System Overview
The DJ-6494A Integrated Multi-Parameter Water Quality Monitoring System is designed for long-term, continuous monitoring of key water quality parameters, including dissolved oxygen, conductivity, pH, ORP, turbidity, salinity, ammonium nitrogen, COD, suspended solids, chlorophyll, and blue-green algae. All collected data is automatically uploaded to a cloud platform in real time, allowing users to access and monitor the system remotely via any web browser without leaving the office.
The system consists of high-precision sensors, a data acquisition unit, power supply system, and mounting bracket. The water quality sensors feature excellent accuracy and reliability, while the data logger offers data collection, scheduled storage, parameter configuration, a user-friendly interface, and standard communication protocols. It is widely used in meteorology, environmental protection, agriculture, forestry, hydrology, military, warehousing, scientific research, and many other fields.
Key Features
Supports a wide range of sensors including dissolved oxygen, conductivity, pH, ORP, turbidity, salinity, ammonium nitrogen, COD, suspended solids, chlorophyll, and blue-green algae. Additional sensors are available upon request.
Multiple power supply options: AC/DC power or solar-powered systems.
Rugged design for extreme environments: operating temperature range of -20°C to 70°C, with 100% humidity tolerance. Low-temperature operation can be extended to -40°C upon customization.
Fully Chinese-language operation software with simple, intuitive interface and comprehensive Chinese user manual.
Measurable Parameters
Dissolved oxygen, conductivity, pH, ORP, turbidity, salinity, ammonium nitrogen, COD, suspended solids, chlorophyll, blue-green algae, temperature, and others (optional).
Expandable Parameters
Water level, flow velocity, air temperature, relative humidity, atmospheric pressure, wind speed, wind direction, rainfall, etc.
Applications
Widely used by universities, research institutions, and organizations in the fields of meteorology, environmental monitoring, transportation, military, agriculture, forestry, hydrology, polar expeditions, and many others.
DJ-6095 Data Logger Specifications
| Parameter | Specification |
| Operating Temperature | -20°C to +70°C (extendable to -40°C with external battery) |
| Analog Inputs | 8 single-ended inputs, individually configurable for voltage measurement |
| Pulse Counting | 4 channels |
| Frequency Input | 1 channel |
| Voltage Excitation Terminals | 3 terminals |
| 12V Switches | 12 channels |
| SDI-12 | 8 ports |
| RS485 / RS232 | 4 ports |
| Analog Voltage Accuracy | 12-bit resolution, 0–5000 mV range, 50 kΩ input impedance Basic resolution: 1.47 mV Accuracy: ±(0.1% of reading + 2 bits) (-20°C to +40°C) |
| Power Supply | Internal lithium battery: 18–24 V (max charging current 2 A) External battery: 12–16 V |
| Communication Protocols | Modbus, RS485/RS232, SDI-12, and others |
| Internal Storage | 32 MB, stores up to 64,384 records 1 record per hour = approximately 7.3 years of storage |
| Internal Lithium Battery | Optional 16 Ah / 12.8 V LiFePO4 battery (according to requirements) |
| Power Consumption | Sleep: 0.22 mA Measurement: 12 mA (excluding sensors) Network transmission: max 40 mA |
| Mobile Transmission | Supported, built-in SIM card, LTE CAT1 |
| Cloud Platform | Supported, free cloud data storage |
| Charging | Built-in MPPT solar charging control circuit |
| GPS | Built-in high-precision GPS |
| Built-in Sensors | High-precision atmospheric pressure sensor Mainboard temperature monitoring |
