SAIL HERO SERES 2000 Cd Total Chromium Online Analyzer
| Brand | SAIL HERO |
|---|---|
| Origin | Hebei, China |
| Manufacturer Type | Manufacturer |
| Origin Category | Domestic |
| Model | SERES 2000 Cd |
| Instrument Type | Online Analyzer |
| Detection Principle | Spectrophotometry (Diphenylcarbazide Method) |
| Target Analyte | Total Chromium (Cr) |
| Analysis Time | ≤30 min |
| Accuracy/Precision | ±10% |
| Resolution | 0.005 mg/L |
| Wavelength | 540 nm |
Overview
The SAIL HERO SERES 2000 Cd Total Chromium Online Analyzer is an industrial-grade, fully automated monitoring system engineered for continuous, unattended quantification of total chromium in aqueous matrices. It implements a validated high-temperature oxidation–diphenylcarbazide spectrophotometric method compliant with standard environmental testing protocols—including EPA Method 7196A and ISO 11088:2015 for chromium speciation and total metal determination. The instrument first subjects the sample to acid digestion under elevated temperature and pressure, converting all chromium species—including Cr(III) and organically bound forms—into hexavalent chromium (Cr(VI)). Subsequent reaction with diphenylcarbazide yields a stable, soluble purple-colored complex (Cr(III)-diphenylcarbazone derivative) with maximal absorbance at 540 nm. Absorbance measurement is performed using a high-stability optical path and thermally stabilized photometric cell, enabling trace-level detection in complex wastewater streams with minimal interferences.
Key Features
- Integrated high-pressure, high-temperature digestion module operating up to 120 °C and 0.5 MPa, ensuring complete oxidation of refractory Cr(III) species and organic complexes
- Imported multi-position selection valve with ceramic rotor and PTFE sealing, rated for >500,000 cycles and resistant to aggressive acidic reagents
- Non-contact peristaltic sampling system utilizing modified PTFE tubing (rated for >12 months continuous operation in 10% H2SO4 and 1% KMnO4)
- Infrared photoelectric reagent metering system with ±0.5% volumetric repeatability across 0.1–5.0 mL range
- High-precision dual-beam spectrophotometer featuring thermoelectrically cooled CCD detector and fixed 10-mm quartz flow cell
- Self-diagnostic firmware with real-time status logging, automatic leak detection, and scheduled calibration verification
- Modular architecture supporting hot-swap replacement of digestion, optical, and fluidic modules without system shutdown
Sample Compatibility & Compliance
The SERES 2000 Cd is validated for direct analysis of raw and treated industrial effluents (e.g., electroplating, tanning, pigment manufacturing), municipal wastewater influent/effluent, and surface water subject to anthropogenic chromium loading. It accommodates suspended solids up to 100 mg/L and chloride concentrations ≤5,000 mg/L without matrix interference correction. The analyzer meets EN 14181 (QAL1/QAL2) requirements for automated water quality monitoring systems and supports full audit trails aligned with ISO/IEC 17025:2017 and EPA 40 CFR Part 136 validation criteria. All calibration and maintenance events are timestamped and stored locally with write-protection, satisfying GLP data integrity expectations.
Software & Data Management
Embedded Linux-based control software provides local HMI via 7-inch capacitive touchscreen and remote access via secure HTTPS or Modbus TCP/IP. Data output includes raw absorbance values, calculated Cr concentration (mg/L), QC flag indicators (e.g., “digestion timeout”, “reagent depletion”), and diagnostic logs. Integrated SD card storage retains ≥12 months of 15-minute interval data with SHA-256 hash integrity verification. Optional cloud synchronization enables centralized fleet monitoring and automated report generation compliant with EU Water Framework Directive (WFD) reporting templates and China’s HJ 353–2019 technical specifications for online water quality monitoring equipment.
Applications
- Real-time compliance monitoring at discharge points of chrome-plating facilities and stainless steel manufacturing plants
- Early-warning detection of chromium breakthrough in groundwater remediation systems
- Process control feedback for chemical reduction units treating Cr(VI)-laden streams
- Long-term trend analysis in municipal wastewater treatment plant influent channels
- Supporting regulatory reporting under China’s GB 8978–1996 and US Clean Water Act NPDES permit requirements
FAQ
What sample pretreatment is required prior to analysis?
No manual filtration or dilution is required. The system handles raw wastewater with ≤100 mg/L TSS; optional inline 40-µm mesh filter is available for high-solids applications.
Does the analyzer differentiate between Cr(III) and Cr(VI)?
No—it measures total chromium after quantitative oxidation to Cr(VI). Speciation requires offline HPLC-ICP-MS or separate Cr(VI)-specific analyzers.
How often does the system require calibration verification?
Factory-recommended schedule is daily zero/span checks with certified reference standards; QAL2 verification every 3 months per EN 14181.
Can the SERES 2000 Cd be integrated into existing SCADA or DCS platforms?
Yes—via Modbus RTU/TCP, OPC UA (optional), or 4–20 mA analog output with HART protocol support.
What is the expected service life of critical consumables?
PTFE peristaltic tubing: ≥12 months; digestion reactor quartz liner: ≥36 months; diphenylcarbazide reagent cartridge: 30 days at 1-sample/hour frequency.
