DO6800 Dissolved Oxygen and Temperature Controller China Factory Suppliers

The DO-6800 online Dissolved Oxygen and Temperature Transmitting Controller from our China factory offers high-precision monitoring with automatic temperature compensation and Modbus RS485. As leading suppliers, we provide this micro computerized instrument featuring a large LCD and IP57 protection for industrial water treatment.

Product Details

Product Details

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Product Details

The DO-6800 is a high-precision online Dissolved Oxygen and Temperature Transmitting Controller designed for rigorous industrial and environmental monitoring. Engineered for versatility, it supports both Polarographic and Galvanic DO sensors, ensuring seamless integration into diverse water treatment workflows, boiler deoxygenation processes, and aquaculture systems where precise oxygen regulation is critical for operational success.

Combining a large-screen multi-parameter LCD with advanced automatic temperature compensation (NTC 10K), the DO-6800 delivers real-time, accurate data tracking. With its robust IP57 protection grade and isolated 4-20mA signal output, this controller ensures maximum stability and reliability in challenging environments, making it an essential tool for water quality pollution prevention and environmental safety.

Detailed Parameters

Measuring Range0.0 - 20.00 mg/L (ppm) / 0 - 200.0 ug/L (ppd) Temperature Range0-60℃ / 0-100℃ (Optional)
Resolution0.1 ug/L, 0.01 mg/L, 0.1℃ Accuracy (mg/L)±2% FS / ±0.3℃
Display TypeLarge Screen Multi-parameters LCD Temp. CompensationNTC 10K Automatic Compensation
Signal OutputIsolated 4 ~ 20mA Current Output Control OutputTwo sets of ON/OFF relay contacts
CommunicationStandard Modbus RS485 (Optional to PC) Power SupplyAC 220V±10%, 50/60Hz

Key Advantages

Industrial Protection

Boasts an IP57 protection rating, ensuring the device remains operational and safe against dust and water immersion in harsh industrial settings.

Real-time Monitoring

Provides continuous, high-resolution dissolved oxygen tracking with a large LCD for instant on-site data verification.

Dual Sensor Support

Compatible with both Polarographic and Galvanic sensors, allowing users to choose the best sensing technology for their specific application.

Smart Compensation

Integrated NTC 10K automatic temperature compensation eliminates errors caused by temperature fluctuations in water.

Isolated Output

Features optically isolated relay outputs and isolated current signals to protect the system from electrical interference.

Digital Integration

Standard Modbus RS485 communication allows for seamless integration with PLC and PC-based management systems.

Product Gallery

Management Platforms

Boiler Deoxygenation

Precisely control dissolved oxygen levels to prevent corrosion in industrial boiler systems.

Wastewater Treatment

Optimize aeration processes in biological treatment plants to reduce energy costs.

Aquaculture Control

Maintain ideal oxygen levels for aquatic livestock to ensure growth and prevent mortality.

Env. Monitoring

Continuous monitoring of river and lake water quality for environmental compliance.

PLC Integration

Seamless connectivity via RS485 Modbus for centralized factory automation control.

Remote Alerting

Configure high/low alarm relay points for immediate notification of critical oxygen drops.

Investment Return Comparison

MetricLabor CostData AccuracyResponse TimeEnergy EfficiencyRisk Mitigation
Manual SamplingDO-6800 Online System
High (Daily Manual Testing)Minimal (Automated)
Variable (Human Error)High (Constant Precision)
Delayed (Batch Analysis)Instant (Real-time)
Low (Inefficient Aeration)High (Demand-based Control)
Reactive (Post-failure)Proactive (Alarm Alerts)

Frequently Asked Questions

Q: What is the difference between Polarographic and Galvanic sensors in DO-6800?

Polarographic sensors require a polarization period before measurement and typically have a longer lifespan, while Galvanic sensors are ready for immediate use but may have different maintenance intervals.

Q: How does the automatic temperature compensation work?

The DO-6800 uses an integrated NTC 10K thermistor to detect water temperature and automatically adjusts the oxygen reading based on the solubility of oxygen at that specific temperature.

Q: Can the DO-6800 be integrated into a SCADA system?

Yes, via the optional Modbus RS485 communication output, the controller can be linked to most industrial SCADA systems and PLCs for centralized data management.

Q: What is the meaning of the IP57 protection grade?

IP57 means the device is completely protected against dust and can withstand temporary immersion in water (up to 1 meter for 30 minutes), making it ideal for humid environments.

Q: How do the alarm relay outputs function?

The controller features two sets of ON/OFF relays that can be programmed to trigger when DO levels hit a specific high or low threshold, activating pumps or sirens.

Q: Is the 4-20mA output signal isolated?

Yes, the current output is isolated to prevent ground loops and protect the internal circuitry from external electrical surges, enhancing overall system stability.

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FAQS

What's the MOQ?

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1set sample is available.

What's your price?

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We quoted based on your products’ code and qty. We can offer different discount depending on qty.

I am not sure of the required product type, how to get quotation?

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Please tell us the details of your project: Measuring range, temperature, pressure, If need relay control output, 4-20mA or Modbus RS485 output? We will choose suitable product type as per your project details and make quotation for you.

How long is your delivery time?

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Most of our products are in stock. Generally, we can delivery to you within 2-3 working days. The big order’s delivery time will be determined according to the type and quantity of products ordered.

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We accept T/T, Paypal, Western Union, Alipay, credit card, wechat and other suitable payment.
                  
       
                

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