Suzhou Delfino Environmental Technology Co., Ltd.
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RS485 Modbus MODBUS RTU Single Channel Digital Intelligent PH/ ORP Controller
The single-channel digital intelligent controller of the DUC1 series is a small, compact and lightweight design, which is suitable for the panel installation of the cabinet.
The instrument is connected to and controls other equipment through a relay, and can also use 4~20mA current signal or RS485 digital signal to transmit instrument information.
Product Parameters
| Instrument information/model | Online single channel intelligent controller | DUC2-A1-PH |
| Detection channel | specified digital sensor | single channel input |
| Display screen | 3.2-inch black and white graphic LCD display, pixel 128*64 dot matrix LCD | √ |
| Instrument operation | PET button panel | 8 buttons |
| System language | support customization | English |
| Power-off protection | the instrument is powered off, and the set data is permanently retained | √ |
| Historical data | It can record 10,000 historical data, support historical data download, and the recording interval can be set between 1 and 999 minutes | √ |
| Calibration log | records the last 100 times | √ |
| Menu password | management of operation rights, six-digit password setting | √ |
| Relay output | 2 settable SPST relays, maximum load 3A/250VAC | 2ways |
| Setting objects: including high/low alarm, water temperature or wash control | √ | |
| Current output | 0/4~20mA can be set active current loop, load 1000 ohm, support long-term calibration | 1 channel |
| Digital communication | communication interface: two-wire RS485 interface | 1个 |
| Communication protocol: MODBUS RTU | √ | |
| Protection grade | Dustproof and waterproof grade | IP66 |
| Operating environment | 0～60℃, relative humidity less than 95%RH (no condensation) | √ |
| Storage environment | 20～70℃, relative humidity less than 55%RH (no condensation, precision instrument) | √ |
| Instrument dimensions | mm | 100*100*120 |
| Installation hole size | mm | 92*92 |
| Installation method | cabinet panel installation | √ |
| Shell Material | Reinforced ABS | √ |
| Electrical interface | 3 M12*1.5 Glenn heads, wire diameter 3~6.5mm | √ |
| Power requirements | AC:100～240V,50~60Hz；DC:+18~36V | AC and DC optional |
| Maximum power | 7W | |
| Instrument weight | 700g | |
Brief introduction:
● Compatible with all DRFN digital pH 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 English language interface;
● Password can be set to prevent misoperation;
● 2 SPST multi-function and settable relays;
● Two way 0/4~20mA active current loop outputs;
● RS485 interface, Modbus RTU communication protocol;
● IP66 waterproof level, sealed enclosure can isolate pollution and corrosive gas;
●The meter has a self-diagnostic function.
It can diagnose the PH/ORP sensor during calibration and maintenance. If the operation is improper or the PH/ORP sensor has poor characteristics, the screen will display the image and the buzzer will prompt briefly. It is recommended that the user re-maintain or replace the sensor.
●The ORP PH controller can not only compensate the temperature of the test sample by connecting the temperature sensor, but also self-check the working temperature of the instrument in real-time. When the working temperature of the instrument changes, the instrument will compensate for the hardware changes caused by the temperature drift accordingly, making the detection result more accurate, this is a patented technology of daruifuno.
Aplication:
◇ Surface water
◇ Source water
◇ Aquaculture waters
◇ Landscape water
◇ Import of the waterworks
◇ Water treatment monitoring
◇ Drinking water,
◇ Groundwater, swimming pool
◇Industrial process monitoring and dosing control management
◇Chemical, petroleum, paper, food and medicine, electroplating, PCB manufacturing, etc.
FAQ
1. How many relays the controller with?
2 settable SPST relays, maximum load 3A/250VAC
Setting objects: including high/low alarm, water temperature or wash control
2. How many Current output the controller with?
One way 0/4~20mA can be set active current loop, load 1000 ohm, support long-term calibration