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Hexavalent Chromium Analyzer Cr(VI) Online Water Quality Analyzer with Diphenylcarbazide Spectrophotometric Detection RS-232 4-20mA RS-485 Output 30min Measurement Period

Hexavalent Chromium Analyzer Cr(VI) Online Water Quality Analyzer with Diphenylcarbazide Spectrophotometric Detection RS-232 4-20mA RS-485 Output 30min Measurement Period

Brand Name: JUGE
Model Number: AG-Cr6+07
MOQ: 1 Unit
Price: USD2000-7000
Packaging Details: Neutral carton
Payment Terms: Online order,T/T
Detail Information
Place of Origin:
Nanjing, China
Certification:
IOS9001, CE
Type:
Hexavalent Chromium
Principle:
Diphenylcarbazide Spectrophotometric Detection
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:

Diphenylcarbazide Spectrophotometric Detection Hexavalent Chromium Analyzer

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RS-232 4-20mA RS-485 Output Cr(VI) Online Water Quality Analyzer

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30min Measurement Period Hexavalent Chromium Analyzer

Product Description
Online Heavy Metal Monitor in Water — Hexavalent Chromium Analyzer

The AG-Cr6+07 is an automatic online water quality analyzer designed for continuous monitoring of hexavalent chromium [Cr(VI)] in industrial wastewater. It delivers reliable, low-maintenance measurement with minimal reagent consumption and a high degree of cost-effectiveness.

Application

This method is applicable to wastewater with hexavalent chromium concentrations within the range of 0–20 mg/L.

Technical Parameters
Measurement Method Diphenylcarbazide spectrophotometric detection
Measurement Range 0–5 mg/L; OEM 0–20 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

After acid digestion, the water sample is mixed with a conditioning agent. Under acidic conditions in the presence of a chromogenic agent (typically 1,5-diphenylcarbazide), hexavalent chromium [Cr(VI)] reacts to form a violet-red chelate complex (λmax = 540 nm). The spectrophotometric analyzer quantifies Cr(VI) concentration by measuring absorbance changes proportional to the Beer-Lambert law. The chromogenic complex concentration directly correlates with the original Cr(VI) content in the sample.