Online Monitor for Cadmium Content in Wastewater

• Customization: Available
• After-sales Service: 1 Year
• Warranty: 1 Year
• Model NO.: AG-TCd07
• Display: Digital
• Appliance: Water Quality Monitor
• Portable: Non Portable
• Certification: CE
• Type: Cadmium
• Range: 0-5mg/L OEM
• Display Error: 5%
• Repeatability: Less Than 5%
• Measurement Period: 30min
• Output: RS-232, 4-20mA, RS-485
• Transport Package: Carton
• Specification: 1500*500*450mm
• Trademark: JUGE or OEM
• Origin: Nanjing, China

Product Description

Product Description

Online Monitor for Cadmium Content in Wastewater

>>Application

This method is applicable to wastewater with cadmium concentrations within the range of 0-5 mg/L.

>>Technical parameters

1. Measurement Method: Dithizone spectrophotometric method
2. Measurement Range: 0-2 mg/L, OEM 0-5mg/L
3. Accuracy: ≤±10%
4. Repeatability: ≤±5%
5. Measurement Cycle: Minimum cycle is 30 minutes; color development time can be adjusted flexibly between 5-30 min based on environmental conditions.
6. Sampling Cycle: Adjustable time interval (10-9999 min) or on-the-hour measurement mode.
7. Calibration Cycle: Adjustable at any interval from 1-99 days.
8. Maintenance Cycle: ≥168 hours, with each maintenance lasting ~1 hour.
9. Reagent Consumption: <0.50 CNY per sample.
10. Outputs: RS-232, 4mA-20mA, RS-485.
11. Environmental Requirements: Temperature-controlled indoor environment (recommended: 5-40°C); humidity 45%-85%.
12. Power Supply: AC 220±10% V, 50±1% Hz, 5A.
13. Dimensions: Height 1500 × Width 500 × Depth 450 mm.
14. Additional Features:

• Data retention during abnormal alarms or power outages.
• Touchscreen display and command input.
• Automatic discharge of residual reactants and resumption of operation after power restoration or system reset.

>>Feature

Unique Design: This product features a distinctive design that ensures lower failure rates, reduced maintenance requirements, minimal reagent consumption, and higher cost-effectiveness compared to similar products.

1. Selector Valve Assembly:

   • Enables flexible reagent sampling timing and diverse channel configurations.
   • Minimizes dead volume for easy maintenance and extended service life.

2. Micro-Dosing Unit:

   • Utilizes a visual photoelectric system for precise reagent measurement, eliminating quantitative errors caused by peristaltic pump tube wear.
   • Achieves accurate micro-dosing with 0.7 mL per dose, significantly reducing reagent usage.

3. Sample Introduction Unit:

   • Employs a peristaltic pump with negative pressure suction, creating an air buffer zone between reagents and the pump tube to prevent corrosion.
   • Simplifies and enhances flexibility in reagent mixing.

4. Sealed Digestion Unit:

   • Operates under high-temperature and high-pressure conditions to accelerate reactions.
   • Eliminates corrosion risks from volatile gases in open systems.

5. Reagent Tubing:

   • Uses imported modified PTFE (polytetrafluoroethylene) transparent tubing with an inner diameter >1.5 mm to minimize clogging by particulate matter in water samples.

>>Analytical Principle

The aqueous sample undergoes hot-block digestion (150°C ±5°C) with concentrated HNO₃ (1:1 v/v) followed by pH adjustment using ammonium citrate buffer. In alkaline medium (pH 10.0 ±0.1 maintained by NH₄OH/NH₄Cl buffer) with dithizone as the chromogenic agent, cadmium ions form a crimson-red Cd-dithizonate complex exhibiting maximum absorbance at 518 nm (ε = 8.5×10⁴ L·mol^-1·cm^-1). A microprocessor-controlled portable photometer (e.g., Hach DR1900) quantifies cadmium concentration through dual-wavelength measurement (518 nm sample vs 650 nm reference), with calibration curves validated per EPA Method 200.7 requirements (linear range: 5-200 μg/L, LOD 1.5 μg/L).

 

Company Profile

>>OEM Solutions & Service Advantages
We provide OEM customization services. Contact us to discuss tailored product solutions. 

1) 12-hour response guarantee for all inquiries;
2) Premium quality with industry-competitive pricing;
3) Dedicated post-purchase support system;
4) OEM/ODM compatibility;
5) Certified safety equipment specialists with expert engineering team.
 

>>FAQ
Q: Can I request a single sample unit for quality assessment?
A: Absolutely. We strongly advise sample evaluation before mass ordering.
 

Q: Could I obtain your product catalog and MOQ pricing details?
A: Our complete product portfolio is available digitally. Please browse our website for model specifications or email specific requests.
 

Q: What pricing advantages apply for large quantity orders?
A: Submit your complete requirements (product model, quantities, quality standards, branding specifications, payment terms, and logistics details) for optimized bulk pricing.
 

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