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Dithizone Spectrophotometric Method Cadmium Water Quality Analyzer 0-5mg/L Range Online Heavy Metal Monitor with RS-232 4-20mA RS-485 Output

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Dithizone Spectrophotometric Method Cadmium Water Quality Analyzer 0-5mg/L Range Online Heavy Metal Monitor with RS-232 4-20mA RS-485 Output

Brand Name:	JUGE
Model Number:	AG-TCd07
MOQ:	1 Unit
Price:	USD2000-7000
Packaging Details:	Neutral carton
Payment Terms:	Online order,T/T

Detail Information

Product Description

Detail Information

Place of Origin:

Nanjing, China

Certification:

IOS9001, CE

Type:

Cadmium

Principle:

Dithizone Spectrophotometric Method

Range:

0-5mg/L OEM

Accuracy:

≤±10%

Repeatability:

≤± 5%

Measurement Period:

30min

Output:

RS-232, 4-20mA, RS-485

Specification:

1500*500*450mm

Supply Ability:

100 Unit/Week

Highlight:

Dithizone Spectrophotometric Method Cadmium Analyzer

0-5mg/L Range Cadmium Water Quality Analyzer

RS-232 Output Online Heavy Metal Monitor

Product Description

Application

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

Technical Parameters

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

Key Features

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).

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products details

Dithizone Spectrophotometric Method Cadmium Water Quality Analyzer 0-5mg/L Range Online Heavy Metal Monitor with RS-232 4-20mA RS-485 Output

Online Water Quality Monitor

Multi Parameter Water Quality Monitor

PH ORP Meter

Conductivity Meter

Dissolved Oxygen Meter

Ion-selective Meter

Residual Chlorine Meter

Turbidity Analyzer

TSS Analyzer

COD Analyzer

Optical Water Quality Sensor

Ultrasonic Meter

Water Quality Monitoring Accessories

Online Water Quality Monitor

Drinking Water Monitoring

Industrial Wastewater Monitoring

Aquaculture water Quality Monitoring

Boiler Water Monitoring

Multi Parameter Water Quality Monitor

PH ORP Meter

PH ORP Transmitter And Sensor

Portable PH ORP Meter

Desktop PH ORP Meter

Conductivity Meter

Conductivity Transmitter And Sensor

Portable Conductivity Meter

Desktop Conductivity Meter

Dissolved Oxygen Meter

Dissolved Oxygen Transmitter And Sensor

Portable Dissolved Oxygen Meter

Desktop Dissolved Oxygen Meter