Product Overview:
The Aniline Online Water Quality Auto-Analyzer is a fully automated online analyzer controlled by a PLC system. It is suitable for real-time monitoring of various water types, including river water, surface water, and industrial wastewater from dye, pharmaceutical, and chemical industries. After filtration, the sample is pumped into a reactor where interfering substances are first removed through decolorization and masking. The pH of the solution is then adjusted to achieve optimal acidity or alkalinity, followed by the addition of a specific chromogenic agent to react with aniline in the water, producing a color change. The absorbance of the reaction product is measured, and the aniline concentration in the sample is calculated using the absorbance value and the calibration equation stored in the analyzer.
Product principle:
In acidic conditions (pH 1.5 – 2.0), aniline compounds undergo diazotization with nitrite, and then couple with N-(1-naphthyl) ethylenediamine hydrochloride to form a purple-red dye. This dye is then determined by spectrophotometry.
Technical specification：
|
序 |
Specification Name |
Technical specifications and parameters |
|
1 |
test method |
N-(1-Naphthyl) ethylenediamine azo spectrophotometric method |
|
2 |
Measurement range |
0 – 1.5 mg/L (segmented measurement, scalable) |
|
3 |
Detection limit |
≤0.03 |
|
4 |
Resolution |
0.001 |
|
5 |
Accuracy |
±10% |
|
6 |
Repeatability |
≤5% |
|
7 |
Zero-point drift |
±5% |
|
8 |
Range drift |
±5% |
|
9 |
Measurement period |
Less than 40 minutes, the dissipation time can be set |
|
10 |
Sampling period |
Time interval (adjustable), on-the-hour, or trigger measurement mode, configurable |
|
11 |
Calibration period |
Automatic calibration (adjustable from 1 to 99 days), manual calibration can be set according to actual water samples |
|
12 |
Maintenance period |
Maintenance interval is greater than 1 month, each time about 5 minutes |
|
13 |
Human-machine operation |
Touchscreen display and command input |
|
14 |
Self-check protection |
The instrument performs self-diagnosis of its operating status. Data will not be lost in case of abnormalities or power outages. After abnormal reset or power resumption, the instrument automatically removes residual reactants and resumes operation automatically. |
|
15 |
Data storage |
5-year data storage |
|
16 |
One-click maintenance |
Automatically empty old reagents and clean the pipelines; replace new reagents, automatically calibrate, and automatically verify; optional cleaning solution can automatically clean the digestion cell and metering tube |
|
17 |
Quick debugging |
Achieve unattended, uninterrupted operation, automatically complete debugging reports, greatly facilitating users and reducing labor costs. |
|
18 |
Input interface |
Switch quantity |
|
19 |
Output interface |
1 RS232 output, 1 RS485 output, 1 4-20mA output |
|
20 |
Working environment |
For indoor work, the recommended temperature range is 5 to 28 degrees Celsius, and the humidity should be no more than 90% (without condensation). |
|
21 |
Power supply |
AC220±10%V |
|
22 |
Frequency |
50±0.5Hz |
|
23 |
Power |
≤150W, without sampling pump |
|
24 |
Inches |
Height: 520 mm, Width: 370 mm, Depth: 265 mm |
