PH Controller SUP-MDC-P2 Dual Channel Universal Controller
The MDC-P1/P2 is an advanced, intelligent online multi-parameter controller capable of supporting up to two channels. The first channel’s hybrid mode allows for the connection of either analog or digital sensors, while the second channel connects digital sensors. This controller can measure a variety of parameters including pH, ORP, conductivity, dissolved oxygen, turbidity, sludge concentration, residual chlorine, ammonia nitrogen, nitrate nitrogen, COD, and more. Its continuous monitoring data can be transmitted to a DCS system via output transmission or communicated with a computer using the Modbus-RTU protocol via RS485 interface for remote monitoring and logging. It can also control cleaning systems or pumps.
Characteristics
Measuring ranges:pH/Antimony：(-2.00 ~ 16.00) pH ORP：(-2000 ~ 2000) mV
Temperature types:NTC10K ，Pt1000 ，Pt100
Temperature range:(-10~130)℃
Accuracy:pH：±0.02pH/Antimony：±0.2pH/ORP：±2mV
Measured variables:pH/ORP/Conductivity/Dissolved Oxygen/Turbidity/Sludge Concentration/Inductive Conductivity/ResidualChlorine/Ammonia nitrogen/Nitrate nitrogen/COD, etc.
- Eliminates the need for multiple specialized controllers with automatic digital sensor recognition (plug-and-play).
- IP66 ingress protection for reliable operation in complex working environments.
- Dual-channel design: connect one or two sensors, lowering costs and enabling easy future expansion.
- Optional NB-IoT wireless communication with mobile app support for real-time data viewing.
- Power ground and signal ground separation for enhanced anti-interference performance.
- 4.3-inch full-view color display with quick switching between digital and real-time curve modes.
- Optoelectronic isolation (0/4~20 mA) transmission output with high interference resistance and 0.1% accuracy, compliant with NAMUR NE43.
- Manual and automatic temperature compensation options (linear, pure water, acid, and alkali solution).
- pH electrode health self-diagnostic alerts for optimized maintenance.
- Current simulation function for improved maintainability.
- Optoelectronic isolated RS485 communication interface.
- Storage capacity of up to 500,000 data records.
- Adjustable high/low alarms with configurable hysteresis amount and time.
- Multi-language support: Chinese, English, Spanish, Korean.
- Flexible installation: rack-mounted or wall-mounted.
MDC-P2 controller can measure a variety of parameters including pH, ORP, conductivity, dissolved oxygen, turbidity, sludge concentration, residual chlorine, ammonia nitrogen, nitrate nitrogen, COD, and more. Its continuous monitoring data can be transmitted to a DCS system via output transmission or communicated with a computer using the Modbus-RTU protocol via RS485 interface for remote monitoring and logging. It can also control cleaning systems or pumps. The controller offers an optional NB-IoT wireless transmission module,users can access real-time site conditions on mobile devices.
| Analog sensor input | |
| Measured variables | pH / ORP / Antimony |
|---|---|
| Measuring range | pH(Antimony: -2.00 ~ 16.00 pH) ORP: (-2000 ~ 2000) mV |
| Input impedance | ≥1012Ω |
| Temperature types | NTC10K , PT1000 , PT100 |
| Temperature range | -10~130℃ |
| Input | pH: 0.02pH Antimony: ±0.2pH ORP: 2mV |
| Accuracy | NTC10K: ±0.6℃, accuracy ±0.3℃ (-60~130℃); accuracy ±2℃ PT1000 accuracy: ±0.3℃ PT100 accuracy: ±0.5℃ |
| Resolution | pH/Antimony: 0.01pH; ORP: 1mV |
| Repeatability | 0.02pH |
| Temperature compensation | Manual compensation; Automatic compensation: Linear, Acid, Base, Pure |
| Digital sensor input | |
| Measured variables | pH/ORP/Conductivity/Dissolved Oxygen/Turbidity/Sludge Concentration/Inductive Conductivity/Residual Chlorine/Ammonia nitrogen/Nitrate nitrogen/COD, etc. |
| Measuring ranges |
pH: 0.00 ~ 14.00 pH ORP: (-2000 ~ 2000) mV Dissolved oxygen: 0~40 mg/L Saturation: 0~200% Conductivity: (0~5000) μS/cm Turbidity: 0~4000 NTU Sludge concentration: 0~120000 mg/L Inductive conductivity: (0~2000) mS/cm Residual chlorine: 0~100 mg/L Ammonia nitrogen: 0~1000 mg/L Nitrate nitrogen: 0~1000 mg/L COD: 0~1500 mg/L |
| Note: Actual measurement ranges should refer to the technical data of the connected sensors. | |
| Output | |
| Current output | Isolated, 2-channel (0/4~20 mA, configurable to corresponding measurement ranges, load capacity 750Ω, output accuracy ±0.1%FS, compliance with NAMUR NE 43) |
| Standards | Standard |
| Communication output | Isolated, RS485 interface, Modbus-RTU communication protocol |
| Alarm output | 3-channel SPST: 2 alarms + 1 cleaning, NO/NC type, capacity 250VAC, 5A |
| Alarm relay delay | 0~9999 seconds, adjustable |
| Electrical specifications | |
| Power supply | AC: 85~265V, 50/60Hz DC: 21.6~26.4V |
| Power consumption | ≤28W |
| Cable entries | M20*1.5 cable gland |
| Cable specification | Spring terminals: suitable for AWG16~AWG28 (0.2mm²~1.5mm²) 2 cables; Plug-in terminals: suitable for AWG16~AWG28 (0.2mm²~2.5mm²) 2 cables; |
| Environment | |
| Operating environment | Temperature: 0~60℃ Relative Humidity: 10~85% (non-condensing) |
| Storage environment | Temperature: -15~65℃ Relative Humidity: 5%~95% (non-condensing) Altitude: <2000m |
| Ingress protection | IP66 |
| Flame Retardancy | UL94V-0 |
