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Product Model: T8000-Se
Product Description
The T8000-Se online analyzer for selenium in water uses photoelectric colorimetry for measurement. It is an automatic online monitoring device controlled by an embedded system and can be applied to a variety of water quality such as river water, surface water and industrial wastewater.
Principle
After the sample is filtered, it is pumped into the reactor. First, the masking agent is injected to eliminate the interfering substances, and then the pH value of the solution is adjusted to make the solution have a suitable pH. Then the characteristic color developer is added to react with selenium in water for color development, and the absorbance of the reactants is measured. The concentration of selenium in the sample is calculated by the absorbance value and the correction factor stored in the monitor.
Technical Parameters
| Measurement principle: | photoelectric colorimetry; |
| Range: | 0 ~ 0.05\1.0\5.0mg/L; |
| Measurement type: | automatic online unattended measurement; |
| Measurement interval: | can be set arbitrarily; |
| Measurement time: | about 20 minutes; |
| Measurement accuracy: | 10%; |
| Minimum detection limit: | 0.005mg/L; |
| Reproducibility: | 5%; |
| Signal output: | standard 4-20mA analog output, maximum load 400 ohms or 0-5V, other RS485 or RS232 optional; |
| Signal input: | 1 channel analysis, 1 channel correction; |
| Sample and waste liquid transport: | no pressure; Sample temperature: 10-30℃; |
| Agent replacement: | 3~4 weeks according to the operating temperature changes; |
| Ambient temperature: | 5-40 ℃; |
| Protection class: | IP55; |
| Power supply: | 220VAC; |
| Weight: | 45kg (excluding chemicals); |
| Size: | 530×1340×390mm. |
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 national standard HJ569-2011 of China’s environmental protection industry.
· All imported devices and innovative analytical flow path design and reagent formulation ensure 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.
· Operation and maintenance is extremely simple, no professional training is required.
· The electrical part and the fluid part are isolated, and the embedded control system is used for fully automatic operation.
