrode equipment or leave harmful residues. A real-time, high-precision monitoring and control system is essential to ensure both sterilization safety and device protection.
Solution & System Configuration
To meet the high-chlorine monitoring requirements of medical disinfectants, the German CH10 chlorine sensor is paired with the W510 controller. The DCH10 delivers accurate chlorine measurement, while the W510 handles data processing, display, alarms, and automated control—together forming a fully integrated disinfection management system.
Key Features & Process Compatibility
| Device | Key Features | Fit for Disinfection Process |
|---|---|---|
| CH10 Sensor | Membrane-covered amperometric 2-electrode system; free chlorine measurement (pH-dependent); range 20–2000 ppm, 1 ppm resolution; 4–20 mA output; 0–45°C; pH 5–8; strong resistance to surfactants | Ideal for high chlorine levels (500–2000 mg/L); withstands surfactants in disinfectants; matches ambient-temperature operation and mildly alkaline pH |
| W510 Controller | LCD display; accepts 4–20 mA input; freely set measurement ranges; high/low alarms; 3 relay outputs with adjustable hysteresis; supports dosing/dilution control; multiple auto-calibration modes | Provides real-time display and alarms; automates dosing/dilution; simplifies calibration and ensures long-term accuracy |
Operating Principle
The CH10 continuously measures chlorine concentration and outputs a 4–20 mA signal to the W510. The controller displays real-time values, triggers alarms, and actuates dosing or dilution devices.
Below 500 mg/L → dosing pump starts
Above 2000 mg/L → dilution system activates
RS485 communication allows remote monitoring, while automated calibration ensures ongoing measurement accuracy.
Application Results
Endoscope Disinfection
Maintains chlorine at 1000–1500 mg/L
When concentration drops to 800 mg/L, the system automatically doses disinfectant and restores 1200 mg/L within 5 minutes
Disinfection pass rate increased from 93% to 100%
Surgical Instrument Disinfection
Automatically corrects over-concentration (e.g., from 2100 mg/L to 1800 mg/L in 3 minutes)
Monthly auto-calibration reduces manual workload by 60%
Measurement error ≤1%, meeting stringent medical QC requirements
Equipment corrosion reduced 55%, consumables cost down 25%
Overall Benefits
Safety: Stable chlorine control eliminates cross-infection risks
Efficiency: Automation shortens disinfection time by 30%
Cost Reduction: Optimized disinfectant usage and reduced corrosion lower annual costs by 35%
The CH10 + W510 solution delivers highly reliable, process-ready chlorine monitoring for medical sterilization systems, ensuring both patient safety and equipment longevity.
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