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TDS Coefficient | Measuring range | Pressure | Installation | Material | application area |
K=0.01 | 0-20μS/cm | <0.6MPa | Hard, hose, flange and other pipe diameter: φ 6. φ 8. φ 14; chuck quick installation | 316L and titanium alloy | Power plants, water treatment industry |
K=0.1 | 0-200μS/cm | <0.6MPa | Hard, hose, flange and other pipe diameter: φ 6. φ 8. φ 14; chuck quick installation | 316L and titanium alloy | Power plants, water treatment industry |
K=1.0 | 0-2000μS/cm | <0.6MPa | 1/2 or 3/4 screw thread mounting;chuck quick mounting | 316L and titanium alloy, aluminum gold | water treatment industry |
K=10.0 | 0-20000μS/cm | <0.6MPa | 1/2 or 3/4 screw thread mounting | Polysulfone and forceps gold | water treatment industry |
K=30.0 | 30-600mS/cm | <0.6MPa | 3/4 screw thread mounting | polysulfone | acid cleaned |



ECG-2090Pro | DDG-2090 | DDG-2080S |
Measurement: Conductivity/Salinity/TDS/Resistivity/Temperature | Measurement: Conductivity | Measurement: Conductivity/Salinity/TDS/Resistivity/Temperature |
Measuring range: 0.00uS/cm~2000000.00 uS/cm; 0.00g/L~80.00 g/L(ppt); 0.00mg/L~130000.00 mg/L(ppm); 0.00MΩ~20.00MΩ; -40.0℃~200.0℃(refer to matching electrode) | Measuring range: 0.1-200 uS/cm (Electrode K=0.1) 1.0-2000 us/cm (Electrode K=1.0) 10-20000 uS/cm ( K=10.0) 0~19.99MΩ(Electrode K=0.01) | Measuring range: 0-2000000.00 us/cm; 0-80.00 ppt; 0-9999.00 mg/L(ppm); 0-20.00MΩ; -40.0-130.0℃. |
Sensor type: Analog Sensor | Sensor type: Analog Sensor | Sensor type: Digital Sensor with RS485 Modbus |
Relay:TWO Relay | Relay:Three Relay | |
Shell material: ABS plastic | Shell material: ABS plastic | Shell material: ABS plastic |
Power supply: 90V ~ 260V AC 50/60Hz | Power supply: AC 220V ±l0%, 50Hz | Power supply: 90V-260V AC 50/60Hz |
Output: Two 4-20mA output | Output: Two 4-20mA output | Output: Two 4-20mA output |
Size: 98.2×98.2×128.3mm | Size: 96x96x110mm | Size: 144×144×104mm |









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