Overview
SMART series intelligent multi-parameter universal controller has high accuracy, its unique professional design can be applied in water, chemical, pharmaceutical, food and hygiene in the production process of the most extreme physical and chemical environments. SMART series intelligent multi-parameter universal controller has modular bus structure, highly scalable functionality, high reliability and comfortable operation.
Principle
PH is the negative logarithm of hydrogen ion concentration (activity): pH=-lg[H+], so the potential characteristics of acid or alkali solution are related to the concentration of hydrogen ion.
The electrochemical PH glass composite electrode is based on the principle of potential difference, so the voltage between the measuring electrode and the reference electrode follows the Nernst equation.
Typical application
▲Source water monitoring
▲Filter monitoring
▲Drinking water quality monitoring
▲Separation process monitoring
▲Cooling water monitoring
▲Circulating water detection
▲Sludge treatment monitoring
▲Aeration tank monitoring
Features
★Smart digital MEMS sensor
★Sensor self-diagnosis, proactively reminding maintenance and management
★Automatically completes all compensation and measurement algorithms
★Quick response sensor
★ IP68 Sensor
★Automatic temperature compensation
★Electrochemical sensor
★KCl plastic gel electrolyte
★PTFE porous permeable material is durable
★Good robustness
★Good stain resistance
★The same electrode can measure PH/ORP at the same time
★Fully automatic cleaning
★The MEMS sensor eliminates the following problems: corrosion, contact problems, salt bridges, moisture, leakage, high resistance connections, and grounding.
Installation
Please note that the installation is more than 15 degrees above the horizontal plane, the first installation and use will take about 20 minutes of polarization time. When not in use for a long time, the PH or ORP electrode can be kept moist (the best storage solution is potassium chloride solution with pH 7 or 3mol, and it must be noted that it cannot be stored in deionized water and acid-base solutions). White potassium chloride crystals appear, which will not affect the measurement after cleaning the surface. If the sensor becomes dry during storage, you can soak the sensor in a pH 7 or 3 mol potassium chloride solution for a period of time, and the sensor will restore the water-containing glass membrane and the reference diaphragm.
Calibration
During pH calibration, wait for 5 to 10 minutes until it is stable before operation can be confirmed.
Application case
Sewage: water inlet, activated sludge and water outlet pipe.
Controller features
• Quick and convenient
The navigation menu contains 6 languages, which can be operated easily.
• Process safety
4.3" or 7" large size color LCD touch screen, convenient and safe touch operation and debugging
Large size screen with red flashing alarm, clearly visible from long distances and in dark areas
Alarm immediately, safe the process
• Alarm event record
Real-time data curve display
Record function for up to 6000 alarms
• Expert calibration function
Multi-point calibration function up to 9 point
• Powerful self-diagnosis function
Built-in heartbeat monitoring function and watchdog
Monitor the status of controllers and sensors, and promptly remind customers to take necessary maintenance
High-standard hardware and software security and password protection
• Powerful control function
High(low) limit control function
Optional: Timer control(automatic cleaning) function
Optional: analog PID controller
Optional: PWM controller
• Flexible fieldbus communication functions for IOT4.0
Optional fieldbus MODBUS, HART, Foundation Fieldbus FF, PROFIBUS PA, PROFIBUS DP, etc.
Product datasheet: pH Analyzer 
, if you need more information, please contact us at info@mzdd.de.