Product Description：
Phosphorus Hazards to Marine Life Most
marine organisms are highly sensitive to
organophosphorus pesticides. Concentrations
that cause no reaction in pesticide-resistant
insects can rapidly prove lethal to marine
life. The human body contains an essential
neurotransmitter enzyme called
acetylcholinesterase.
Organophosphorus compounds inhibit this enzyme, preventing it from breaking down acetylcholine. This leads to the accumulation of acetylcholine in the nervous system, causing poisoning and potentially fatal outcomes in severe cases. Long-term exposure to low doses of organophosphate pesticides can cause chronic poisoning and may pose carcinogenic and teratogenic risks to humans.
Product Principle：
The water sample, catalyst solution, and strong oxidizing agent digestion solution are mixed. Under high-temperature, high-pressure acidic conditions, polyphosphates and other phosphorus-containing compounds in the water sample are oxidized by the strong oxidizing agent to form phosphate ions. In the presence of the catalyst, these phosphate ions react with the molybdate-containing strong acid solution to form a colored complex. The analyzer detects this color change and converts it into an orthophosphate value output. The amount of colored complex formed corresponds to the orthophosphate content.
Technical Specifications：
|
SN |
Specification Name |
Technical Specifications |
|
1 |
Test Method |
Phosphomolybdenum Blue Spectrophotometric Method |
|
2 |
Measurement Range |
0–50 mg/L (segmented measurement, expandable) |
|
3 |
Accuracy |
20% of full scale standard solution, not exceeding ±5% |
|
50% of full scale standard solution, not exceeding ±5% |
||
|
80% of full scale standard solution, not exceeding ±5% |
||
|
4 |
Limit of Quantification |
≤0.02mg/L |
|
5 |
Repeatability |
≤2% |
|
6 |
24h Low-Concentration Drift |
≤0.01mg/L |
|
7 |
24h High-Concentration Bleaching |
≤1% |
|
8 |
Measurement Cycle |
Minimum test cycle: 20 minutes, configurable |
|
9 |
Sampling Cycle |
Time interval (adjustable), hourly, or trigger measurement mode, configurable |
|
10 |
Calibration Cycle |
Auto-calibration (adjustable from 1 to 99 days), manual calibration can be set based on actual water samples. |
|
11 |
Maintenance Cycle |
Maintenance intervals exceed one month, with each session lasting approximately 5 minutes. |
|
12 |
Human-Machine Operation |
Touchscreen Display and Command Input |
|
13 |
Self-Diagnostic Protection |
The instrument performs self-diagnostics during operation and retains data after abnormalities or power loss. Following abnormal resets or power restoration, it automatically purges residual reagents and resumes normal operation. |
|
14 |
Data Storage |
5-Year Data Storage |
|
15 |
One-Button Maintenance |
Automatically drains old reagents and cleans tubing; replaces new reagents, performs automatic calibration and verification; optional automatic cleaning of digestion cells and metering tubes with cleaning solution. |
|
16 |
Quick Debugging |
Achieve unattended, uninterrupted operation with automatic generation of debugging reports, greatly enhancing user convenience and reducing labor costs. |
|
17 |
Input Interface |
switching value |
|
18 |
Output Interface |
1 channel RS232 output, 1 channel RS485 output, 1 channel 4–20 mA output |
|
19 |
Operating Environment |
Indoor operation, recommended temperature range: 5–28℃, humidity ≤90% (non-condensing) |
|
20 |
Power Supply |
AC220±10%V |
|
21 |
Frequency |
50±0.5Hz |
|
22 |
Power |
≤150 W (excluding sampling pump) |
|
23 |
Dimensions |
520 mm (H) × 370 mm (W) × 265 mm (D) |
