Online Sludge Concentration Meter MLSS analyzer ZS-680N online water quality analyzer
Product introduction

Main features

• Waterproof, dust proof, moisture-proof (IP65), high-end design look.
• high precision, high stability and preferable antijamming ability.
• Communicate function: RS-485 communication interface with photoelectric isolation (optional, MODBUS protocol partially compatible), photoelectric isolation 4-20mA current output, the corresponding value can be set freely.
• Watchdog function: make sure the meter doesn't crash.
• Power off protects > 10 years.
• Adopting two-point correction method, the instrument measurement range can be modified.
• The quartz glass lens with high transmittance is used in the optical path of the sensor, and the infrared wave is more stable to transimit and receive, and the photometric compensation is built in to improve the measuring accuracy.
• Relay lag value can be set freely, avoid frequent action of switch relay. It has the function of setting the switch on and off.
• The sludge concentration sensor is not affected by the flow rate and pressure of water.

Online Sludge Concentration Meter MLSS analyzer ZS-680N online water quality analyzer
Technical indicators 

• Measuring Range: 0-50g/L, measurement range can be customizable.
• Resolution: 0.01%, 0.1℃.
• Repeatability: 1%.
• Accuracy: ±1.0%FS，±0.5℃
• Control interface: two groups of ON/OFF contact individual high and low alarm signal photoelectric isolation output
• Signal isolation output: photocoupler isolation protection 4-20mA analog output.
• Relay: relay lag value can be set freely , relay load 3A 220VAC/24VDC
• Working conditions: Ambient temperature is 0~60°C, relative humidity ≤90%.
• Output load: <750Ω（4-20mA）
• Working voltage: AC 220V10%、50/60Hz, sensor: DC 12V
• Size: 96×96×168mm(instrument), 237*φ64mm(sensor)
• Hole-cutting Size: 92×92mm
• Weight: 0.9Kg(instrument), 4.1kg(sensor)
• Protection level: IP65(instrument), IP68(sensor)