Inject the sample into the reaction pool by a syringe pump, add in the acidic reagent, and then heat the mixed sample to 95°C to dissolve the suspended iron; secondly, inject the buffer, adjust to a proper pH value for reduction, and reduce the ferric iron to divalent; finally, the chromogenic agent, iron ions and the chromogenic agent are added to generate a purple complex, and then the absorbance of the complex is measured at the specified wavelength with a colorimeter to calculate the total iron content.

Characteristics:

l Valve components selection. It can select the reagent sampling sequence, with flexible channels, variable functions, minimum dead volume, easy maintenance, long service life and other advantages.

l Printing function. It can be connected to a printer (optional order) to print the measured data in time.

l It adopts 7-inch touch screen, with simple operation interface, easy for users to learn, operate, and maintain.

l Super large data storage capacity. It can realize storage of historical data for no less than 5 years (measurement interval is 1 time/1h), which greatly meets the needs of customers.

l Automatic leakage alarm function. When reagent leakage occurs, the instrument will automatically alarm to remind the user to perform maintenance.

l Light signal recognition function to ensure high accuracy of quantification.

l Simple and convenient chemical reagents maintenance. The reagents can be replaced once a month, which greatly reduces the maintenance of the user.

l U disk one-click upgrade. The software update is much easier.

1 Method basis: spectrophotometry.

2 Measuring range: 0.01～10.0mg/L.

3 Accuracy: ±10% or ±0.1mg/L (the larger of the two).

4 Repeatability: 10% or 0.1mg/L.

5 Measurement period: The minimum measurement period is 30 minutes.

6 Sampling cycle: time interval (10～9999min arbitrarily adjustable) and hourly measurement mode.

7 Calibration cycle: It can be calibrated manually immediately or set cycle for automatic calibration.

8 Maintenance cycle: generally, once a month, each time is about 30 minutes.

9 Output: RS-232.

10 Environment requirements: temperature +5～30℃; humidity ≤90%RH (no condensation).

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