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Process Instrumentation

EN 2200-DO
EN 2200-DO

EN 2200-DO

The EN 2200-DO Dissolved Oxygen Analyzer is a measuring instrument that can measure oxygen dissolved in water. It can be applied widely in wastewater treatment, sewage treatment, and process management.

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

Detailed Product Description

Transmitter Specifications

Measurement Range
DO : 0.00 ~ 20.00 mg/L

     Temp.: 0 ~ 99.9 °C

Control Contact

Relays (settable On/Off points) x 2

Cleaning contact x 1

Temperature contacts (heater, FAN) x 2

Resolution
0.01 mg/L, 1 ppb
Control Contact Capacity

5A 30V DC

5A 250V AC

Accuracy
±0.5% of F.S
Repeatability
±0.5 % of F.S
Cleaning Method
Spray type (air/water)
Correction Method
Atmospheric saturation or saturated water as a correction medium
Cleaning Cycle
0 ~ 24 hours
Response Time
98% in 30 seconds at 25°C
Cleaning Time

0 ~ 10 minutes (user programmable)

Output signal holding function

Temperature Compensation
 0 ~ 60°C
Power Supply

90~260 VAC, 50/60 Hz

Ambient Temperature
-25 ~ 80°C
Power Consumption
Under 30VA
Analog Output

DC 4–20 mA, Isolated 

(for measured values & temperature) x 2 (MAX)

Protection Rating
IP 65
Digital Output
RS-232C, RS-485
Dimensions
144(W) x 144(H) x 137(D) mm


Sensor Specifications

Sensor Model
     HDS-1
HDS-2
HDS-3
Measurement Method
Polarographic
Galvanic
Optical
Measurement Range
0~20 mg/L
0~20 mg/L
0~20 mg/L
Temperature Range
0~50 ℃
0~50 ℃
0~50 ℃
Pressure Conditions
0~4 bar
0~4 bar
0~4 bar
Polarization Time
8~12 Hr
X
X
Polarization Voltage
750mV
X
X
Response Time
T90 < 60s
T90 < 30s
T90 < 30s
Temperature Sensor
PT1000
PT1000
PT1000
Protection Rating
IP 68
IP 68
IP 68


Sensor Holder 

Type
Immersion type, Flow-through type, floating type
Holder Material
SUS304, SUS316, PP, PVC, CPVC
Cleaning Device Material
SUS304, SUS316, PP, PVC, CPVC, POM


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