Online Total Cadmium Analyzer
Model: ADG691
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 | ADG690 | ADG691 | ADG692 | ADG693 |
| Detection Principle | Arsenomolybdenum Blue Spectrophotometry (Type II) Oxidation – Non-Dispersive Infrared Detection (HTCO-NDIR) | Cadion Spectrophotometry | DPD Spectrophotometry | 4-Aminoantipyrine Extraction – Spectrophotometry |
| Measuring Range | 0-0.2/1/10 mg/L；(Extendable) | 0-20 mg/L | 0-0.2/1/5/20mg/L | |
| Indication Error | ≤5% | ±10% | — | When ≤0.02 mg/L, ≤0.001 mg/L.At0.02 mg/L, ≤ 5% ≤ ±0.001 mg/L |
| Lower Limit of Quantification (LLOQ) | ≤0.03mg/L | — | ≤0.03 mg/L | 0.002mg/L |
| Repeatability | — | ≤5% | — | — |
| Zero Drift | ±1% | ≤5% | ≤3% | 0.001mg/L |
| Span Drift | ±5% | ±5% | ±5% | |
| Voltage Stability | ±1% | — | ±5% | — |
| Ambient Temperature Stability | ±3% | — | ||
| Ionic Interference | ±5% | ±10% | ||
| Carry-over | ±5% | — | ||
| Minimum Maintenance Interval | ≥720h/cycle | — | ||
| Measurement Time | ≤55min | Minimum Measurement Cycle: 40 min/cycle | ≤45 min | ≤57min |
| Consistency | ≤1% | — | ||
| 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) | |||
| Weight | Net Weight<18Kg;Shipping Weight<20Kg | |||
| Environmental Conditions | 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 | |||
| Key Features | Certified by China National Environmental Monitoring Centre for suitability; ensures high accuracy and data reliability. Low reagent consumption and waste generation, reducing operational costs. Optimized reagent formulation masks interfering factors for more accurate results. Supports remote diagnostics and maintenance; fault reporting via WeChat scan for precise, rapid after-sales service. Compliant with dynamic controltechnical requirements. Compact design for easytransportation and installation. | Certified by China National Environmental Monitoring Centre for suitability; ensures monitoring data accuracy and validity. Low reagent consumption and waste generation, reducing operational costs. Optimized reagent formulation masks interfering factors for more accurate results. Supports remote diagnostics and maintenance; fault reporting via WeChat scan for precise, rapid after-sales service. Compliant with dynamic controltechnical requirements. Compact design for easy transportation and installation. | Dual-parameter monitoring: smart one- touch switching between Total Chlorine and Residual Chlorine. Developed based on standard DPD colorimetric method, eliminating frequent calibration and pH interference issues common with sensor probes. Unaffected by temperature, turbidity, or flow rate variations, ensuring high measurement accuracy. Extended reagent shelf life of 1 month (versus typical 2 weeks), reducing maintenance workload and reagent costs. | High accuracy: Complete pretreatment (distillation + extraction) ensures measurement sensitivity and precision. Low limit of quantification (LLOQ), suitable for diverse application scenarios. Safe operation: Unique, routine low-toxicity extraction and enrichment technology guarantees safety. Strong anti-interferencecapability: Distillation pretreatment minimizes turbidity and color interference. Excellent HMI: 10.4-inch color industrial touchscreen. Low operational costs: Minimal reagent use and waste generation. Supports remote maintenance: Fault reporting via WeChat scan for targeted after-sales service. Compact design for easy transportation |
| Typical Applications | Surface water; effluent from industries such as glass, wood, tanning, textile, chemical, pottery, pigment, and fertilizer. | Industrial wastewater from metal smelting, metal manufacturing,electroplating, chemical, and electronics industries. | Mainly used for total (residual) chlorine monitoring in drinking water, industrial wastewater, medical wastewater, and industrial circulating cooling water. | Monitoring stations for surface water bodies such as rivers, lakes, and reservoirs; enterprise pollution source discharge outlets. |
| Certifications | Software Copyright Registration | |||
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