The LK-4000 Portable Multi-functional Water Quality Analyzer operates by connecting a multi-functional handheld meter with various digital sensors. The handheld meter features an RS485 communication interface, enabling compatibility with a wide range of digital sensors. It boasts the capability to automatically identify sensor types and supports the connection of sensors for common parameters such as pH, ORP (Oxidation-Reduction Potential), and temperature, as well as professional parameter sensors like self-cleaning turbidity sensors, chlorophyll sensors, and multi-parameter sensors. Additionally, the instrument is equipped with a seven-inch user-friendly display screen, a high-capacity battery, and ample internal storage, ensuring long-lasting battery life and convenient data retention. It serves as a reliable assistant for water quality and environmental monitoring.
The LK-4000 Portable Multi-functional Water Quality Analyzer operates by connecting a multi-functional handheld meter with various digital sensors. The handheld meter features an RS485 communication interface, enabling compatibility with a wide range of digital sensors. It boasts the capability to automatically identify sensor types and supports the connection of sensors for common parameters such as pH, ORP (Oxidation-Reduction Potential), and temperature, as well as professional parameter sensors like self-cleaning turbidity sensors, chlorophyll sensors, and multi-parameter sensors. Additionally, the instrument is equipped with a seven-inch user-friendly display screen, a high-capacity battery, and ample internal storage, ensuring long-lasting battery life and convenient data retention. It serves as a reliable assistant for water quality and environmental monitoring.
Key Features:
Technical Parameters
|
Specifications |
LK-4000 Portable Multi-functional Water Quality Analyzer |
|
Display |
1024*600 IPS Touch Screen |
|
Operating Temperature |
0-50℃ |
|
Storage Temperature |
-20- +65℃ |
|
Timed Screen-off |
Supported |
|
Data Storage |
Supported (4G/8G optional) |
|
Data Transmission |
4G (optional) |
|
Power Supply |
DC12V 5600mAh |
|
External Power Output |
DC12V |
|
Communication Interface |
RS485 |
|
Communication Protocol |
Modbus |
|
Communication Parameters |
9600,n,8,1 |
|
Sensor Types |
pH, ORP, Temperature, Dissolved Oxygen, Total Dissolved Solids, Conductivity, Fluoride Ion, Self-cleaning Turbidity, Suspended Solids, Chlorophyll, Cyanobacteria (Blue-green Algae), COD (Chemical Oxygen Demand), Salinity, Residual Chlorine, Ammonia Nitrogen, etc., as well as multi-parameter sensors |
|
Note |
Only sensors produced by our company are supported. Connecting products from other companies is prohibited to avoid damage. |
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.
