AVVOR 9000 Residual Chlorine and Chlorine Dioxide Analyzer
| Origin | Canada |
|---|---|
| Manufacturer Type | Authorized Distributor |
| Origin Category | Imported |
| Model | AVVOR 9000 |
| Price | Upon Request |
Overview
The AVVOR 9000 Residual Chlorine and Chlorine Dioxide Analyzer is a fully automated, online photometric analyzer engineered for continuous, real-time monitoring of free chlorine, total chlorine, and chlorine dioxide concentrations in potable water, wastewater effluent, cooling towers, and industrial process streams. It employs the U.S. Environmental Protection Agency (EPA)-approved DPD (N,N-diethyl-p-phenylenediamine) colorimetric method—a standardized, oxidation-reduction-based assay where chlorine species oxidize DPD to form a stable magenta-colored compound proportional to concentration. Absorbance is measured at 515 nm using a high-stability LED light source and precision optical path, ensuring traceable accuracy under variable water matrix conditions. Designed for unattended operation up to 30 days, the system integrates reagent delivery, sample conditioning, reaction timing, and photometric detection within a single compact NEMA 4X/IP66-rated enclosure—eliminating manual sampling while maintaining compliance with drinking water safety benchmarks.
Key Features
- Continuous, on-line measurement of free chlorine, total chlorine, and chlorine dioxide (selectable via configuration)
- EPA-compliant DPD colorimetric methodology validated per Method 334.0 and ASTM D1253
- Programmable analysis cycle: 110 seconds to 10 minutes, configurable to match process dynamics and regulatory reporting intervals
- High-resolution detection with 0.01 mg/L Cl₂ resolution across full 0–10 mg/L range
- Dual user-defined concentration alarms with relay outputs for pump control, chemical dosing initiation, or SCADA integration
- Low reagent consumption design—optimized for >30-day unattended operation without recalibration or maintenance intervention
- Robust ABS housing rated to NEMA 4X and IP66 standards for outdoor or wet-location deployment
- Auto-ranging power supply (100–240 VAC, 47–63 Hz) with internal surge suppression
Sample Compatibility & Compliance
The AVVOR 9000 accommodates a wide range of aqueous matrices including filtered municipal drinking water, chlorinated secondary effluent, recirculating cooling water, and low-turbidity industrial process streams (turbidity < 5 NTU recommended). It operates reliably within an inlet pressure range of 5–150 psi and ambient temperature range of 5–40 °C. All wetted components are chemically resistant to chlorine-based disinfectants and compatible with standard PVC, CPVC, or stainless-steel sample lines. The analyzer meets CE, UL, CSA, and ETL/ETLc safety certifications. Its measurement protocol aligns with EPA regulatory requirements for public water systems (40 CFR Part 141), supports GLP-compliant data integrity, and provides audit-ready output logs for regulatory review.
Software & Data Management
Data output is provided via isolated 4–20 mA analog signal (HART-compatible) and RS-485 serial interface with Modbus RTU protocol—enabling seamless integration into PLCs, DCS, or SCADA platforms. Internal non-volatile memory stores up to 30 days of timestamped measurement records (concentration, cycle time, alarm status, reagent level, and diagnostic flags). Configuration and calibration parameters are managed via a backlit LCD interface with intuitive menu navigation—no external PC required. Firmware updates are performed via USB port using signed binaries to ensure system integrity. Optional cloud connectivity kits support MQTT-based telemetry for remote fleet monitoring and predictive maintenance alerts.
Applications
- Municipal drinking water treatment plants—continuous verification of disinfection residual prior to distribution
- Wastewater reclamation facilities—compliance monitoring of chlorine residual before discharge or reuse
- Hospital and pharmaceutical facility water loops—validation of sanitization efficacy in purified water systems
- Food and beverage processing—chlorine control in CIP (clean-in-place) rinse cycles and process water
- Power plant cooling towers—corrosion mitigation through precise biocide residual management
- Swimming pool and aquatic center automation—real-time adjustment of chlorine feed based on bather load
FAQ
What regulatory methods does the AVVOR 9000 comply with?
It implements EPA Method 334.0 and ASTM D1253 for free and total chlorine, and EPA Method 300.1 for chlorine dioxide—ensuring regulatory acceptance in North America and EU markets.
Can the instrument measure both free chlorine and total chlorine in the same unit?
Yes—via programmable assay sequence selection; total chlorine measurement includes a potassium iodide pre-reduction step integrated into the fluidic path.
Is field calibration required, and how often?
Factory calibration is traceable to NIST-certified standards; field verification using certified DPD standards is recommended every 30 days or per local regulatory schedule.
Does the system support remote diagnostics and firmware updates?
Yes—via Modbus register access and optional USB-to-cloud gateway; all firmware updates include cryptographic signature validation.
What maintenance tasks are required during the 30-day unattended operation window?
None—reagent cartridges, waste reservoir, and optical windows are designed for full-cycle endurance; only post-cycle replacement of consumables is needed.
