A pH meter is a commonly used instrument. With the development of science and technology, the application scope and technology of pH meter are constantly improving. There are many kinds of pH meters, and various pH meter products are used to accurately measure the pH value of liquid media, such as industrial production and processing, food testing and other fields.
So today we will introduce some purchasing skills about pH meters when purchasing. We hope that after reading this article, it will be helpful for you to purchase a pH meter.
Now, we will introduce the online pH meter in detail, hoping to help you purchase a pH meter.
An online pH meter refers to an instrument used to measure the pH value of a solution. PH meter is widely used in environmental protection, sewage treatment, scientific research, fermentation, chemical industry, aquaculture, water purification, tap water, domestic water and pH detection of various liquids. Digital pH Meter
The online pH meter simplifies functions on the basis of guaranteed performance and has a price advantage. Clear display, simple operation and excellent test performance make it extremely cost-effective. The online pH meter can be widely used in the continuous monitoring of the pH value of solutions such as thermal power, chemical fertilizers, metallurgy, environmental protection, biochemistry, food, and tap water.
The pH meter is a high-precision instrument, so special attention should be paid when purchasing a pH meter. A suitable acidity meter can prolong the service life of the acidity meter, please confirm the following parameters before ordering:
Test medium (including medium composition, concentration, turbidity and other conditions).
Detect medium temperature and pressure.
Probe installation method.
Probe signal line length (standard configuration 10m).
The header uses the environment.
hint:
PH Meter/Industrial PH Meter/Online PH Meter/Acidity Meter/Online PH Meter/Industrial PH Meter Selection Tips :
Does the medium contain corrosive substances? What is the concentration? (Probes should be used for strong acids and bases). Note: If it contains hydrofluoric acid, an HF resistant probe should be used.
For the temperature and pressure of the medium, the general condition is to choose a probe within 0-80°C. If the temperature is high, it is necessary to choose a high temperature resistant probe. The normal pressure is generally 0.6mpa. For high voltage, a high voltage probe should be selected.
Probe installation methods: embedded installation, side wall installation, pipeline installation, flange installation, floating installation, flow installation.
The distance between the probe sensor (electrode) and the pH display instrument is within 30 meters, and the standard is 10 meters. If it exceeds 30 meters, a signal amplifier or secondary instrument should be configured.
PH instrument environment: indoor, outdoor, waterproof, explosion-proof, wall-mounted, cabinet, acid-resistant, alkali-resistant and other conditions.
Online pH meter acidity meter purchase tips:
How to choose an online pH meter: The standard pH meter is generally used as a pH value Detector for conventional water at normal temperature and pressure. The changes of the following parameters are closely related to the price of the online pH meter.
Online PH meter composition:
The display host, also known as the secondary instrument, is used to display the measured value.
Sensors, also known as electrodes or probes, are used to sense the pH of water.
Mounting parts for protecting sensors, such as pipe type, pool type, floating type, etc.
Cables are used to connect electrodes and auxiliary instruments.
Before buying an online pH meter, you need to know in detail the site conditions for measuring the pH value as follows:
Medium: such as sewage, pure water, tap water, etc.
Medium temperature: room temperature or high temperature
Sensor/electrode installation: Water Tank, pipeline installation (need to confirm the pressure and flow), box (need to confirm the Water Tank material, temperature, pressure, sensor installation location and other detailed information)
Required cable length (cable required between sensor and secondary instrumentation). If the distance is relatively long, it is recommended to choose a signal amplifier
notes:
Whether the water quality contains corrosive substances, and the approximate concentration. If it contains hydrofluoric acid, the optional HF acid resistant sensor is required.
Temperature, such as high temperature, needs to select the corresponding high temperature sensor.
