Digital RS485 Interface Modbus COD Controller For Surface Water Monitoring
The COD analyzer uses UV254 nanometer ultraviolet absorption method to measure, and the measurement process does not require consumables. In addition, another compensation light source can effectively eliminate the influence of turbidity and chromaticity, and achieve more stable and reliable measurement.
Specification:
| Model | DUC2-COD-H-A |
| Software Version | DRFN COD Analysis software V1.0 |
| Sensor Input | Compatible with all DRFN's COD Digital Sensors |
| Display Range | 0-1000mg/L |
| Resolution | 0.01 mg/L |
| Relay Control | 2 settable SPST relays with a maximum load of 3A/250VAC |
| Analog Current Output | 2 settable 0/4~20mA current outputs with a maximum load of 1000Ω |
| Communication Method | Two-wire RS485 interface MODBUS RTU support JSON text data format |
| OTA | —— |
| Display Screen | 128*64 black-and-white graphic lattice LCD adjustable backlight mode adjustable display rate |
| Configuration Information | Power off protection, parameters are retained indefinitely |
| Time/Data Record | Year/month/day/hour/min/second, record 14000 historical data record interval can be set between 1~999 minutes |
| Maintenance Records | Last 100 times |
| Protection Level | IP66 |
| Operating Environment | 0～60℃,RH<95% ( no condensation) |
| Storage Environment | -20～70℃, RH<55% ( no condensation, precision instruments) |
| Shell Material | Enhanced ABS |
| Dimension | 144*144*120 mm |
| Mounting Method | Wall mounting, pipe clamping, panel installation (hole size 138*138 mm) |
| Electrical Interface | The back end reserved 3 M12*1.5 Gram head, line diameter 3~6.5 mm |
| Power Supply | 100～240VAC |
| Power Consumption | About 7W |
| Weight | About 800g |
Please click the user manual of RS485 COD controller here:
COD controller User Manual.pdf
Brief introduction:
● Compatible with all DRFN digital COD sensors;
● Separately have a list of controller and sensor settings for quick and detailed parameter setting;
● The working status of the sensor can be queried, including reading the serial number;
● Support a variety of installation methods；
● Time and historical data recording function;
● 3.2-inch large LCD screen;
● User-friendly Chinese and English language interface;
● Password can be set to prevent misoperation;
● 2 SPST multi-function and settable relays;
● Two 0/4~20mA active current loop outputs;
● RS485 interface, Modbus RTU communication protocol;
● IP66 waterproof level, sealed enclosure can isolate pollution and corrosive gas;
Aplication:
◇ Surface water
◇ Process water
◇ Sewage treatment plant
◇ Industrial wastewater
◇ Drinking water
◇ River
FAQ
1. Which sensors can be connected to your COD controller?
A: The COD meter can be compatible with DRFN digital COD sensors.
2. How does your COD controller collect sensor data?
A: The connected sensor uploads the detected data in a special encrypted communication method to ensure that the controller can collect high-precision data more stably
3. Does the COD controller have an ambient temperature alarm function?
Our COD controller has ambient temperature alarm function
4: How long is your delivery time?
A: Generally it is 3 days if the goods are in stock. or within 20 days if the goods are not in stock, it is according to quantity.
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