Online Hexavalent Chromium (Cr(VI)) Water Quality Auto-Monito
Model: ADG668
The ULT200 ultrasonic level transmitter provides reliable non-contact level measurement for liquids, solids and slurries. With advanced echo processing technology, it delivers high accuracy even in challenging industrial environments.
- 24-Hour Response Fast turnaround time
| Model | ADG672 | ADG673 | ADG688 | ADG687 | ADG668 |
| Detection Principle | Zincon Spectrophotometry | Phenanthroline Spectrophotometry | 3,5-Br₂-PADAP Spectrophotometry | Porphyrin Spectrophotometry | Diphenylcarbazide Spectrophotometry |
| Measuring Range | 0-2， 10，20， 50mg/L (Extendable) | 0-5，25， 100mg/L (Extendable) | 0-1， 2 ，10mg/L(Extendable) | 0-0.2 ，0.5 ， 1 ，2mg/L (Extendable) | 0-1， 5 ，25mg/L |
| Indication Error | ±5% | ±3% | |||
| Detection Limit (DL) | — | ≤0.005 mg/L | — | ||
| Precision | ≤5% | ≤3% | ≤1% | ||
| Lower Limit of Quantification (LLOQ) | ≤0.03 mg/L | ≤0.05 mg/L | ≤0.05mg/L | ||
| Repeatability | ≤5% | ||||
| Zero Drift | ±5% | ±1% | ≤1% | ||
| Span Drift | ±5% | ≤3% | |||
| Voltage Stability | ±5% | ±1% | |||
| Ambient Temperature Stability | ±10% | ±3% | ±5% | ±10% | |
| Ionic Interference | ±20% | ±15 % | ±5 % | ±15% | ±3 % |
| Carry-over | ±0.1 mg/L(verified with 20% and 80% of standard solution concentration) | ±5% | ±0.004mg/L | ±5% | |
| Standard Addition Test | ≤0.50 mg/L，80-120% | — | |||
| >0.50 mg/L，90%-110% | — | ||||
| Real Sample Comparison | ≤0.20 mg/L， ≤±0.04mg | TCr<0. 1 mg/L ， ±0.01 mg/L | TCu ≤ 0.50 mg/L， ≤0. 1mg/L | ≤ 0.05 mg/L for sample concentrations ≤ 0.50 mg/L | |
| >0.20 mg/L， ≤15% | TCr ≥ 0. 1mg/L ， ±10% | TCu > 0.50 mg/L， ≤15% | ≤ 10% of reference value for sample concentrations ≥ 0.50 mg/L | ||
| Measurement Time | ≤50 min | ≤60 min | ≤40 min | ≤45 min | |
| Minimum Maintenance Interval | ≥720 h/cycle | ||||
| Data Availability Rate | ≥90% | ≥95% | ≥90% | ≥95% | |
| Consistency Deviation | ≤10% | ≤1% | ≤1% | ||
| Main Unit Dimensions (H × W × D) | 3 6 0 m m * 2 5 0 m m * 5 0 0 m m ( W * D * H ) + (Including Pre-treatment Unit) | ||||
| Instrument Weight | Net Weight<18Kg;Shipping Weight<20Kg | ||||
| Environmental Requirements | Temperature：5 – 40℃:Humidity：≤90% | ||||
| Power Supply | AC（220±22）V ，（50±1) Hz | ||||
| Digital Communication | Serial: 1 × RS232, 1 × RS485 (MODBUS protocol supported) Network: 1 × RJ45 Ethernet | ||||
| Outputs | Analog Output: 1 × Isolated 4-20 mA Digital Outputs: 1 ×Switch/Dry Contact, 1 × DC 24V Sourcing Output | ||||
| Product Features | Complies with US EPA Method 7063, 7472, DIN 38406, ISO 6636-1,and ISO 8391-1 standards. Patented detection cell technology significantly improves sensitivity and enables simultaneous multi-metal detection in a single instrument. Patented sampling and advanced fluidic technology eliminate cross-contamination and prevent tubing clogs. Innovative modular design allows for simultaneous analysis of multiple parameters, with flexible parameter combinations per user requirements. Measurement results are unaffected by sample color or turbidity. Automatic calibration ensures consistent and reliable test results. Low reagent consumption reduces operating costs. | Certified by China National Environmental Monitoring Centre for instrument suitability, ensuring accurate and valid monitoring data. Low reagent and waste generation, reducing operational costs. Optimized reagent formulation masks interfering factors in water for more accurate results. Supports remote diagnostics and maintenance; fault reporting via WeChat QR code scan for precise and rapid after-sales service. Compliant with dynamic control technical requirements. Compact design for easy transportation and installation | |||
| Typical Applications | Surface water, groundwater, drinking water | Metal processing, metal smelting, battery industry, petrochemical industry | Wastewater discharge from metal processing, electroplating, tanning and other industries | ||
| Product Certifications | Software Copyright Registration | ||||
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