Understanding the Importance of Automatic Temperature Compensation (ATC) in pH Meters
pH meters are essential tools used in various industries, including food and beverage, pharmaceuticals, and environmental monitoring. These devices measure the acidity or alkalinity of a solution by determining the concentration of hydrogen ions present. However, one crucial factor that can affect the accuracy of pH measurements is temperature. This is where Automatic Temperature Compensation (ATC) comes into play.
ATC is a feature found in many modern pH meters that automatically adjusts the pH reading based on the temperature of the solution being tested. This is important because the pH of a solution can change with temperature due to the nature of the chemical reactions involved. For example, as temperature increases, the rate of certain chemical reactions may also increase, leading to a shift in pH.
| Model | CM-230S Ecomonical conductivity monitor |
| Range | 0-200/2000/4000/10000uS/cm |
| 0-100/1000/2000/5000PPM | |
| Accuracy | 1.5%(FS) |
| Temp. Comp. | Automatic temperature compensation based on 25℃ |
| Oper. Temp. | Normal 0～50℃; High temp 0～120℃ |
| Sensor | Standard:ABS C=1.0cm-1 (others are optional) |
| Display | LCD Screen |
| Zero Correction | Manual correction for low range 0.05-10ppm Set from ECO |
| Unit Display | uS/cm or PPM |
| Power | AC 220V±10% 50/60Hz or AC 110V±10% 50/60Hz or DC24V/0.5A |
| Working Environment | Ambient temperature:0～50℃ |
| Relative humidity≤85% | |
| Dimensions | 48×96×100mm(H×W×L) |
| Hole Size | 45×92mm(H×W) |
| Installation Mode | Embedded |
ATC works by using a temperature sensor built into the ph meter to monitor the temperature of the solution being tested. The meter then uses this information to automatically adjust the pH reading to account for any temperature-related changes. This ensures that the pH measurement is accurate regardless of the temperature of the solution.
One of the key benefits of ATC is that it saves time and effort for the user. Without ATC, the user would have to manually adjust the pH reading based on the temperature of the solution, which can be time-consuming and prone to errors. With ATC, this process is automated, making pH measurements quicker and more reliable.
| FL-9900 High Precision Type Runner Flow Controller | ||
| Measuring range | Frequency | 0～2K Hz |
| Velocity of flow | 0.5～5 m/s | |
| Instantaneous flow | 0～2000 m³/h | |
| Cumulative flow | 0～9999 9999.999 m³ | |
| Applicable pipe diameter range | DN15～DN100;DN125～DN300 | |
| Resolution | 0.01 m³/h | |
| Refresh rate | 1s | |
| Accuracy class | Level 2.0 | |
| Repeatability | ±0.5% | |
| Sensor input | Radius:0～2K Hz | |
| Supply voltage:DC 24V(instrument internal supply) | ||
| The electronic unit automatically temperature compensates for errors | +0.5%FS; | |
| 4-20mA | Technical characteristics | Meter/transmitter dual mode (photoelectric isolation) |
| Loop resistance | 500Q(max)，DC24V; | |
| Transmission accuracy | ±0.01mA | |
| Control port | Contact mode | Passive relay control output |
| Load capacity | Load current 5A (max) | |
| Function selection | Instantaneous flow upper/lower alarm | |
| Mains supply | Working voltage: DC24V 4V Power consumption :<; 3.OW | |
| Cable length | Factory configuration: 5m, can be agreed: (1~500) m | |
| Environmental requirement | Temperature: 0~50℃; Relative humidity: ≤85%RH | |
| Storage environment | Temperature: (-20~60) ℃; Humidity: 85%RH | |
| Overall dimension | 96×96×72mm（height × width × depth） | |
| Opening size | 92×92mm | |
| Installation mode | Disc mounted, fast fixed | |
| Sensor | Body material | Body: Engineering plastic PP; Bearing :Zr02 high temperature zirconia |
| Flow rate range | 0.5～5 m/s | |
| Withstand pressure | ≤0.6MPa | |
| Supply voltage | lDC 24V | |
| Output pulse amplitude| | Vp≥8V | |
| Normal pipe diameter | DN15～DN100;DN125～DN600 | |
| Medium characteristic | Single-phase medium（0~60℃） | |
| Installation mode | Direct line insertion | |
Another advantage of ATC is that it allows for more consistent and reliable pH measurements. By automatically compensating for temperature changes, ATC ensures that the pH reading is accurate and consistent, even when testing solutions at different temperatures. This is important for maintaining quality control in various industries where precise pH measurements are essential.
In addition to improving the accuracy and reliability of pH measurements, ATC also extends the lifespan of the ph meter itself. Fluctuations in temperature can affect the internal components of the meter over time, leading to decreased accuracy and performance. By using ATC to compensate for temperature changes, the ph meter is better protected from these fluctuations, resulting in a longer lifespan and more reliable performance.
Overall, Automatic Temperature Compensation is a crucial feature in modern pH meters that ensures accurate and reliable pH measurements in various industries. By automatically adjusting the pH reading based on the temperature of the solution being tested, ATC saves time and effort for the user, improves the accuracy and consistency of pH measurements, and extends the lifespan of the ph meter. For anyone working with pH meters, understanding the importance of ATC is essential for obtaining precise and reliable pH measurements.
