Introduction:
RO-8200 is an all-in-one intelligent control system independently developed by Hebei JIRS, specially designed for two-stage reverse osmosis water treatment equipment. It integrates 4-wire resistive touch screen, PLC logic control and EC301 conductivity data acquisition transmitter, realizing full-process automatic operation, real-time triple water quality monitoring, fault alarm and remote Modbus communication for double-stage RO pure water, ultra-pure water and seawater desalination systems, supporting unattended running.
This controller adopts high-speed American MCU processing chip with full digital anti-interference design. Standard 7-inch touch screen (10-inch optional, 800*480 resolution) delivers dynamic real-time flow chart display, intuitively showing the operating status of pumps, valves and water tanks. Two versions are available: single-stage RO and double-stage RO. RO-8200 supports both with intermediate tank and without intermediate tank two-stage RO processes.
Core Competitive Advantages：
Complete Pre-programmed Double-Stage RO Automatic Logic：
All standard RO operation sequences are preloaded in the system, no secondary programming required:
Startup flushing, timed circulation flushing, water-full auto flush, high/low pressure interlock, multi-tank liquid level linkage, dosing pump control, pretreatment interlock and audible/visual alarm relay output. Users can freely adjust all time delay parameters on screen and switch Auto/Manual mode with one tap.
Industrial DIN Rail Hardware, Strong Anti-Interference：
Power input: AC220V main power; isolated DC24V output for HMI & EC transmitter
Relay output: 10 groups of 3A/220V relay ports for all pumps and valves
DIN rail mounting for controller and EC301 transmitter, easy cabinet installation
Isolated circuit design to resist EMI from frequency converters and power cables Note: External intermediate relay must be used for high-power pumps or large solenoid valves.
RS485 Modbus RTU Remote Communication：
Standard PORT1 RS485 communication interface connects to EC transmitter and upper computer/PLC/IoT gateway. Clients can remotely read all conductivity data, pump running status, valve signals and fault codes, realizing equipment centralized networking, cloud monitoring and data recording for factory automation.
Multilingual Visual Operation & Permission Lock：
Built-in 3 system languages: English, Chinese, Persian. Dynamic flow chart marks running devices with green/red status indicators. User login password lock prevents accidental misoperation; independent dedicated pages for conductivity calibration, flushing parameter setup, system delay adjustment, password reset and fault history inquiry. Default login password: 111111.
Main Technical Specifications：
| Item | Parameter |
|---|---|
| Touch Screen | 7” standard / 10” optional, 800×480 resolution, 4-wire resistive touch |
| Signal Input | 14 groups NO/NC switch signals (liquid level, pressure, overload, pretreatment, emergency stop) |
| Relay Output | 10 channels 220VAC relay (LP pump, HP1/HP2, dosing pump, inlet/outlet/flush valves, drain valve, alarm) |
| Communication | RS485 Modbus RTU |
| Power Supply | Controller AC220V input, isolated DC24V output |
| Conductivity Sensor | 1.0cm⁻¹ constant, 4.5m standard cable, max extension ≤30m |
| Precision Class | 1.5 |
| Working Pressure of Electrode | 0~0.5MPa |
| Installation | DIN rail mounting |
| Operation Language | English, Chinese, Persian |
Standard Complete Package List：
Display screen 1pc
Conductivity/TDS transmitter 1pc
Controller 1pc
Conductivity /TDS Sensors 3pcs x 1.0cm-1
Electrical wiring diagram 1pc
Operation Manual 1pc
Product Image Display：
Color Touch Screen Appearance
Controller Apperance
Conductivity transmitter
