Eranntex MIC-500-CL2 Fixed Chlorine (Cl₂) Gas Detector

Overview

The Eranntex MIC-500-CL2 is a fixed-mount, intrinsically robust chlorine (Cl₂) gas detection system engineered for continuous ambient air monitoring in industrial and hazardous environments. It employs electrochemical sensing technology—optimized for high selectivity and stability in low-concentration Cl₂ measurement—making it suitable for real-time leak detection, process safety interlocking, and regulatory compliance in chlor-alkali plants, water treatment facilities, chemical synthesis units, and pharmaceutical manufacturing cleanrooms. The sensor core is sourced from globally recognized suppliers including Honeywell, Figaro, City Technology, Alphasense, Dynament, and Membrapor, ensuring traceable performance against ISO 17025–accredited calibration protocols. Designed to operate continuously under demanding conditions—including wide temperature extremes (−40 °C to +70 °C) and humidity up to 95% RH (non-condensing)—the MIC-500-CL2 complies with IEC 60079-0 and IEC 60079-1 for explosive atmospheres, and meets the structural and functional requirements of GB 15322.1–2019 and GB 3836 series standards for gas detection equipment in China.

Key Features

• Intrinsically safe, flameproof enclosure rated Exd IIC T6 Gb (Certificate No. CNEx17.3959), certified for Zone 1/21 hazardous locations
• Triple-layer electromagnetic immunity: EMI/EMC compliant per GB/T 17626 series; surge-resistant up to 4 kV (line-to-earth), anti-static (±15 kV air discharge), reverse-polarity protected
• Dual-output architecture: standard 4–20 mA analog output (3-wire or 4-wire) plus RS485 Modbus RTU digital interface for seamless integration into DCS, SCADA, or PLC systems
• Configurable alarm logic: two programmable relay outputs (dry contact), three-level threshold settings (pre-alarm, alarm, fault), with optional integrated visual-acoustic alarm module
• Remote operational capability via infrared remote control (15 m range, no enclosure opening required), supporting zero-point tracking, multi-point calibration, and span adjustment without physical access
• IP65-rated aluminum alloy housing with corrosion-resistant surface treatment, dimensions 238 × 210 × 90 mm (L × H × W), weight 1.8 kg

Sample Compatibility & Compliance

The MIC-500-CL2 is validated for chlorine gas detection in ambient air, stack emissions, and indoor process environments where Cl₂ concentrations range from sub-ppm to 100 ppm (custom ranges available upon request). It supports diffusion-based sampling as standard; optional pump-aspirated, flow-through, or pipe-mounted configurations enable adaptation to ducted ventilation systems or pressurized process lines (operating pressure tolerance: ±30% of atmospheric pressure). All configurations maintain metrological traceability to national standards per CPA (China Metrology Accreditation) certification. The device conforms to GLP-aligned data integrity principles when connected to validated host software, and its firmware supports audit-trail-enabled calibration logs required under FDA 21 CFR Part 11 for regulated pharmaceutical and biotech applications.

Software & Data Management

The MIC-500-CL2 interfaces with Eranntex’s free PC-based upper-layer software (MIC-Manager), enabling real-time concentration visualization, historical trend analysis, event logging, and report generation (PDF/CSV export). Data synchronization supports local storage on Windows-based workstations or cloud deployment via TCP/IP gateway modules. Optional wireless transmission modules—including GPRS, Wi-Fi, and 433 MHz RF—enable remote telemetry to centralized monitoring centers or mobile devices. For enterprise-scale deployments, the device integrates natively with MQTT brokers and OPC UA servers, facilitating interoperability with Industry 4.0 platforms. All communication channels support encrypted payload transmission (AES-128) and configurable data polling intervals (1–300 seconds).

Applications

• Chlorine dosing stations and disinfection systems in municipal and industrial wastewater treatment plants
• Electrolytic cell rooms and chlorine compression units in chlor-alkali production facilities
• Chemical synthesis reactors handling Cl₂ as reagent or byproduct (e.g., PVC, pesticides, pharmaceutical intermediates)
• Hazardous material storage areas, cylinder filling stations, and railcar unloading zones
• Confined space entry monitoring for maintenance personnel in HVAC ducts or utility tunnels
• Environmental compliance monitoring at fence-line locations per EPA Method 301 or EN 14181 requirements

FAQ

What is the recommended calibration frequency for the MIC-500-CL2 in continuous operation?
For critical safety applications, quarterly bump testing and semi-annual full calibration are advised; annual sensor replacement is recommended based on electrochemical sensor lifespan under typical operating conditions.
Can the MIC-500-CL2 be deployed in high-humidity or condensing environments?
Standard units are rated for non-condensing humidity up to 95% RH; for condensing or high-dust scenarios, optional pre-treatment modules (e.g., heated sample line, particulate filter, Nafion dryer) must be specified at order stage.
Does the device support Modbus TCP or only Modbus RTU over RS485?
Native protocol is Modbus RTU over RS485; Modbus TCP functionality requires an external protocol converter (e.g., Eranntex NET-485 gateway) configured as a transparent bridge.
Is firmware upgrade possible remotely via network connection?
Yes—when equipped with Ethernet or Wi-Fi module, firmware updates can be performed over-the-air using signed binary packages verified via SHA-256 checksum and RSA-2048 signature validation.
What documentation is provided for regulatory submission in EU or US markets?
CE DoC (based on ATEX 2014/34/EU via notified body assessment), RoHS Declaration of Conformity, and full test reports (EMC, explosion protection, environmental stress) are supplied upon request for CE/UKCA or FDA registration dossiers.