The PH controller is one of the intelligent online chemical analysis instruments. it can continuously monitor the dataand realize remote transmission monitoring and recording through the transmission output connection recorder. ltcan also be connected to the RS485 interface .lt can be easily connected to the computer through the MODBUS-RTU protocol. Monitoring and recording. lt is widely used in continuous monitoring of PH value or ORP value andtemperature in solutions such as thermal power, chemical fertilizer, metallurgy, environmental protection.pharmaceutical,biochemical, food and tap water.
Specification
| Model |
T-GWQ-pH6.0 |
| Screen Size |
2.4-inch LCD (Resolution 128*64) |
| Measurement Range |
pH: 0~14pH ORP: ±2000mV |
| Accuracy |
pH: ±0.02pH ORP: ±1mV |
| Resolution |
pH: 0.01pH ORP: 1mV |
| Stability (24h) |
pH: ≤0.02pH ORP: ≤3mV |
| Input Impedance |
≥1012Ω |
| Temperature Measurement Range |
-10~130°C |
| Temperature Measurement Accuracy |
±0.5°C |
| Temperature Compensation |
Manual/Automatic (NTC10K/Pt1000) |
| Power Supply |
220VAC ±10% 50Hz |
| Relay Alarm |
High/Low limit alarms, 1 group (3A/250VAC), normally open relay contacts |
| Communication |
RS485 (Supports MODBUS RTU) |
| Transmission Function |
Can be configured to transmit 4-20mA output, maximum load resistance 750Ω, ±0.1%F.S. |
Industrial pH Meter User Manual
Feature
- High-Precision Measurement: The device offers extremely high measurement accuracy, ensuring precise pH monitoring in complex environments such as wastewater, laboratory samples, and flue gas desulfurization processes.
- Stable Signal Transmission: The pH meter provides highly stable signal transmission, minimizing environmental interference and ensuring reliable long-term monitoring.
- Long-Lasting Design: The instrument's exterior is coated with an anti-static layer, significantly enhancing its anti-static capability and extending its overall lifespan.
- 2.4-Inch High-Definition LCD Display: Equipped with a high-definition LCD display, the meter features a backlight function and allows users to switch between Chinese and English interfaces. The on-site data is clearly visible for easy operation.
- Safe Wiring Terminals: The wiring terminals are designed with a high level of enclosure, preventing exposure of the terminals, ensuring safety during operation.
- Customizable Alarms and Automated Control: The meter supports customizable alarm settings and automated control, allowing users to respond to abnormal conditions promptly and automatically adjust the system's operation.
The pH meter and pH/ORP electrode selection:
| pH/ORP electrode |
Industry |
Temperature range |
Advantage |
| Pure water pH electrode |
Drinking water |
0-60℃ (32-140℉) |
The pH calomel electrode can be used in strong acid or alkali. |
| PTFE pH electrode |
Chemical |
0-60℃ (32-140℉) |
The electrode shell is made of PTFE, suitable for corrosive solution (strong acid or alkali), has longer life in harsh environments. |
| pH glass electrode |
Sewage disposal / food |
0-95℃ (32-203℉) |
Direct lead, double-layer glasses. |
| Desulfurization pH electrode |
Desulfurization |
0-60℃ (32-140℉) |
Flat electrode, strong anti-pollution ability and longer life |
Application
Tips: How does the pH meter function in flue gas desulfurization (FGD)?
The flue gas desulfurization system is used to reduce sulfur dioxide emissions generated during combustion, and accurate control of pH is crucial to desulfurization efficiency. In the FGD process, the pH of the absorption liquid determines the efficiency of the desulfurization reaction; pH levels that are too high or too low will negatively impact the reaction. The industrial pH meter continuously monitors the pH levels inside the absorption tower, helping to ensure optimal reaction conditions. Additionally, the pH meter’s temperature compensation function is particularly important for FGD systems, as temperature fluctuations can affect the accuracy of pH measurements. The meter’s automated control system can also adjust the addition of limestone or other alkaline substances to optimize the efficiency of the desulfurization process.
