Product Overview:
The residual chlorine online monitor adopts the national standard DPD method for detection. This instrument is mainly used for online monitoring of wastewater from sewage treatment.
This analyzer can operate automatically and continuously without human intervention for a long time based on the settings at the site. It is widely applicable for online automatic monitoring of wastewater treatment indicators.
Product Principle:
This product is based on the chemical reaction between DPD reagent and residual chlorine in water under certain conditions. The reaction produces colored compounds, and the residual chlorine concentration is determined by spectrophotometry.
technical specification
|
Number |
Specification Name |
Technical specification parameters |
|
1 |
test method |
National Standard DPD Method |
|
2 |
measuring span |
0 – 10 mg/L (measured in segments, capable of automatic switching) |
|
3 |
lower limit of detection |
0.02 |
|
4 |
Resolution |
0.001 |
|
5 |
Accuracy |
±10% |
|
6 |
Repeatability |
≤5% |
|
7 |
zero drift |
±5% |
|
8 |
span drift |
±5% |
|
9 |
measurement period |
Less than 30 minutes |
|
10 |
sampling period |
Time interval (adjustable), hourly or trigger measurement mode, can be set |
|
11 |
calibrating period |
Automatic calibration (adjustable from 1 to 99 days), and manual calibration can be set based on actual water samples. |
|
12 |
maintenance period |
The maintenance interval is more than 1 month, and each time it lasts approximately 5 minutes. |
|
13 |
Human-machine operation |
Touchscreen display and command input |
|
14 |
Self-check protection |
The instrument has a self-diagnosis function for its working status. Even if there is an anomaly or a power failure, the data will not be lost. In case of an abnormal reset or a power failure followed by a power restoration, the instrument will automatically remove the remaining reactants and automatically resume operation. |
|
15 |
data storage |
5-year data storage |
|
16 |
One-click maintenance |
Automatically empty the old reagents and clean the pipelines; replace the new reagents, automatically calibrate and automatically verify; it can also be selected to automatically clean the digestion chamber and metering tube using cleaning solution. |
|
17 |
Quick debugging |
Realize unmanned operation, continuous operation, and automatic generation of debugging reports, which greatly facilitates users and reduces labor costs. |
|
18 |
input interface |
switching value |
|
19 |
output interface |
1 RS232 output, 1 RS485 output, 1 4-20mA output |
|
20 |
work 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 |
