Online TOC analyzer
1. Product Overview
The TOC-5000 UV Method Online Total Organic Carbon (TOC) Analyzer is a fully automatic online water quality monitoring instrument independently developed by Shandong Dongrun Meter Technology Co., Ltd. (referred to as “Dongrun Meter”). Its core principle is based on wet chemical oxidation and NDIR (Non-Dispersive Infrared) detection technology. The specific process is as follows:
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The water sample is mixed with acidic reagent and purged to remove inorganic carbon.
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Organic carbon is fully oxidized to carbon dioxide under the synergistic action of UV light and oxidant.
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The carbon dioxide is quantitatively analyzed by an NDIR detector to achieve precise measurement of the total organic carbon content.
2. Product Highlights (8 Core Advantages)
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No External Carrier Gas Required: Built-in gas generator lowers overall costs and enables immediate start-up.
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Environmentally Friendly Discharge: Integrated waste liquid neutralization unit allows for safe, near-neutral pH direct discharge.
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Independent & Stable Gas Supply: Separate carrier and purge gas streams, with precise flow control via Mass Flow Controllers (MFC).
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Automatic Zero Calibration: Regularly checks baseline and automatically corrects for drift.
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Intelligent Software System: Highly scalable software with responsive touch controls and remote monitoring support.
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Eliminates Clogging: Valve-free flow path design minimizes clogging risk and maintenance.
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Automatic Cleaning System: Smart programs automate pipeline cleaning, reducing manual intervention.
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Intelligent Alert Management: Interface provides alerts for consumable lifespan and key component lifecycle.
3. Technical Specifications
| Parameter Category | Specifications |
|---|---|
| Measuring Range | 0-5/10/50/100/200 mg/L (other ranges customizable) |
| Accuracy | ±4% of reading (at 50% of range) |
| Lower Limit of Quantitation | ≤0.2 mg/L (for 0-5 mg/L range) |
| Repeatability | ±4% of reading (at 50% of range) |
| Response Time | Starting from 8 min, depending on measurement range |
| Display Resolution | 0.01 / 0.1 mg/L |
| Measurement Modes | Continuous / Liquid Level Trigger / Remote Control via Digital Communication |
| Automatic Operations | Auto carrier gas zero calibration, auto range calibration, auto verification, auto cleaning |
| Output Interfaces | Analog: 2 channels 4-20mA; Digital: Modbus-RTU RS485; Relay: 2 channels (Event + Fault Alarm) |
| Digital Inputs | 2 channels (1 for remote start, 1 for liquid level detection) |
| Data Export | USB interface |
| Waste Discharge | Pressure-less discharge; automatic waste neutralization |
| Operating Environment | Temperature: 5-40°C; Relative Humidity: ≤90% (non-condensing) |
| Power Requirements | 220V AC, 50Hz, Power Consumption: ≤120 VA |
| Dimensions & Weight | 600mm (H) × 800mm (W) × 250mm (D); Weight: 40 kg |
| Installation | Wall-mounted |
4. Application Fields
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Process Leak Detection: Steam condensate, boiler condensate, circulating water.
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Boiler Water Quality Monitoring: Boiler feedwater, boiler make-up water.
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Municipal Water Quality Monitoring: Drinking water, source water, distribution network water, recycled water.
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Environmental Water Monitoring: Surface water, groundwater.
Why Choose Dongrun Online Analyzers?
1μL High-precision Injection System Exclusive Patented Design.
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Accuracy
Replaces traditional peristaltic pumps with a more accurate injection pump, achieving precision to 1μL.
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Durable
The main components such as pumps and valves require no maintenance within one year.
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Cost-saving
Eliminates the need for pump tubing, saving on consumable replacements.
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Safety
Automatic activation of protective functions if the water tank is found to be empty, preventing pump damage.
Core Component Colorimetric Module Independently Developed and Manufactured
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The colorimetric module features reference light measurement functionality
It can mitigate interference from fluctuations in light sources or temperature changes on measurement results.
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50% increase in light source lifespan
Automatically controls light-on time to extends the lifespan of the light source, reducing aging.
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The program automatically adjusts the intensity of the light source
No manual intervention or maintenance required.
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The colorimetric module’s heating function is safe and reliable
Real-time monitoring of temperature rise rate, over-temperature alarm, and a fully enclosed design.
Advanced Quality Control Calibration System
| option | Regular brands | Dongrun | Value |
|---|---|---|---|
| Failure verification calibration | Manual adjustment in case of verification failure | Instrument automatically initiates recalibration in case of verification failure | More convenient |
| Selectable range | Only fixed range | High, medium, and low multiple ranges are available | Applicable range is more extensive |
| Verification method | Only range verification | Automatic zero-check and range verification, two methods | More accurate |
Low-Medium-High 3-in-1 Range System
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Three ranges
Instrument offers high, medium, and low three ranges.
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Customizable range values
Users can define range values for both the medium and high ranges. instrument will automatically adjust to match.
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Effortless operation
After switching between manual and automatic modes, there’s no need to recalibrate the instrument.
After changing the range, only single-point calibration is required, with no need for calibration of the working curve.
One-click waste discharge and one-click reagent filling.
Key operations are visualized, allowing real-time signal monitoring.
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Two modes of manual and automatic
In manual mode, users can select a specific range for measurement.
In automatic mode, the instrument will automatically switch ranges based on the measurement results.
