The multi-parameter water quality meter is a measuring instrument that integrates pH/ORP, conductivity, salinity, dissolved oxygen (DO), turbidity, COD, TOC, ammonia nitrogen, nitrate nitrogen, and temperature into one instrument.
The instrument can be installed with up to four sensors to obtain water quality parameter data. Each sensor uses different electrochemical, optical, or physical detection means to measure the respective parameters. Users can read the measurement data through handheld instruments and the data acquisition instrument to transfer data to the data acquisition platform.
| Item | Specification |
|---|---|
| Dimension | φ66 × 466mm (Without Battery) |
| Power requirements | DC 24V |
| Operating temperature | 2 to 45℃ |
| Installation | Submerged |
| Depth | Maximum 100m |
| Communication | RS485 (Modbus RTU), WiFi/Bluetoth |
| Parameter | Model No. | Range | Resolution | Accuracy （Standard solution） |
|---|---|---|---|---|
| pH | ASM002820 | 0-14 | 0.01 | ±0.1 |
| ORP | ASM002821 | -1500 mV ~ 1500 mV | 1 mV | ±20 mV |
| pH& | ASM002772 | pH: 0-14 | pH: 0.01 | pH: ±0.1 |
| ORP | ORP: -1500 mV ~ 1500 mV | ORP: 1 mV | ORP: ±20 mV | |
| K+ | ASM002771 | 0-1000 mg/L | 1 mg/L | ±5% or ±1 mg/L |
| NH3-N | ASM002770 | 0-1000 mg/L | 1 mg/L | ±5% or ±1 mg/L |
| EC | ASM002774 | 0.001-200 000 μS/cm | 0.001 μS/cm | ±5% |
| Salinity | 0.01-120 000 mg/L | 0.01 mg/L | ±5% | |
| TDS | 0.01-100 000 mg/L | 0.01 mg/L | ±5% | |
| DO | ASM002775 | 0-20 mg/L | 0.01 mg/L | ±0.1mg/L |
| 0-200% | ||||
| Turbidity | ASM002776 | 0-1000 NTU | 0.001 NTU | ±5% or ±0.015 NTU |
| TSS | 0-2000 mg/L | 1 mg/L | ±5% or ±5 mg/L | |
| COD | ASM002777 | 0-500 mg/L | 0.01 mg/L | ±5% or ±5 mg/L |
| TOC | 0-200 mg/L | 0.01 mg/L | ±5% or ±2 mg/L | |
| NO3-N | 0-50 mg/L | 0.01 mg/L | ±5% or ±1 mg/L | |
| DOC | 0-200 mg/L | 0.01 mg/L | ±5% or ±2 mg/L | |
| Turbidity | 0-500 NTU | 0.01 NTU | ±5% or ±5 NTU | |
| TSS | 0-500 mg/L | 1 mg/L | ±5% or ±5 mg/L | |
| NO3-N | ASM002831 | 0-200 mg/L | 1 mg/L | ±5% or ±1 mg/L |
| Chlorophyll-a | ASM002790 | 0-400 ug/L | 0.01 ug/L | R2>0.999 |
| 0-100 RFU | 0.01 RFU | |||
| Blue-green algae | ASM002791 | BGA PC: 0-100 ug/L | 0.01 ug/L | R2>0.999 |
| 0-100 RFU | 0.01 RFU | |||
| BGA PE: 0-100 ug/L | ||||
| 0-100 RFU | ||||
| Temperature | / | 0-50 °C | 0.1 °C | ±1 °C |
| Depth | / | 0-100 m | 0.001~1 m | ±0.05 ~ ±10 m |
Malaysia
