Brand：Erun
Name：COD Online Water Quality Monitor
Model：ERUN-SZ4-A-J5
Parameter：COD(UV absorption)
ERUN-SZ4-A-J5COD online monitor, relying on advanced UV absorption technology, accurately captures the absorption characteristics of organic matter under the UV light of 254nm wavelength, so as to realise the accurate measurement of dissolved COD (Chemical Oxygen Demand) in water. One of the highlights of the monitor is the innovative design of the sensor, which does not require additional reagents, thus fundamentally avoiding pollution and realising a more economical and environmentally friendly monitoring method. At the same time, the integrated turbidity detection light source can intelligently identify and automatically compensate for the effect of water turbidity on the measurement results to ensure data accuracy. In addition, the ERUN-SZ4-A-J5 is equipped with an automatic cleaning brush, a thoughtful design that ensures that the instrument maintains excellent stability and reliability even under the harsh conditions of continuous monitoring over a long period of time. Therefore, it is widely used for continuous real-time monitoring of COD in surface water, industrial wastewater discharges, and inlet and outlet water of wastewater treatment plants.
Sensor type | ERUN-J5A | ERUN-J5B |
COD range | 0-500mg/L | 0-1500mg/L |
TOC range | 0-180 mg/L | 0-600 mg/L |
Turbidity range | 0-300NTU | 0-500NTU |
COD Accuracy | ±5% | |
resolution | 0.01 mg/L | |
temperature range | 0~50℃ | |
protection class | IP68 | |
sensor interface | RS-485，MODBUS protocol | |
power supply | DC12~24V，Current > 1A | |
sizes | Φ50mm *179mm | |
Cable Length | 10m (standard), customizable | |
Housing Material | 316L (custom titanium alloy available) | |
demonstrate | LED liquid crystal display |
Automatic temperature compensation | 0~60℃ |
signal output | 0～20mA(Load resistance＜750Ω) 4～20mA(Load resistance＜750Ω) |
Power supply | 85～265VAC±10%,50±1Hz，Power ≤3W； 9～36VDC，Power ≤3W |
communication output | RS485 Modbus RTU |
environmental temperature | -10℃~60℃ |
relative humidity | Not more than 90% |
sizes | 144mm*144mm*130mm |
Installation | Recessed (Opening size 138*138mm) |
weights | 0.5kg |
| Measurement of COD, TOC, turbidity and temperature. |
Automatically compensates for turbidity disturbances for excellent test performance; |
With self-cleaning brushes to prevent bio-adhesion and longer maintenance intervals; |
| Built-in calibration parameters for easy field use and secondary calibration; |
Adopt LED LCD display, intelligent Chinese/English menu operation; |
Output signal: software selects 0-20mA or 4-20mA output; |
High-resistance preamplifier: high input impedance, anti-noise, strong anti-interference ability; |
Multi-parameter display on the same screen: Simultaneously display pH (or ORP) value, temperature value, two current outputs and relay working status; |
| Self-set password: Users can set or change their own passwords to avoid misuse by uninvolved personnel. |
