Description
Alat uji kualitas air LS310 adalah instrumen khusus untuk menguji kualitas air minum. Alat ini menggunakan metode absorbansi UV untuk mengukur parameter kualitas air minum (COD, TOC, dan UV275). Alat ini mengukur konduktivitas antar elektroda untuk mendapatkan nilai TDS dan konduktivitas air minum. Alat ini dapat mengukur 6 indikator kualitas air secara bersamaan, dan menilai kualitas air secara menyeluruh. Alat uji kualitas air LS310 terutama digunakan untuk menguji air keran, air murni, air tanah, dan air minum lainnya.
Dangers of drinking poor water quality
Parameters
| Measurement Object | Tap water, purified water, bottled water, ground water, surface water (non-sewage) and other drinking water |
|---|---|
| Measurement parameters | COD: Chemical Oxygen Demand; TOC: Total Organic Carbon; UV275: Ultraviolet Absorption Value; TDS: Total Dissolved Solids; EC: Electrical conductivity; T: Temperature; |
| Measurement Range | COD: 0-100mg/L; TOC: 0-100mg/L; UV275: 0-1.0au/cm; TDS: 0-2000ppm; EC: 0-4000us/cm; T: 0-50℃ |
| Resolution | COD: 0.01mg/L; TOC: 0.01mg/L; UV275: 0.001au/cm; TDS: 1ppm; EC: 1us/cm; T: 0.1℃; |
| Accuracy (H is the standard value) |
COD: 0-5mg/L: ±0.5mg/L; 5-100mg/L: ±10%H; TOC: 0-5mg/L: ±0.5mg/L; 5-100mg/L: ±10%H; UV275: 0-0.1au/cm: ±0.01au/cm; 0.1-1.0au/cm: ±10%H; TDS: 0-100ppm: ±5ppm; 100-2000ppm: ±5%H; EC: 0-200us/cm: ±10us/cm; 200-4000us/cm: ±5%H; T: ±2℃ |
| Display | 240*135 1.14 inch TFT color screen |
| Power Supply | 2 AAA alkaline dry batteries |
| Size | 157 * 37 * 14mm |
| Weight | About68g |
| Working Temperature Range | 0~50℃ |
| Storage Temperature Range | -10~60℃，0~85%RH（no condensation） |
Feature
Intelligent scoring, indicating 4 different levels
The instrument through the LCD backlight color indicates fine quality, good quality, average quality and poor quality 4 levels, the measurement results are very intuitive.
Indicator Analysis
COD (mg / L) chemical oxygen demand
Measure the amount of reducing substances that need to be oxidized in the water sample, a comprehensive reflection of the degree of organic pollution of the water, the lower the value indicates that the water is polluted by organic pollutants, the lower the degree of pollution
TOC (mg/L) total organic carbon
Carbon is the common component of all organic matter, the main element of organic matter, the higher the TOC value of water, the higher the organic content of water, total carbon is an indicator to evaluate the organic pollution of water quality
UV275 (au/cm) ultraviolet absorption value
Absorbance of some organic matter in water at 275nm wavelength, reflecting the number of various types of macromolecular organic compounds in water
EC (us/cm) electrical conductivity
Theoretically H2O non-conductive liquid in the more charged substances the greater the conductivity of the liquid, commonly used in various industries to measure the concentration of the solution
TDS (ppm) total dissolved solids
The total amount of various ionic molecules and compounds dissolved in water, the higher the TDS value, the more dissolved substances contained in the water.
TEM (℃) temperature
Measure the temperature change of water
Indirectly reflect the residual chlorine content in water
Indirectly indicate the residual chlorine content of water through UV275 indicator, the higher the residual chlorine content, the larger the UV275 value
Application
Qualifications and Standards
LS310 water quality tester meets the following standards:
- GB5749-2022 Sanitary Standard for Drinking Water
- GBT5750-2023 Standard Test Methods for Drinking Water
- JJG 821-2005 Total organic carbon analyzer test procedure
- JJG 376-2007 Conductivity meter testing procedures
Email : alfin@testindo.com
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