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Product model: TN-8000
System Overview
Potassium persulfate oxidants and water samples under high temperature and pressure conditions, various nitrogen compounds in water samples are oxidized and digested by potassium persulfate to convert into nitrate. Then adjust the acidity and alkalinity of the solution, the depth of the color of the solution under ultraviolet irradiation is proportional to the total nitrogen content in the water sample, and the total nitrogen content in the sample is obtained by measuring the absorbance value of the reaction product.
System Features
· The water sample pretreatment device adopts maintenance-free design, which can ensure that the maintenance cycle of the pretreatment device exceeds half a year.
· The chemical digestion time can be adjusted, and the determination process and results meet the relevant standards.
· The analytical flow path design and reagent formulation of all imported devices ensure the measurement reproducibility, which can reach 5% at present.
· Automatic operation, no personnel on duty, can achieve automatic zero, automatic calibration, automatic measurement, automatic cleaning, automatic maintenance, self-protection, automatic recovery and other intelligent functions.
· Online monitoring methods are diversified, which can realize manual measurement at any time, automatic timing measurement, automatic periodic measurement and other measurement methods.
· Automatic leakage alarm function, when there is a reagent leak, the instrument automatically alarms, prompting the user to maintain.
Technical Parameters
Test method: | ultraviolet colorimetry; |
Test range: | 0 ~ 2/10/50mg /L; |
Accuracy: | > 100mg/L: < 10% reading; < 100mg/L: < ±1mg/L; |
Repeatability: | > 100mg/L: < 5% reading; < 100mg/L: < ±1mg/L; |
Response time (90%) : | can be adjusted according to the water sample, at least 30min; |
Test mode: | timing, equal interval, manual; |
Reagent consumption: | 1mL at a time; |
Maintenance mode: | self-maintenance, user maintenance interval >5 months; |
Self-monitoring: | self-monitoring of leaks; Instrument status self-diagnosis; |
Analog output: | 4– 20mA analog output; |
Relay control: | 2 24V 1A relay high and low point control; |
Data transmission mode: | RS232, RS485, GPRS; |
Display: | 8.0-inch LCD touch screen, resolution 800×600; |
Data storage: | one year of valid data; |
Reagent change: | change once a month; |
Operating temperature: | +0 ~ 50°C; |
Power supply: | 220 ±10% VAC; 50-60Hz; |
Power consumption: | about 80W; |
Size: | 490×1340×375mm; |
Weight: | about 45Kg. |