Aquas - Model SMR39 Series -Potassium (K+) Analyzer

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Potassium Analyzer is connected directly via RS485 communication interface, providing simple, reliable, cost-saving process data with remote monitoring, calibration, configuration and diagnostics capabilities. The Potassium Meter housing in a robust IP68 proof enclosure, 1500 N tensile strength Kevlar reinforced cable, up to 1.2 km digital data transmission, the K+ Analyzer and K+ Meter is ideally used in water/wastewater industry.

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All-in-One Compact Housing, Built-in Transmitter and Sensors
On-line Realtime Measurement
Ultra Low Power Consumption, Ideal for Outdoor Applications
1500 N Tensile Strength Kevlar Reinforced Cable
Temperature Compensation
Surge Protection for Power and RS485 Communication
RS485 Digital Communication, Minimize Cabling and Engineering Cost
Standard Modbus RTU Protocol, Direct Connected with PLC, HMI
Very Stable Electrodes, without the Need of Frequent Calibration
Metal Membrane of Electrode to Prevent Scratch
Electrode is over 12 Months Long Period of Life
Auto Cleaning wiper, Less Maintenance
Onboard Memory Allowing Users Easily Calibrate and Configure Sensor at Lab and Distribute to Various Fields Site
Software Tool for Data Monitoring, Calibration, Configuration and Diagnosis

Type: ISE
Measurement range: 0~1,000 mg/L
Accuracy: ±5 % of reading ±0.5 mg/L
Resolution: 0.01 mg/L
Repeatability: ±3 % of reading ±0.5 mg/L
Operating pH: pH 4~8.5
Operation pressure: Max.0.2 Kgf/cm2
Operating temperature: 0~40 °C
Process flow rate: 0.1~10 m/s
Response time: 2 min (90%)
Temperature sensor: Pt100
Protection: IP68
Sensor: NTC10K
Temperature measurement range: 0~40 °C
Temperature accuracy: ±5 °C
Resolution: 0.01 °C
Housing: POM
Dimension: Φ47 x 279 mm
Weight:

analyzer: approx. 1.5 Kg
cable: 80 g/m

RS485 (Modbus RTU protocol), 19,200 bps, 8 data bits, no parity, 1 stop bit; 4~20 mA (optional)
Data Resolution: 16 bits (0.001% FS)
Surge Protection: 4000 V DC
Power: 3.6~12 V DC ±10%, 20 mA
Protection: polarity, overload, short circuit
Safety: CE, FCC

Typical Applications

Surface water, industry, fishery, water treatment, wastewater

Measurement Method

The ion selective electrode continuous measurement of potassium is carried out with a specific membrane that is selective of potas- sium ion. That membrane create charge seperation between the water surrounded electrode and internal filling solution. The charge is measured as a voltage that changes the concentration in the water adjacent the membrane. Compared with the traditional colorimetric method, there are many advantages such as fast response time, more accurate, easier and no reagents used.