SY-1072 Total Arsenic Water Quality Online Detector

1. Working principle: The measurement method of SY-1072 total arsenic online water quality analyzer adopts ISO6595, GB-7485-87 "Water Quality - Determination of Total Arsenic - Silver Diethyldithiocarbamate spectrophotometric method". Zinc reacts with acid to produce new ecological hydrogen. In the presence of potassium iodide and stannous chloride, pentavalent arsenic is reduced to trivalent arsenic, which is then reduced to arsine (arsine) by primary ecological hydrogen. Arsine is absorbed in chloroform solution of silver triethanolamine diethyldithiocarbamate to produce red colloidal silver. The absorbance of the absorption solution is measured at a wavelength of 530nm. The instrument directly displays the total arsenic value in the sample through colorimetric conversion.

2. The SY-1072 total arsenic online water quality analyzer has the following basic functions:

- Can set and verify display time, including year, month, day, hour, and minute;

- It has an alarm function and displays the fault content in case of system abnormalities such as equipment power failure, instrument leakage, and inability to import samples into the reactor. Simultaneously stop running until the system is restarted;

- After each measurement, automatically clean the processing device, instrument pipelines, valves and other components;

- Automatic protection for power and water outages, as well as automatic recovery for incoming and outgoing power;

- Regular cleaning and sampling functions;

Touchscreen viewing is more intuitive and easier to operate;

Measurement method F: Diethyldithiocarbamate silver spectrophotometric method

Test range: 0-3 mg/L (can be expanded according to requirements)

Detection limit: 0.001 mg/L

Resolution: 0.001mg/L

Accuracy: The indication error shall not exceed 10%

Repeatability: Relative standard deviation not exceeding 5%

Zero drift: ≤± 5%

Range drift: ≤± 10%

Dissolving temperature: 120 degrees Celsius, adjustable

Reagent consumption: precise measurement, minimal reagent usage, saving costs for users

User maintenance: Maintenance interval>1 month, approximately 1 hour per month; Easy and convenient maintenance

Environmental impact: Water quality will not be damaged under extreme conditions such as high suspended solids, impurities, and floating debris

Communication interface: RS232 digital interface, 4-20mA analog signal output

Dimensions: Height 1400 x Width 560 x Depth 450mm

Weight: 65 kilograms

Power supply: AC (220 ± 10%) V, (50 ± 10%) Hz, 5A

Environmental temperature: 5-40 degrees Celsius

Environmental humidity: ≤ 90% (non condensing)

Atmospheric pressure: 86 kPa to 106 kPa

Sampling outlet: distance L ≤ 15m, drop height H ≤ 6m