Process Instrumentation

EN 2200-MLSS, EN 2200-SS

EN 2200-MLSS

The EN 2200-MLSS is a measuring instrument designed to measure the mixed liquor suspended solids (MLSS) in activated sludge processes.

It can be applied in wastewater treatment, air treatment, and various industrial processes.

EN 2200-SS

The EN 2200-SS is a measuring instrument designed to measure the suspended solids concentration in water.

It is suitable for use in water quality TMS plants, wastewater treatment, air treatment, and various industrial processes.

Product Information

Key Features: • Built-in process control program
• Built-in data logger function
• Design the Setup Menu to be adaptable to special specifications according to user requirements
• Backlit graphic LCD display showing measurement values and temperature simultaneously
• Measurement signal output: DC 4–20 mA, RS-485, or RS-232C output available
• Single or multiple nozzle spray cleaning (individual or combined cleaning)
• Built-in automatic temperature correction
• Built-in Overvoltage Protection Circuit
• Built-in Self-diagnosis and Self-cleaning Functions
• Various installation methods available

Transmitter Specifications

Measurement Range	MLSS : 0.00 ~ 20,000 mg/L SS : 0 ~ 1,000 mg/L	Control Contact	Relays (settable On/Off points) x 2 Cleaning contact x 1 Temperature contacts (heater, FAN) x 2
Resolution	0.01, 0.1, 1, 10, 100 mg/L (Adjustable according to the measurement range)	Control Contact Capacity	5A 30VDC 5A 250VAC
Accuracy	± 1% of F.S	Control Contact Capacity	5A 30VDC 5A 250VAC
Repeatability	± 1% of F.S	Cleaning Method	Wiper Cleaning
Correction Method	Auto 2-point correction (use standard solution)	Cleaning Cycle	0 ~ 24 hours
Response Time	T₉₀ < 120s	Cleaning Time	0 ~ 10 minutes (user programmable) Output signal holding function
Temperature Compensation	-	Power Supply	90~260VAC, 50/60Hz
Ambient Temperature	-25 ~ 80℃	Power Consumption	Under 30VA
Analog Output	DC 4–20 mA, Isolated (for measured values & temperature) x 2 (MAX)	Protection Class	IP 65
Digital Output	RS232C, RS485	Dimensions	144(W) x 144(H) x 137(D) mm

Sensor Specifications (MLSS/SS)

Measurement Lights	2~4 Beam
Measurement Type	Scatter Type (2~4 beam)
Light Source/Detector	LED / Photo Diode
Measuring Range	MLSS : 0 ~20000 mg/L
Measuring Range	SS : 0~1000 mg/L
Material	SUS 304, SUS 316L, Window - Sapphire (Cleaning Rubber - Viton (Wiper))
Cleaning Method	Wiper Cleaning
Protection Rating	IP 68

Sensor Holder(MLSS/SS)

Type	Immersion type, Flow-through type, floating type
Holder Material	SUS316L
Cleaning Device Material	SUS316L, PP, PVC, CPVC, POM