PROBEST DXC20+PUVCOD-900 UV254 Spectrometer Organic Online Analyzer, OEM Reagent-Free COD BOD TOC Water Monitoring System for Wastewater
Product Description
PROBEST DXC20+PUVCOD-900 UV254 organic online analyzer supports OEM, reagent-
free COD/BOD/TOC testing. Auto-clean probe, multi-install controller, 4-20mA relay output for sewage, industrial & fishery water continuous
PROBEST DXC20+PUVCOD-900 UV254 spectrometer organic online analyzer is an OEM-support integrated water quality monitoring system, consisting of DXC20 digital controller and PUVCOD-900 UV immersion sensor. Based on SAC254 ultraviolet absorption principle, it real-time converts water organics into COD, BOD, TOC data without reagents. Equipped with auto-clean probe, visual alarm, multi-mount controller and MODBUS RS485 communication, it realizes long-term unattended online monitoring for wastewater plants, industrial discharge, surface water and aquaculture water.
H1：PROBEST DXC20+PUVCOD-900 UV254 Spectrometer Organic Online Analyzer | OEM Reagent-Free COD BOD TOC Monitoring System
H2：1. Measurement Principle of DXC20+PUVCOD-900 Organic Online Analyzer
H2：2. Core Product Advantages & Features
H3：2.1 Integrated Probe + Controller Complete Monitoring System
Matching DXC20 dedicated display controller + PUVCOD-900 UV organic sensor, one set realizes real-time display, data output and over-limit alarm of COD/BOD/TOC, plug-and-play without extra supporting equipment.
H3：2.2 Direct Immersion Probe, No Sampling & Pretreatment
Submersible probe can be directly put into sewage tanks, drainage outlets, rivers and aquaculture ponds, no sampling pump, flow cell or pre-filter required, simplifying field construction.
H3：2.3 Reagent-Free Operation, Zero Secondary Pollution
No chemical reagents consumed during long-term operation, no hazardous waste discharge, meets global environmental protection standards and lowers long-term operating expenditure.
H3：2.4 Automatic Sensor Cleaning & Low Maintenance Cost
Built-in self-cleaning device regularly cleans the optical window to resist sludge, algae and biofilm adhesion, stabilize measuring accuracy and reduce manual maintenance workload.
H3：2.5 Multi-Mount DXC20 Controller with Sunlight Visible LCD
The controller supports wall-mounted, panel-mounted and pipe-mounted installation; 128*64 dot matrix LCD with high-brightness backlight works normally under direct sunlight for outdoor monitoring stations.
H3：2.6 Visual Alarm & Multi-Channel Signal Output
Built-in visual alarm system for abnormal organic load early warning; equipped with 3-way programmable 4-20mA analog output and 3-way relay switch, convenient for linkage with dosing pumps and control valves.
H3：2.7 Stable MODBUS RS485 Digital Communication
Standard MODBUS RS485 protocol, compatible with SCADA, industrial PLC, data recorders and remote environmental monitoring cloud platforms for remote data transmission.
H3：2.8 Neutral OEM Customization Support
Provide neutral OEM service without brand logo; support customized cable length, measuring range, output parameters and housing labeling to meet distributors and system integrators’ private brand demands.
H3：2.9 Wide Application Temperature & High Waterproof Grade
Sensor IP68/NEMA6P, controller IP66/NEMA4X; optional SUS316L stainless steel (freshwater) or titanium alloy (seawater) probe body for various water quality scenarios.
H2：3. Typical Application Scenarios
Municipal wastewater treatment plant: Real-time COD/BOD/TOC monitoring of inlet and outlet water, organic load continuous tracking in biochemical tanks
Industrial wastewater discharge: Chemical, food, printing and textile factory effluent online pollution monitoring
Surface water environment supervision: River, lake, reservoir long-term in-situ organic matter detection
Fishery & aquaculture wastewater: Breeding water organic pollutant real-time early warning
Environmental online monitoring stations, floating water quality buoys, factory automatic drainage monitoring systems
H2：4. Complete Technical Specifications
H3：4.1 PUVCOD-900 UV Sensor Parameters
| Item | Technical Data |
|---|---|
| Measuring Range (KHP Calibration) | COD:0–2000mg/L(2mm),0–1000mg/L(5mm),0–90mg/L(50mm) BOD:0–1500mg/L(2mm),0–750mg/L(5mm),0–60mg/L(50mm) TOC:0–800mg/L(2mm),0–400mg/L(5mm),0–35mg/L(50mm) |
| Accuracy | ±5% (KHP Standard Solution) |
| Repeatability | ±2% (KHP Standard Solution) |
| Resolution | 0.01mg/L |
| Max Working Pressure | ≤0.4Mpa |
| Sensor Housing | SUS316L (Fresh Water); Titanium Alloy (Marine Seawater) |
| Cable Material | PUR Waterproof Cable |
| Cable Length | Standard 10m, Max extendable to 100m |
| Storage Temp | -15℃ ~ 50℃ |
| Measuring Temp | 0℃ ~ 45℃ (Non-freezing) |
| Protection Class | IP68 / NEMA6P |
| Size & Weight | Diam 69mm × L365mm, 3.2KG |
H3：4.2 DXC20 Controller Parameters
| Item | Technical Data |
|---|---|
| Display | 128*64 Graphic LCD with LED high backlight, sunlight readable |
| Power Supply | AC 85–500VAC / DC 9–36VDC |
| Housing Material | Cover: PA66+GF25+FR; Lower shell: Aluminum alloy powder coating |
| Analog Output | 3 programmable 4-20mA channels |
| Relay Output | 3 programmable relay switches for alarm linkage |
| Communication | MODBUS RS485 |
| Storage Temperature | -20℃ ~ 70℃ |
| Working Temperature | -15℃ ~ 60℃ |
| Protection Grade | IP66 / NEMA4X |
| Dimension | L145mm × W125mm × H162mm |
| Weight | 1.35KG |
H2：5. System Advantages vs Traditional COD Monitoring Equipment
Full integrated system: One-stop solution of sensor + display controller, convenient for project matching
Neutral OEM available: Support private label, help distributors build own water quality instrument brand
No reagent cost: Save chemical purchasing, transportation and waste liquid disposal expenses
Direct immersion measurement: Avoid sampling loss and manual testing errors
Auto-clean probe: Greatly reduce on-site maintenance labor cost
Multi-signal output: Analog + relay + RS485, flexible access to all industrial control systems
Dual corrosion-resistant probe materials: Adapt to freshwater and high-salinity marine water
Multi-install controller: Adapt to various monitoring station layout requirements
H2：6. FAQ Module
Q1: Does PROBEST DXC20+PUVCOD-900 support OEM service?
Yes, we provide neutral OEM customization without PROBEST logo, support customized packaging, labeling and parameter settings for global distributors and system integrators.
Q2: What organic indicators can this online analyzer detect?
It can real-time output COD, BOD and TOC three core organic pollution indexes via KHP calibration.
Q3: Can the DXC20 controller be installed on pipeline or cabinet panel?
Support wall-mounted, panel-mounted and pipe-mounted three installation methods for different site conditions.
Q4: Is the probe suitable for seawater monitoring?
Optional titanium alloy probe housing with strong anti-corrosion performance for ocean and high-salinity wastewater.
Q5: Does the system need regular manual cleaning?
The PUVCOD-900 probe has automatic cleaning function, only simple periodic inspection is required.
H2：7. Why Choose PROBEST DXC20+PUVCOD-900 OEM UV COD Monitoring System