Description
Product Specifications
- Brand: Techcross
- Model: TCL4ECS
- Part Number: 20040T
- Measurement Range: 0 to 10 mg/L (ppm) Total Residual Oxidants (TRO)
- Power Supply: 24V DC / 100–240V AC (System dependent)
- Output Signal: 4-20mA Analog / Digital Communication
- Ingress Protection: IP66 / IP67 (Marine Grade)
- Operating Temperature: 0°C to +50°C
- Application: Monitoring Residual Chlorine/TRO in Electro-Cleen™ Ballast Water Management Systems (BWMS)
The Techcross TCL4ECS Online Residual Chlorine Monitor Kit 20040T is a specialized marine-grade analytical tool designed for the real-time detection of Total Residual Oxidants in treated ballast water. As a critical component of the Techcross BWMS, it ensures that neutralizing agents are applied correctly to meet international environmental discharge standards. The unit features high sensitivity and chemical resistance, providing reliable feedback to the main control system to prevent both under-treatment and excessive chemical discharge into the marine ecosystem.
Key Differences from Similar Models
The TCL4ECS 20040T model is specifically optimized for online continuous sampling, distinguishing it from the handheld or portable chlorine testers used for spot-checks. Unlike the older TCL3 series, the TCL4ECS utilizes an improved electrochemical sensor assembly that offers faster response times and reduced calibration drift in high-salinity environments. Additionally, the 20040T kit includes a specific mounting bracket and cable assembly that is not found in the base TCL4 units, making it a “plug-and-play” replacement specifically for the 20040T configuration in maritime engine room installations.
Operational Tips
- Reagent Freshness: For units utilizing chemical reagents, ensure they are stored in a cool, dark place; expired reagents will cause the monitor to report inaccurately low TRO levels, potentially leading to regulatory non-compliance.
- Sensor Cleaning: The measurement electrode should be inspected monthly. In marine environments, bio-fouling or calcium deposits can form on the sensor tip; clean only with the manufacturer-approved solution to avoid damaging the delicate membrane.
- Air Bubble Elimination: Ensure the sampling line is free of air bubbles. The presence of air in the measurement cell can cause erratic 4-20mA output signals and “noisy” data logs.
- Zero-Point Calibration: Perform a zero-point calibration using deionized water or dechlorinated seawater during every scheduled maintenance interval to compensate for electronic offset and sensor aging.
