The LK-4100 Portable Four-Parameter Water Quality Analyzer is a portable, multi-parameter water quality measurement instrument designed for detecting water body quality. It can accommodate up to four sensors (with an optional built-in pressure sensor and central cleaning brush available for the host unit). Standard sensors include temperature, conductivity, pH/ORP, turbidity, and dissolved oxygen, with the flexibility to select sensors for different parameters based on research needs. It features a self-cleaning function with a self-cleaning coating and wiper structure to ensure a clean measurement window, prevent microbial growth, and reduce maintenance frequency.
The LK-4100 Portable Four-Parameter Water Quality Analyzer is a portable, multi-parameter water quality measurement instrument designed for detecting water body quality. It can accommodate up to four sensors (with an optional built-in pressure sensor and central cleaning brush available for the host unit). Standard sensors include temperature, conductivity, pH/ORP, turbidity, and dissolved oxygen, with the flexibility to select sensors for different parameters based on research needs. It features a self-cleaning function with a self-cleaning coating and wiper structure to ensure a clean measurement window, prevent microbial growth, and reduce maintenance frequency.
Key Features:
Technical Specifications
|
Specification |
Details |
|
Dimensions |
Diameter 49mm * Length 444mm |
|
Weight |
1.2KG |
|
Main Materials |
POM、316 Stainless Steel |
|
O-Rings: Fluororubber + Nitrile Rubber |
|
|
Cable: PVC |
|
|
Waterproof Rating |
IP68 |
|
Measurement Parameters |
Standard: Temperature, Conductivity, pH/ORP, Turbidity, Dissolved Oxygen |
|
Data Output Formats |
RS 485, Modbus Protocol; Bluetooth (Optional) |
|
Internal Storage |
4M (Optional) |
|
Power Supply |
DC 12～24V |
|
Operating Temperature Range |
0～50℃ |
|
Working Pressure Range |
0.6Mpa |
|
Cable Length |
5m Standard Cable, Other Lengths Available |
|
Warranty Period |
1-year warranty for the sensor body, 1-year warranty for pH and ORP electrodes, 6-month warranty for ionic electrodes |
Optional Sensors and Parameters
|
Sensor |
Measurement Range |
Measurement Accuracy |
Resolution |
|
pH |
0 to 14 pH |
±0.1 pH |
0.01 pH |
|
ORP |
-1999 to +1999mV |
±20mV( in standard solution ) |
±0.1mV |
|
EC |
0 to 200ms/cm |
0 to 100: ±0.5% of reading; 100 to 200: ±1% of reading |
1μS/cm to 100μS/cm(Based on range) |
|
Depth |
0 to 100m, 200m, 300m range options |
＜±0.05%F.S |
0.001-0.1m(Based on range) |
|
DO |
0 to 200% saturation, 0 to 20mg/L |
0～100%: <±1%; 100～200%: <±1.5% |
0.001～0.01mg/ L |
|
Temperature |
0 to 50℃ |
±0.2℃ |
0.01℃ |
|
Chlorophyll |
0 to 400ug/L |
R² >0.999 |
0.01ug/L |
|
Cyanobacteria |
0 to 100ug/L or 0 to 100RFU |
R² >0.999 |
0.01ug/L |
|
NTU |
0.01 to 4000NTU |
0 to 10NTU: ±0.1NTU; 10 to 100NTU: ±2% of reading or ±0.1NTU (whichever is greater); 100 to 4000NTU: ±5% of reading |
0-10NTU:0.01NTU; 10-100NTU:0.1NTU; 100-4000NTU:1NTU |
|
SALT |
0 to 80 ppt |
±1% of reading |
0.01ppt |
|
fDOM |
0 to 200 ppb |
±1% of reading |
0.01ppb |
|
TSS |
0 to 50000 g/L |
Based on range |
Based on range |
|
TDS |
0 to 1000 mg/L |
Based on range |
Based on range |
|
COD |
0.1 to 1000mg/L (equiv.KHP)(200, 500, 1000 range options) |
±2% or 0.5 mg/L (whichever is greater) (equiv. KHP) |
0.1mg/L(equiv. KHP) |
|
NH4+ |
0-10、100、1000mg/ Lrange options |
10% or ±0.2mg/L (whichever is greater) |
0.01mg/L-0.1mg/L (based on range) |
▲ The instrument parameters listed are performance parameters under typical application conditions and do not include possible future changes.
▲ Accuracy parameters are obtained under stable and controlled environmental conditions and may differ from actual application in natural environments.
