PH Sensors, Electrodes And Probes for Water Quality Monitoring
Product Description
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PPH-500 pH Online Analyzer
Introduction
PPH-500 pH sensor is a combination electrode combined precious metals indicator electrode with reference electrode. Firstly measure the potential difference of working battery made up of measuring electrode and reference electrode in the solution,thenuselinearrelationofpHvalueofthemeasuringsolutionandpotentialofworkingbatterytorealizetheon-line monitoring.
What is pH sensor?
A water pH sensor is an essential device used to measure the acidity or alkalinity of water. The pH scale, ranging from 0 to 14, serves as a numerical indicator of water's chemical nature. A pH value of 7 represents neutrality. Values below 7 signify acidic conditions, while those above 7 indicate alkalinity.
Main Features
⊃2; Good repeatability and stablity.
⊃2; Simple cleaning and activation,quite high balance speed.The function of automatic temperature compensation.
⊃2; Optional analog-digital conversion module to achieve digital signal output,high anti-jamming capacity and far distance transmission .
⊃2; Optional analog-digital conversion module to achieve standard digital signal output(RS485),can achieve integration and networking with other equipment without controller.
⊃2; Quick and easy field installation,plug and play.
⊃2; Sensor power supply positive and negative reverse connection protection
⊃2; Sensor RS485 A/B terminal is connected to the power supply protection
⊃2; With time display, data storage and historical data viewing function;
⊃2; Optional data wireless transmission module.
Application
⊃2; PH online monitoring in technological process of inlet/outlet of sewage treatment plant,sedimentation basin and biochemical reaction basin and so on.
⊃2; PH online monitoring of municipal water supply industry,surface water and aquaculture and so on.
⊃2; PH online monitoring of industrial process water and in wastewater treatment process.
Technical Specifications
Main material | Black Polypropylene,Ag/Agcl Reference Gel |
Measurement range | 0-14pH |
Temperature range | 0-80℃ |
Pressure range | ≤0.6Mpa |
Zero potential pH value | 7±0.25pH(15mV) |
Slope | ≥95% |
Internal Resistance | ≤250MΩ |
Alkaline error | 0.2pH(1mol/L Na+ pH14)(25℃) |
Response time | ≤10 seconds (Reach 95% of the end value)(After stirring) |
Power supply | AC:85-500VAC;DC:9-36VDC |
Output | 3-way 4-20mA |
Relay | Three-way relays, programmed parameter & value response |
Communication protocol | MODBUS RS485 |
Measuring temperature | 0-80℃(Non-freezing) |
Dimension | Dia 28.7mm*Length195mm;Transmitter:145*125*162mm(L*W*H) |
Weight | Sensor:0.2KG;Transmitter:1.35KG |
Cable length | Standard:10 m, the maximum can be extended |
Typical application
It is widely used in pH monitoring in water treatment, hydrological monitoring, wastewater treatment, swimming pools, fish ponds and fertilizers, chemicals, and biology.
Main features
1. Safety Enough: Power supply and output isolation design to ensure electrical safety
2.Strong anti-interference ability, Power supply and communication chip built-in protection circuit,
3. With a comprehensive protection circuit design, it can work reliably without additional isolation equipment
4. The circuit part is designed inside the electrode, the environment is well tolerated, and the installation operation is easier.
5. RS-485 transmission interface, MODBUS-RTU communication protocol, two-way communication, can receive remote commands
6. Output more electrode diagnostic information, more intelligent
7. Internal integrated memory, memory calibration and setting information can be memorized after power off