Based on the characteristics of global water quality and monitoring standards, combined with our own technical advantages, we have adopted the concept of modular configuration to ingeniously combine the electrode method with the microcomputer photometric measurement principle. We have thus launched the latest ET9909 series of multi-parameter water quality rapid analyzers. These are not only suitable for various outdoor environmental water quality testing requirements but also for rapid water quality detection during emergencies as well as routine water parameter measurements in laboratories, allowing users to meet their water testing needs with minimal investment. The spectrophotometer has built-in programs for over 100 testing methods and electrode measurements, enabling it to measure more than 115 critical water parameters, widely applied in water quality monitoring in industries such as industry, municipal services, environmental protection, and education.
The device allows for quick measurement and detection of various water parameters, featuring user-friendly and convenient operation, large capacity storage functions, and data interfaces including RS232, USB, and IR data transmitters, facilitating data storage and management by transferring results to a computer for further analysis, printing, etc. It is suitable for comprehensive water quality analysis both in the field, at production sites, and in laboratories.
**Key Features:**
- A: Photometric determination using a six-band light source, with wavelengths ranging from 310 to 660nm, automatically selecting wavelength based on the measurement item.
- B: Microprocessor patented technology, humanized design, large screen display, flowchart graphic display, simple operation.
- C: Built-in standard curves for nearly 100 measurement parameter indicators and electrode methods, enabling conventional or rapid measurements of pH, conductivity, dissolved oxygen, turbidity, COD, ammonia nitrogen, fluoride, iron, copper, phosphate, sulfate, nitrate, absorbance, and more than 115 important parameters.
- D: Large capacity data storage function, storing up to 200, 400, or 1000 data sets conventionally.
- E: Use of pre-prepared reagents, simple and convenient, greatly saving your time, with reagents having stable and easy-to-store features; some reagent shelf lives can reach 5-10 years.
- F: Convenient connection to computers for real-time data transmission, printing, or data management.
- G: Economical and practical power supply modes, including built-in rechargeable batteries and universal power adapters, suitable for different measurement environments.
- H: Configured portable packaging, waterproof and shockproof design, economical consumables, suitable for field and laboratory analysis and testing.
**ET9909 Models:**
- **ET9909 (Standard Type):** Up to 113 measurement parameter indicators (see detailed ion measurement data in the manual).
- **ET9909 (Enhanced Type):** Up to 115 measurement parameter indicators (see detailed ion measurement data in the manual).
**Measurement Ranges:**
- Acidity/ORP Range: Acidity-pH: 0.00 to 14.00 pH; Oxidation Reduction-ORP: ±2000.0mV
- Dissolved Oxygen Range: Saturated Dissolved Oxygen: 0.0 to 500%; 0.00 to 50.0 mg/L DO, Resolution: 0.1%, 0.01 mg/L
- Conductivity Range: 0.000 to 200.000 mS/cm (actual EC value up to 400 mS/cm)
- Resistivity Range: 0 to 999999 Ω·cm, 0 to 1000.0 kΩ·cm, 0 to 1.0000 MΩ·cm
- TDS Range: 0 to 400000 mg/L (ppm), maximum value depends on the TDS factor
- Salinity Range: 0.00 to 70.00 PSU (PSU is the Practical Salinity Unit)
- Seawater Specific Gravity Range: 0.0 to 50.00 σt, σ0, σ15
- Atmospheric Pressure Range: 450 to 850 mmHg, 17.72 to 33.46 inHg, 600.0 to 1133.2 mbar, 8.702 to 16.436 psi, 0.5921 to 1.1184 atm, 60.00 to 113.32 kPa
- Turbidity Range: 0.00 to 1000 NTU with three automatic range conversions
- Temperature Range: -5.00 to 55.00°C, 23.00 to 131.00°F, 268.15 to 328.15K
- Automatic Temperature Compensation: -5.00 to 55.00°C (23.00 to 131.00°F)
**Electrode Types:** HI769828 combination pH/ORP/EC/TDS/DO electrode, specifications: 4 meters (also available in 10 meters, 20 meters...100 meters).
**Data Management:**
- Data Storage: Multi-parameter ion measurement indicators: 1000 groups (multiple data-related information storage and display), turbidity measurement indicators: 200 groups
- Automatic or Manual Storage: 60000 measurement data sets (13 measurement items)
- Data Interfaces: RS232 data interface, USB data interface, ET214050 IR external data transmitter for computer or printer data management
**Optical System:**
- Waterproof sample cell, temperature-compensated LED optical system, automatic wavelength conversion
- Wavelength Range: Six-band light source, wavelength range 430 to 660nm, high and low-temperature experimental box, automatic wavelength selection
- Photometric Range: -2600 mAbs to +2600 mAbs
- Calibration Mode: Automatic zero-point calibration, using SMD microprocessor technology, with factory calibration and user-defined dual calibration mode
- GLP Function: Built-in real-time clock, background light display, waterproof operation
**Power Saving:**
- Auto-off after 20 minutes of inactivity
**Standard Configuration:**
- ET9909 (Standard Type): Data-type multi-parameter water quality rapid analyzer capable of measuring COD, acidity, conductivity, dissolved oxygen, salinity, seawater specific gravity, temperature, ammonia nitrogen, fluoride, iron, copper, phosphate, sulfate, nitrate, and up to 113 other indicators, along with accessories package, dedicated carrying case, and bilingual manuals.
- ET9909 (Enhanced Type): Data-type multi-parameter water quality rapid analyzer capable of measuring COD, acidity, conductivity, dissolved oxygen, salinity, seawater specific gravity, turbidity, temperature, ammonia nitrogen, fluoride, iron, copper, phosphate, sulfate, nitrate, and up to 115 other indicators, along with accessories package, dedicated carrying case, and bilingual manuals.
**Note:** Standard configurations do not include ion project配套reagents. Users may select corresponding ion配套reagents based on actual measurement needs. For certain measurement projects like COD and phosphate, samples need to be pre-treated with digestion heating before measurement. Users need to purchase the ET99125 digester.
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We sincerely invite dealers for ammonia nitrogen HI93700 Microcomputer Ammonia Nitrogen Concentration Analyzer.